Hello,

I successfully configured strongswan + xl2tpd and it works but connection is randomly dropped and not re-established. I need the tunnel to be permanently established, with no inactivity timeouts and such stuff. Once it was dropped after (roughly) 9 hours of inactivity, second time after a few hours of inactivity, and last time after half an hour of inactivity (this last time I tested it with 2 clients and both got disconnected at the same time so I guess the problem is somewhere on the server). Clients are Windows 10 machines and are behind NAT. Server is not behind NAT and has a public IP, no firewall. I am using a pre-shared key with mschapv2, no certificates. On server, all software is latest versions.

Output of ipsec statusall:

Status of IKE charon daemon (strongSwan 5.5.1, Linux 4.9.0-4-amd64, x86_64):
  uptime: 17 days, since Nov 01 14:19:07 2017
  malloc: sbrk 1486848, mmap 0, used 417888, free 1068960
  worker threads: 11 of 16 idle, 5/0/0/0 working, job queue: 0/0/0/0, scheduled: 26   loaded plugins: charon aes rc2 sha2 sha1 md5 random nonce x509 revocation constraints pubkey pkcs1 pkcs7 pkcs8 pkcs12 pgp dnskey sshkey pem openssl fips-prf gmp agent xcbc hmac gcm attr kernel-netlink resolve socket-default connmark stroke updown
Listening IP addresses:
  (public server IPv4 address)
  (public server IPv6 address)
Connections:
      bypass:  (public server IPv4 address)...%any  IKEv1/2
      bypass:   local:  [(public server IPv4 address)] uses public key authentication
      bypass:   remote: uses public key authentication
      bypass:   child:  dynamic === 158.193.0.0/16 PASS
L2TP-PSK-noNAT:  (public server IPv4 address)...%any  IKEv1/2, dpddelay=10s
L2TP-PSK-noNAT:   local:  [(public server IPv4 address)] uses pre-shared key authentication
L2TP-PSK-noNAT:   remote: uses pre-shared key authentication
L2TP-PSK-noNAT:   child:  dynamic[udp/l2f] === dynamic[udp] TRANSPORT, dpdaction=clear
Shunted Connections:
      bypass:  dynamic === 158.193.0.0/16 PASS
Security Associations (0 up, 0 connecting):
  none

Note I have censored IPv4 and IPv6 addresses of the server. The 158.193.0.0/16 is just a network I was testing split tunnelling which didn't work but I don't think it has anything to do with the connections being dropped. Server is configured to hand out IPs in range 172.27.27.2 - 254, IP 172.27.27.1 should be the server (or gateway) itself.

Anyway, syslog output is this - it is from 17 Nov 10:56 when such disconnection after 9 hours happened (sorry it's a bit lengthy):

Nov 17 10:56:25 frogy-vpn charon: 06[NET] received packet: from (client public IP)[4500] to (server public IP)[4500] (92 bytes) Nov 17 10:56:25 frogy-vpn charon: 06[ENC] parsed INFORMATIONAL_V1 request 718827516 [ HASH D ] Nov 17 10:56:25 frogy-vpn charon: 06[IKE] received DELETE for IKE_SA L2TP-PSK-noNAT[123] Nov 17 10:56:25 frogy-vpn charon: 06[IKE] deleting IKE_SA L2TP-PSK-noNAT[123] between (server public IP)[(server public IP)]...(client public IP)[10.16.32.227] Nov 17 10:56:56 frogy-vpn charon: 10[NET] received packet: from (client public IP)[4500] to (server public IP)[4500] (408 bytes) Nov 17 10:56:56 frogy-vpn charon: 10[ENC] parsed ID_PROT request 0 [ SA V V V V V V V V ] Nov 17 10:56:56 frogy-vpn charon: 10[ENC] received unknown vendor ID: 01:52:8b:bb:c0:06:96:12:18:49:ab:9a:1c:5b:2a:51:00:00:00:01 Nov 17 10:56:56 frogy-vpn charon: 10[IKE] received MS NT5 ISAKMPOAKLEY vendor ID Nov 17 10:56:56 frogy-vpn charon: 10[IKE] received NAT-T (RFC 3947) vendor ID Nov 17 10:56:56 frogy-vpn charon: 10[IKE] received draft-ietf-ipsec-nat-t-ike-02\n vendor ID
Nov 17 10:56:56 frogy-vpn charon: 10[IKE] received FRAGMENTATION vendor ID
Nov 17 10:56:56 frogy-vpn charon: 10[ENC] received unknown vendor ID: fb:1d:e3:cd:f3:41:b7:ea:16:b7:e5:be:08:55:f1:20 Nov 17 10:56:56 frogy-vpn charon: 10[ENC] received unknown vendor ID: 26:24:4d:38:ed:db:61:b3:17:2a:36:e3:d0:cf:b8:19 Nov 17 10:56:56 frogy-vpn charon: 10[ENC] received unknown vendor ID: e3:a5:96:6a:76:37:9f:e7:07:22:82:31:e5:ce:86:52 Nov 17 10:56:56 frogy-vpn charon: 10[IKE] (client public IP) is initiating a Main Mode IKE_SA Nov 17 10:56:56 frogy-vpn charon: 10[ENC] generating ID_PROT response 0 [ SA V V V V ] Nov 17 10:56:56 frogy-vpn charon: 10[NET] sending packet: from (server public IP)[4500] to (client public IP)[4500] (160 bytes) Nov 17 10:56:56 frogy-vpn charon: 13[NET] received packet: from (client public IP)[4500] to (server public IP)[4500] (228 bytes) Nov 17 10:56:56 frogy-vpn charon: 13[ENC] parsed ID_PROT request 0 [ KE No NAT-D NAT-D ]
Nov 17 10:56:56 frogy-vpn charon: 13[IKE] remote host is behind NAT
Nov 17 10:56:56 frogy-vpn charon: 13[ENC] generating ID_PROT response 0 [ KE No NAT-D NAT-D ] Nov 17 10:56:56 frogy-vpn charon: 13[NET] sending packet: from (server public IP)[4500] to (client public IP)[4500] (212 bytes) Nov 17 10:56:56 frogy-vpn charon: 12[NET] received packet: from (client public IP)[4500] to (server public IP)[4500] (76 bytes) Nov 17 10:56:56 frogy-vpn charon: 12[ENC] parsed ID_PROT request 0 [ ID HASH ] Nov 17 10:56:56 frogy-vpn charon: 12[CFG] looking for pre-shared key peer configs matching (server public IP)...(client public IP)[10.16.32.227] Nov 17 10:56:56 frogy-vpn charon: 12[CFG] selected peer config "L2TP-PSK-noNAT" Nov 17 10:56:56 frogy-vpn charon: 12[IKE] IKE_SA L2TP-PSK-noNAT[124] established between (server public IP)[(server public IP)]...(client public IP)[10.16.32.227] Nov 17 10:56:56 frogy-vpn charon: 12[IKE] scheduling reauthentication in 27730s
Nov 17 10:56:56 frogy-vpn charon: 12[IKE] maximum IKE_SA lifetime 28270s
Nov 17 10:56:56 frogy-vpn charon: 12[IKE] DPD not supported by peer, disabled Nov 17 10:56:56 frogy-vpn charon: 12[ENC] generating ID_PROT response 0 [ ID HASH ] Nov 17 10:56:56 frogy-vpn charon: 12[NET] sending packet: from (server public IP)[4500] to (client public IP)[4500] (76 bytes) Nov 17 10:56:57 frogy-vpn charon: 05[NET] received packet: from (client public IP)[4500] to (server public IP)[4500] (284 bytes) Nov 17 10:56:57 frogy-vpn charon: 05[ENC] parsed QUICK_MODE request 1 [ HASH SA No ID ID NAT-OA NAT-OA ] Nov 17 10:56:57 frogy-vpn charon: 05[IKE] received 250000000 lifebytes, configured 0 Nov 17 10:56:57 frogy-vpn charon: 05[ENC] generating QUICK_MODE response 1 [ HASH SA No ID ID NAT-OA NAT-OA ] Nov 17 10:56:57 frogy-vpn charon: 05[NET] sending packet: from (server public IP)[4500] to (client public IP)[4500] (204 bytes) Nov 17 10:56:57 frogy-vpn charon: 14[NET] received packet: from (client public IP)[4500] to (server public IP)[4500] (60 bytes) Nov 17 10:56:57 frogy-vpn charon: 14[ENC] parsed QUICK_MODE request 1 [ HASH ] Nov 17 10:56:57 frogy-vpn charon: 14[IKE] CHILD_SA L2TP-PSK-noNAT{361} established with SPIs c3e1603c_i d5a116a2_o and TS (server public IP)/32[udp/l2f] === (client public IP)/32[udp/l2f] Nov 17 10:56:59 frogy-vpn xl2tpd[27083]: Maximum retries exceeded for tunnel 30376.  Closing.
Nov 17 10:56:59 frogy-vpn pppd[2154]: Modem hangup
Nov 17 10:56:59 frogy-vpn pppd[2154]: Connect time 456.5 minutes.
Nov 17 10:56:59 frogy-vpn pppd[2154]: Sent 213542226 bytes, received 14511579 bytes.
Nov 17 10:56:59 frogy-vpn charon: 11[KNL] interface ppp0 deactivated
Nov 17 10:56:59 frogy-vpn charon: 08[KNL] 172.27.27.1 disappeared from ppp0
Nov 17 10:56:59 frogy-vpn xl2tpd[27083]: Terminating pppd: sending TERM signal to pid 2154 Nov 17 10:56:59 frogy-vpn xl2tpd[27083]: Connection 10 closed to (client public IP), port 1701 (Timeout)
Nov 17 10:56:59 frogy-vpn pppd[2154]: Connection terminated.
Nov 17 10:56:59 frogy-vpn charon: 09[KNL] interface ppp0 deleted
Nov 17 10:56:59 frogy-vpn pppd[2154]: Exit.
Nov 17 10:57:00 frogy-vpn xl2tpd[27083]: get_call: can't find call 989 in tunnel 30376#012 (ref=0/0) Nov 17 10:57:00 frogy-vpn xl2tpd[27083]: get_call: can't find call 989 in tunnel 30376#012 (ref=0/0) Nov 17 10:57:00 frogy-vpn xl2tpd[27083]: get_call: can't find call 989 in tunnel 30376#012 (ref=0/0) Nov 17 10:57:02 frogy-vpn xl2tpd[27083]: get_call: can't find call 989 in tunnel 30376#012 (ref=0/0) Nov 17 10:57:03 frogy-vpn xl2tpd[27083]: get_call: can't find call 989 in tunnel 30376#012 (ref=0/0) Nov 17 10:57:03 frogy-vpn xl2tpd[27083]: get_call: can't find call 989 in tunnel 30376#012 (ref=0/0) Nov 17 10:57:04 frogy-vpn xl2tpd[27083]: get_call: can't find call 989 in tunnel 30376#012 (ref=0/0) Nov 17 10:57:06 frogy-vpn xl2tpd[27083]: get_call: can't find call 989 in tunnel 30376#012 (ref=0/0) Nov 17 10:57:06 frogy-vpn xl2tpd[27083]: get_call: can't find call 989 in tunnel 30376#012 (ref=0/0) Nov 17 10:57:06 frogy-vpn xl2tpd[27083]: get_call: can't find call 989 in tunnel 30376#012 (ref=0/0) Nov 17 10:57:07 frogy-vpn xl2tpd[27083]: get_call: can't find call 989 in tunnel 30376#012 (ref=0/0) Nov 17 10:57:07 frogy-vpn xl2tpd[27083]: get_call: can't find call 989 in tunnel 30376#012 (ref=0/0) Nov 17 10:57:07 frogy-vpn xl2tpd[27083]: get_call: can't find call 989 in tunnel 30376#012 (ref=0/0) Nov 17 10:57:07 frogy-vpn xl2tpd[27083]: get_call: can't find call 989 in tunnel 30376#012 (ref=0/0) Nov 17 10:57:07 frogy-vpn xl2tpd[27083]: get_call: can't find call 989 in tunnel 30376#012 (ref=0/0) Nov 17 10:57:08 frogy-vpn xl2tpd[27083]: get_call: can't find call 989 in tunnel 30376#012 (ref=0/0) Nov 17 10:57:08 frogy-vpn xl2tpd[27083]: get_call: can't find call 989 in tunnel 30376#012 (ref=0/0) Nov 17 10:57:08 frogy-vpn xl2tpd[27083]: get_call: can't find call 989 in tunnel 30376#012 (ref=0/0) Nov 17 10:57:09 frogy-vpn xl2tpd[27083]: get_call: can't find call 989 in tunnel 30376#012 (ref=0/0) Nov 17 10:57:09 frogy-vpn xl2tpd[27083]: get_call: can't find call 989 in tunnel 30376#012 (ref=0/0) Nov 17 10:57:09 frogy-vpn xl2tpd[27083]: get_call: can't find call 989 in tunnel 30376#012 (ref=0/0) Nov 17 10:57:09 frogy-vpn xl2tpd[27083]: get_call: can't find call 989 in tunnel 30376#012 (ref=0/0) Nov 17 10:57:09 frogy-vpn xl2tpd[27083]: get_call: can't find call 989 in tunnel 30376#012 (ref=0/0) Nov 17 10:57:10 frogy-vpn xl2tpd[27083]: get_call: can't find call 989 in tunnel 30376#012 (ref=0/0) Nov 17 10:57:11 frogy-vpn xl2tpd[27083]: get_call: can't find call 989 in tunnel 30376#012 (ref=0/0) Nov 17 10:57:11 frogy-vpn xl2tpd[27083]: get_call: can't find call 989 in tunnel 30376#012 (ref=0/0) Nov 17 10:57:11 frogy-vpn xl2tpd[27083]: get_call: can't find call 989 in tunnel 30376#012 (ref=0/0) Nov 17 10:57:12 frogy-vpn xl2tpd[27083]: get_call: can't find call 989 in tunnel 30376#012 (ref=0/0) Nov 17 10:57:13 frogy-vpn xl2tpd[27083]: get_call: can't find call 989 in tunnel 30376#012 (ref=0/0) Nov 17 10:57:14 frogy-vpn xl2tpd[27083]: get_call: can't find call 989 in tunnel 30376#012 (ref=0/0) Nov 17 10:57:14 frogy-vpn xl2tpd[27083]: get_call: can't find call 989 in tunnel 30376#012 (ref=0/0) Nov 17 10:57:16 frogy-vpn xl2tpd[27083]: get_call: can't find call 989 in tunnel 30376#012 (ref=0/0) Nov 17 10:57:16 frogy-vpn xl2tpd[27083]: get_call: can't find call 989 in tunnel 30376#012 (ref=0/0) Nov 17 10:57:16 frogy-vpn xl2tpd[27083]: get_call: can't find call 989 in tunnel 30376#012 (ref=0/0) Nov 17 10:57:16 frogy-vpn xl2tpd[27083]: get_call: can't find call 989 in tunnel 30376#012 (ref=0/0) Nov 17 10:57:16 frogy-vpn xl2tpd[27083]: get_call: can't find call 989 in tunnel 30376#012 (ref=0/0) Nov 17 10:57:17 frogy-vpn xl2tpd[27083]: get_call: can't find call 989 in tunnel 30376#012 (ref=0/0) Nov 17 10:57:18 frogy-vpn xl2tpd[27083]: get_call: can't find call 989 in tunnel 30376#012 (ref=0/0) Nov 17 10:57:19 frogy-vpn xl2tpd[27083]: get_call: can't find call 989 in tunnel 30376#012 (ref=0/0) Nov 17 10:57:19 frogy-vpn xl2tpd[27083]: get_call: can't find call 989 in tunnel 30376#012 (ref=0/0) Nov 17 10:57:20 frogy-vpn xl2tpd[27083]: get_call: can't find call 989 in tunnel 30376#012 (ref=0/0) Nov 17 10:57:20 frogy-vpn xl2tpd[27083]: get_call: can't find call 989 in tunnel 30376#012 (ref=0/0) Nov 17 10:57:20 frogy-vpn xl2tpd[27083]: get_call: can't find call 989 in tunnel 30376#012 (ref=0/0) Nov 17 10:57:20 frogy-vpn xl2tpd[27083]: get_call: can't find call 989 in tunnel 30376#012 (ref=0/0) Nov 17 10:57:20 frogy-vpn xl2tpd[27083]: get_call: can't find call 989 in tunnel 30376#012 (ref=0/0) Nov 17 10:57:20 frogy-vpn xl2tpd[27083]: get_call: can't find call 989 in tunnel 30376#012 (ref=0/0) Nov 17 10:57:20 frogy-vpn xl2tpd[27083]: get_call: can't find call 989 in tunnel 30376#012 (ref=0/0) Nov 17 10:57:21 frogy-vpn xl2tpd[27083]: get_call: can't find call 989 in tunnel 30376#012 (ref=0/0) Nov 17 10:57:21 frogy-vpn xl2tpd[27083]: get_call: can't find call 989 in tunnel 30376#012 (ref=0/0) Nov 17 10:57:21 frogy-vpn xl2tpd[27083]: get_call: can't find call 989 in tunnel 30376#012 (ref=0/0) Nov 17 10:57:21 frogy-vpn xl2tpd[27083]: get_call: can't find call 989 in tunnel 30376#012 (ref=0/0) Nov 17 10:57:22 frogy-vpn xl2tpd[27083]: get_call: can't find call 989 in tunnel 30376#012 (ref=0/0) Nov 17 10:57:22 frogy-vpn xl2tpd[27083]: get_call: can't find call 989 in tunnel 30376#012 (ref=0/0) Nov 17 10:57:22 frogy-vpn xl2tpd[27083]: get_call: can't find call 989 in tunnel 30376#012 (ref=0/0) Nov 17 10:57:23 frogy-vpn xl2tpd[27083]: get_call: can't find call 989 in tunnel 30376#012 (ref=0/0) Nov 17 10:57:24 frogy-vpn xl2tpd[27083]: get_call: can't find call 989 in tunnel 30376#012 (ref=0/0) Nov 17 10:57:24 frogy-vpn xl2tpd[27083]: get_call: can't find call 989 in tunnel 30376#012 (ref=0/0) Nov 17 10:57:25 frogy-vpn xl2tpd[27083]: get_call: can't find call 989 in tunnel 30376#012 (ref=0/0) Nov 17 10:57:25 frogy-vpn xl2tpd[27083]: get_call: can't find call 989 in tunnel 30376#012 (ref=0/0) Nov 17 10:57:25 frogy-vpn xl2tpd[27083]: get_call: can't find call 989 in tunnel 30376#012 (ref=0/0) Nov 17 10:57:25 frogy-vpn xl2tpd[27083]: get_call: can't find call 989 in tunnel 30376#012 (ref=0/0) Nov 17 10:57:26 frogy-vpn xl2tpd[27083]: get_call: can't find call 989 in tunnel 30376#012 (ref=0/0) Nov 17 10:57:26 frogy-vpn xl2tpd[27083]: get_call: can't find call 989 in tunnel 30376#012 (ref=0/0) Nov 17 10:57:26 frogy-vpn xl2tpd[27083]: get_call: can't find call 989 in tunnel 30376#012 (ref=0/0) Nov 17 10:57:26 frogy-vpn xl2tpd[27083]: get_call: can't find call 989 in tunnel 30376#012 (ref=0/0) Nov 17 10:57:28 frogy-vpn xl2tpd[27083]: get_call: can't find call 989 in tunnel 30376#012 (ref=0/0) Nov 17 10:57:29 frogy-vpn xl2tpd[27083]: get_call: can't find call 989 in tunnel 30376#012 (ref=0/0) Nov 17 10:57:29 frogy-vpn xl2tpd[27083]: get_call: can't find call 989 in tunnel 30376#012 (ref=0/0) Nov 17 10:57:29 frogy-vpn xl2tpd[27083]: get_call: can't find call 989 in tunnel 30376#012 (ref=0/0) Nov 17 10:57:29 frogy-vpn xl2tpd[27083]: get_call: can't find call 989 in tunnel 30376#012 (ref=0/0) Nov 17 10:57:29 frogy-vpn xl2tpd[27083]: get_call: can't find call 989 in tunnel 30376#012 (ref=0/0) Nov 17 10:57:29 frogy-vpn xl2tpd[27083]: get_call: can't find call 989 in tunnel 30376#012 (ref=0/0) Nov 17 10:57:30 frogy-vpn xl2tpd[27083]: Unable to deliver closing message for tunnel 30376. Destroying anyway. Nov 17 10:57:30 frogy-vpn xl2tpd[27083]: Can not find tunnel 30376 (refhim=0) Nov 17 10:57:30 frogy-vpn xl2tpd[27083]: network_thread: unable to find call or tunnel to handle packet.  call = 989, tunnel = 30376 Dumping. Nov 17 10:57:32 frogy-vpn xl2tpd[27083]: Can not find tunnel 30376 (refhim=0) Nov 17 10:57:32 frogy-vpn xl2tpd[27083]: network_thread: unable to find call or tunnel to handle packet.  call = 989, tunnel = 30376 Dumping. Nov 17 10:57:32 frogy-vpn xl2tpd[27083]: Can not find tunnel 30376 (refhim=0) Nov 17 10:57:32 frogy-vpn xl2tpd[27083]: network_thread: unable to find call or tunnel to handle packet.  call = 989, tunnel = 30376 Dumping. Nov 17 10:57:34 frogy-vpn xl2tpd[27083]: Can not find tunnel 30376 (refhim=0) Nov 17 10:57:34 frogy-vpn xl2tpd[27083]: network_thread: unable to find call or tunnel to handle packet.  call = 989, tunnel = 30376 Dumping. Nov 17 10:57:35 frogy-vpn xl2tpd[27083]: Can not find tunnel 30376 (refhim=0) Nov 17 10:57:35 frogy-vpn xl2tpd[27083]: network_thread: unable to find call or tunnel to handle packet.  call = 989, tunnel = 30376 Dumping. Nov 17 10:57:37 frogy-vpn xl2tpd[27083]: Can not find tunnel 30376 (refhim=0) Nov 17 10:57:37 frogy-vpn xl2tpd[27083]: network_thread: unable to find call or tunnel to handle packet.  call = 989, tunnel = 30376 Dumping. Nov 17 10:57:38 frogy-vpn xl2tpd[27083]: Can not find tunnel 30376 (refhim=0) Nov 17 10:57:38 frogy-vpn xl2tpd[27083]: network_thread: unable to find call or tunnel to handle packet.  call = 989, tunnel = 30376 Dumping. Nov 17 10:57:39 frogy-vpn xl2tpd[27083]: Can not find tunnel 30376 (refhim=0) Nov 17 10:57:39 frogy-vpn xl2tpd[27083]: network_thread: unable to find call or tunnel to handle packet.  call = 989, tunnel = 30376 Dumping. Nov 17 10:57:39 frogy-vpn xl2tpd[27083]: Can not find tunnel 30376 (refhim=0) Nov 17 10:57:39 frogy-vpn xl2tpd[27083]: network_thread: unable to find call or tunnel to handle packet.  call = 989, tunnel = 30376 Dumping. Nov 17 10:57:39 frogy-vpn xl2tpd[27083]: Can not find tunnel 30376 (refhim=0) Nov 17 10:57:39 frogy-vpn xl2tpd[27083]: network_thread: unable to find call or tunnel to handle packet.  call = 989, tunnel = 30376 Dumping. Nov 17 10:57:39 frogy-vpn xl2tpd[27083]: Can not find tunnel 30376 (refhim=0) Nov 17 10:57:39 frogy-vpn xl2tpd[27083]: network_thread: unable to find call or tunnel to handle packet.  call = 989, tunnel = 30376 Dumping. Nov 17 10:57:40 frogy-vpn xl2tpd[27083]: Can not find tunnel 30376 (refhim=0) Nov 17 10:57:40 frogy-vpn xl2tpd[27083]: network_thread: unable to find call or tunnel to handle packet.  call = 989, tunnel = 30376 Dumping. Nov 17 10:57:41 frogy-vpn xl2tpd[27083]: Can not find tunnel 30376 (refhim=0) Nov 17 10:57:41 frogy-vpn xl2tpd[27083]: network_thread: unable to find call or tunnel to handle packet.  call = 989, tunnel = 30376 Dumping. Nov 17 10:57:43 frogy-vpn xl2tpd[27083]: Can not find tunnel 30376 (refhim=0) Nov 17 10:57:43 frogy-vpn xl2tpd[27083]: network_thread: unable to find call or tunnel to handle packet.  call = 989, tunnel = 30376 Dumping. Nov 17 10:57:44 frogy-vpn xl2tpd[27083]: Can not find tunnel 30376 (refhim=0) Nov 17 10:57:44 frogy-vpn xl2tpd[27083]: network_thread: unable to find call or tunnel to handle packet.  call = 989, tunnel = 30376 Dumping. Nov 17 10:57:44 frogy-vpn xl2tpd[27083]: Can not find tunnel 30376 (refhim=0) Nov 17 10:57:44 frogy-vpn xl2tpd[27083]: network_thread: unable to find call or tunnel to handle packet.  call = 989, tunnel = 30376 Dumping. Nov 17 10:57:44 frogy-vpn xl2tpd[27083]: Can not find tunnel 30376 (refhim=0) Nov 17 10:57:44 frogy-vpn xl2tpd[27083]: network_thread: unable to find call or tunnel to handle packet.  call = 989, tunnel = 30376 Dumping. Nov 17 10:57:44 frogy-vpn xl2tpd[27083]: Can not find tunnel 30376 (refhim=0) Nov 17 10:57:44 frogy-vpn xl2tpd[27083]: network_thread: unable to find call or tunnel to handle packet.  call = 989, tunnel = 30376 Dumping. Nov 17 10:57:46 frogy-vpn xl2tpd[27083]: Can not find tunnel 30376 (refhim=0) Nov 17 10:57:46 frogy-vpn xl2tpd[27083]: network_thread: unable to find call or tunnel to handle packet.  call = 989, tunnel = 30376 Dumping. Nov 17 10:57:47 frogy-vpn charon: 12[NET] received packet: from (client public IP)[4500] to (server public IP)[4500] (284 bytes) Nov 17 10:57:47 frogy-vpn charon: 12[ENC] parsed QUICK_MODE request 2 [ HASH SA No ID ID NAT-OA NAT-OA ] Nov 17 10:57:47 frogy-vpn charon: 12[IKE] received 250000000 lifebytes, configured 0 Nov 17 10:57:47 frogy-vpn charon: 12[IKE] detected rekeying of CHILD_SA L2TP-PSK-noNAT{361} Nov 17 10:57:47 frogy-vpn charon: 12[ENC] generating QUICK_MODE response 2 [ HASH SA No ID ID NAT-OA NAT-OA ] Nov 17 10:57:47 frogy-vpn charon: 12[NET] sending packet: from (server public IP)[4500] to (client public IP)[4500] (204 bytes) Nov 17 10:57:47 frogy-vpn charon: 05[NET] received packet: from (client public IP)[4500] to (server public IP)[4500] (60 bytes) Nov 17 10:57:47 frogy-vpn charon: 05[ENC] parsed QUICK_MODE request 2 [ HASH ] Nov 17 10:57:47 frogy-vpn charon: 05[IKE] CHILD_SA L2TP-PSK-noNAT{362} established with SPIs ca2681ac_i 71a4d0f6_o and TS (server public IP)/32[udp/l2f] === (client public IP)/32[udp/l2f] Nov 17 10:57:47 frogy-vpn charon: 14[NET] received packet: from (client public IP)[4500] to (server public IP)[4500] (76 bytes) Nov 17 10:57:47 frogy-vpn charon: 14[ENC] parsed INFORMATIONAL_V1 request 2941237644 [ HASH D ] Nov 17 10:57:47 frogy-vpn charon: 14[IKE] received DELETE for ESP CHILD_SA with SPI d5a116a2 Nov 17 10:57:47 frogy-vpn charon: 14[IKE] closing CHILD_SA L2TP-PSK-noNAT{361} with SPIs c3e1603c_i (15522 bytes) d5a116a2_o (2511 bytes) and TS (server public IP)/32[udp/l2f] === (client public IP)/32[udp/l2f] Nov 17 10:57:47 frogy-vpn xl2tpd[27083]: Can not find tunnel 30376 (refhim=0) Nov 17 10:57:47 frogy-vpn xl2tpd[27083]: network_thread: unable to find call or tunnel to handle packet.  call = 989, tunnel = 30376 Dumping. Nov 17 10:57:49 frogy-vpn xl2tpd[27083]: Can not find tunnel 30376 (refhim=0) Nov 17 10:57:49 frogy-vpn xl2tpd[27083]: network_thread: unable to find call or tunnel to handle packet.  call = 989, tunnel = 30376 Dumping. Nov 17 10:57:50 frogy-vpn xl2tpd[27083]: Can not find tunnel 30376 (refhim=0) Nov 17 10:57:50 frogy-vpn xl2tpd[27083]: network_thread: unable to find call or tunnel to handle packet.  call = 989, tunnel = 30376 Dumping. Nov 17 10:57:50 frogy-vpn xl2tpd[27083]: Can not find tunnel 30376 (refhim=0) Nov 17 10:57:50 frogy-vpn xl2tpd[27083]: network_thread: unable to find call or tunnel to handle packet.  call = 989, tunnel = 30376 Dumping. Nov 17 10:57:50 frogy-vpn xl2tpd[27083]: Can not find tunnel 30376 (refhim=0) Nov 17 10:57:50 frogy-vpn xl2tpd[27083]: network_thread: unable to find call or tunnel to handle packet.  call = 989, tunnel = 30376 Dumping. Nov 17 10:57:50 frogy-vpn xl2tpd[27083]: Can not find tunnel 30376 (refhim=0) Nov 17 10:57:50 frogy-vpn xl2tpd[27083]: network_thread: unable to find call or tunnel to handle packet.  call = 989, tunnel = 30376 Dumping. Nov 17 10:57:50 frogy-vpn xl2tpd[27083]: Can not find tunnel 30376 (refhim=0) Nov 17 10:57:50 frogy-vpn xl2tpd[27083]: network_thread: unable to find call or tunnel to handle packet.  call = 989, tunnel = 30376 Dumping. Nov 17 10:57:53 frogy-vpn xl2tpd[27083]: Can not find tunnel 30376 (refhim=0) Nov 17 10:57:53 frogy-vpn xl2tpd[27083]: network_thread: unable to find call or tunnel to handle packet.  call = 989, tunnel = 30376 Dumping. Nov 17 10:57:54 frogy-vpn xl2tpd[27083]: Can not find tunnel 30376 (refhim=0) Nov 17 10:57:54 frogy-vpn xl2tpd[27083]: network_thread: unable to find call or tunnel to handle packet.  call = 989, tunnel = 30376 Dumping. Nov 17 10:57:56 frogy-vpn xl2tpd[27083]: Can not find tunnel 30376 (refhim=0) Nov 17 10:57:56 frogy-vpn xl2tpd[27083]: network_thread: unable to find call or tunnel to handle packet.  call = 989, tunnel = 30376 Dumping. Nov 17 10:57:56 frogy-vpn xl2tpd[27083]: Can not find tunnel 30376 (refhim=0) Nov 17 10:57:56 frogy-vpn xl2tpd[27083]: network_thread: unable to find call or tunnel to handle packet.  call = 989, tunnel = 30376 Dumping. Nov 17 10:57:57 frogy-vpn xl2tpd[27083]: Can not find tunnel 30376 (refhim=0) Nov 17 10:57:57 frogy-vpn xl2tpd[27083]: network_thread: unable to find call or tunnel to handle packet.  call = 0, tunnel = 30376 Dumping. Nov 17 10:57:59 frogy-vpn xl2tpd[27083]: Can not find tunnel 30376 (refhim=0) Nov 17 10:57:59 frogy-vpn xl2tpd[27083]: network_thread: unable to find call or tunnel to handle packet.  call = 989, tunnel = 30376 Dumping. Nov 17 10:58:02 frogy-vpn xl2tpd[27083]: Can not find tunnel 30376 (refhim=0) Nov 17 10:58:02 frogy-vpn xl2tpd[27083]: network_thread: unable to find call or tunnel to handle packet.  call = 989, tunnel = 30376 Dumping. Nov 17 10:58:03 frogy-vpn xl2tpd[27083]: Can not find tunnel 30376 (refhim=0) Nov 17 10:58:03 frogy-vpn xl2tpd[27083]: network_thread: unable to find call or tunnel to handle packet.  call = 989, tunnel = 30376 Dumping. Nov 17 10:58:03 frogy-vpn xl2tpd[27083]: Can not find tunnel 30376 (refhim=0) Nov 17 10:58:03 frogy-vpn xl2tpd[27083]: network_thread: unable to find call or tunnel to handle packet.  call = 989, tunnel = 30376 Dumping. Nov 17 10:58:03 frogy-vpn xl2tpd[27083]: Can not find tunnel 30376 (refhim=0) Nov 17 10:58:03 frogy-vpn xl2tpd[27083]: network_thread: unable to find call or tunnel to handle packet.  call = 989, tunnel = 30376 Dumping. Nov 17 10:58:04 frogy-vpn xl2tpd[27083]: Can not find tunnel 30376 (refhim=0) Nov 17 10:58:04 frogy-vpn xl2tpd[27083]: network_thread: unable to find call or tunnel to handle packet.  call = 989, tunnel = 30376 Dumping. Nov 17 10:58:04 frogy-vpn xl2tpd[27083]: Can not find tunnel 30376 (refhim=0) Nov 17 10:58:04 frogy-vpn xl2tpd[27083]: network_thread: unable to find call or tunnel to handle packet.  call = 989, tunnel = 30376 Dumping. Nov 17 10:58:04 frogy-vpn xl2tpd[27083]: Can not find tunnel 30376 (refhim=0) Nov 17 10:58:04 frogy-vpn xl2tpd[27083]: network_thread: unable to find call or tunnel to handle packet.  call = 989, tunnel = 30376 Dumping. Nov 17 10:58:05 frogy-vpn xl2tpd[27083]: Can not find tunnel 30376 (refhim=0) Nov 17 10:58:05 frogy-vpn xl2tpd[27083]: network_thread: unable to find call or tunnel to handle packet.  call = 989, tunnel = 30376 Dumping. Nov 17 10:58:05 frogy-vpn xl2tpd[27083]: Can not find tunnel 30376 (refhim=0) Nov 17 10:58:05 frogy-vpn xl2tpd[27083]: network_thread: unable to find call or tunnel to handle packet.  call = 989, tunnel = 30376 Dumping. Nov 17 10:58:06 frogy-vpn xl2tpd[27083]: Can not find tunnel 30376 (refhim=0) Nov 17 10:58:06 frogy-vpn xl2tpd[27083]: network_thread: unable to find call or tunnel to handle packet.  call = 989, tunnel = 30376 Dumping. Nov 17 10:58:07 frogy-vpn xl2tpd[27083]: Can not find tunnel 30376 (refhim=0) Nov 17 10:58:07 frogy-vpn xl2tpd[27083]: network_thread: unable to find call or tunnel to handle packet.  call = 0, tunnel = 30376 Dumping. Nov 17 10:58:08 frogy-vpn xl2tpd[27083]: Can not find tunnel 30376 (refhim=0) Nov 17 10:58:08 frogy-vpn xl2tpd[27083]: network_thread: unable to find call or tunnel to handle packet.  call = 989, tunnel = 30376 Dumping. Nov 17 10:58:09 frogy-vpn xl2tpd[27083]: Can not find tunnel 30376 (refhim=0) Nov 17 10:58:09 frogy-vpn xl2tpd[27083]: network_thread: unable to find call or tunnel to handle packet.  call = 989, tunnel = 30376 Dumping. Nov 17 10:58:11 frogy-vpn xl2tpd[27083]: Can not find tunnel 30376 (refhim=0) Nov 17 10:58:11 frogy-vpn xl2tpd[27083]: network_thread: unable to find call or tunnel to handle packet.  call = 989, tunnel = 30376 Dumping. Nov 17 10:58:11 frogy-vpn xl2tpd[27083]: Can not find tunnel 30376 (refhim=0) Nov 17 10:58:11 frogy-vpn xl2tpd[27083]: network_thread: unable to find call or tunnel to handle packet.  call = 989, tunnel = 30376 Dumping. Nov 17 10:58:12 frogy-vpn xl2tpd[27083]: Can not find tunnel 30376 (refhim=0) Nov 17 10:58:12 frogy-vpn xl2tpd[27083]: network_thread: unable to find call or tunnel to handle packet.  call = 989, tunnel = 30376 Dumping. Nov 17 10:58:14 frogy-vpn xl2tpd[27083]: Can not find tunnel 30376 (refhim=0) Nov 17 10:58:14 frogy-vpn xl2tpd[27083]: network_thread: unable to find call or tunnel to handle packet.  call = 989, tunnel = 30376 Dumping. Nov 17 10:58:14 frogy-vpn xl2tpd[27083]: Can not find tunnel 30376 (refhim=0) Nov 17 10:58:14 frogy-vpn xl2tpd[27083]: network_thread: unable to find call or tunnel to handle packet.  call = 989, tunnel = 30376 Dumping. Nov 17 10:58:17 frogy-vpn xl2tpd[27083]: Can not find tunnel 30376 (refhim=0) Nov 17 10:58:17 frogy-vpn xl2tpd[27083]: network_thread: unable to find call or tunnel to handle packet.  call = 989, tunnel = 30376 Dumping. Nov 17 10:58:17 frogy-vpn xl2tpd[27083]: Can not find tunnel 30376 (refhim=0) Nov 17 10:58:17 frogy-vpn xl2tpd[27083]: network_thread: unable to find call or tunnel to handle packet.  call = 0, tunnel = 30376 Dumping. Nov 17 10:58:18 frogy-vpn xl2tpd[27083]: Can not find tunnel 30376 (refhim=0) Nov 17 10:58:18 frogy-vpn xl2tpd[27083]: network_thread: unable to find call or tunnel to handle packet.  call = 989, tunnel = 30376 Dumping. Nov 17 10:58:18 frogy-vpn xl2tpd[27083]: Can not find tunnel 30376 (refhim=0) Nov 17 10:58:18 frogy-vpn xl2tpd[27083]: network_thread: unable to find call or tunnel to handle packet.  call = 989, tunnel = 30376 Dumping. Nov 17 10:58:18 frogy-vpn charon: 11[NET] received packet: from (client public IP)[4500] to (server public IP)[4500] (284 bytes) Nov 17 10:58:18 frogy-vpn charon: 11[ENC] parsed QUICK_MODE request 3 [ HASH SA No ID ID NAT-OA NAT-OA ] Nov 17 10:58:18 frogy-vpn charon: 11[IKE] received 250000000 lifebytes, configured 0 Nov 17 10:58:18 frogy-vpn charon: 11[IKE] detected rekeying of CHILD_SA L2TP-PSK-noNAT{362} Nov 17 10:58:18 frogy-vpn charon: 11[ENC] generating QUICK_MODE response 3 [ HASH SA No ID ID NAT-OA NAT-OA ] Nov 17 10:58:18 frogy-vpn charon: 11[NET] sending packet: from (server public IP)[4500] to (client public IP)[4500] (204 bytes) Nov 17 10:58:18 frogy-vpn charon: 08[NET] received packet: from (client public IP)[4500] to (server public IP)[4500] (60 bytes) Nov 17 10:58:18 frogy-vpn charon: 08[ENC] parsed QUICK_MODE request 3 [ HASH ] Nov 17 10:58:18 frogy-vpn charon: 08[IKE] CHILD_SA L2TP-PSK-noNAT{363} established with SPIs c09e5a1c_i 54f0dcce_o and TS (server public IP)/32[udp/l2f] === (client public IP)/32[udp/l2f] Nov 17 10:58:18 frogy-vpn charon: 16[NET] received packet: from (client public IP)[4500] to (server public IP)[4500] (76 bytes) Nov 17 10:58:18 frogy-vpn charon: 16[ENC] parsed INFORMATIONAL_V1 request 1593874809 [ HASH D ] Nov 17 10:58:18 frogy-vpn charon: 16[IKE] received DELETE for ESP CHILD_SA with SPI 71a4d0f6 Nov 17 10:58:18 frogy-vpn charon: 16[IKE] closing CHILD_SA L2TP-PSK-noNAT{362} with SPIs ca2681ac_i (7564 bytes) 71a4d0f6_o (0 bytes) and TS (server public IP)/32[udp/l2f] === (client public IP)/32[udp/l2f] Nov 17 10:58:18 frogy-vpn xl2tpd[27083]: Can not find tunnel 30376 (refhim=0) Nov 17 10:58:18 frogy-vpn xl2tpd[27083]: network_thread: unable to find call or tunnel to handle packet.  call = 989, tunnel = 30376 Dumping. Nov 17 10:58:19 frogy-vpn xl2tpd[27083]: Can not find tunnel 30376 (refhim=0) Nov 17 10:58:19 frogy-vpn xl2tpd[27083]: network_thread: unable to find call or tunnel to handle packet.  call = 989, tunnel = 30376 Dumping. Nov 17 10:58:19 frogy-vpn xl2tpd[27083]: Can not find tunnel 30376 (refhim=0) Nov 17 10:58:19 frogy-vpn xl2tpd[27083]: network_thread: unable to find call or tunnel to handle packet.  call = 989, tunnel = 30376 Dumping. Nov 17 10:58:19 frogy-vpn xl2tpd[27083]: Can not find tunnel 30376 (refhim=0) Nov 17 10:58:19 frogy-vpn xl2tpd[27083]: network_thread: unable to find call or tunnel to handle packet.  call = 989, tunnel = 30376 Dumping. Nov 17 10:58:20 frogy-vpn xl2tpd[27083]: Can not find tunnel 30376 (refhim=0) Nov 17 10:58:20 frogy-vpn xl2tpd[27083]: network_thread: unable to find call or tunnel to handle packet.  call = 989, tunnel = 30376 Dumping. Nov 17 10:58:21 frogy-vpn xl2tpd[27083]: Can not find tunnel 30376 (refhim=0) Nov 17 10:58:21 frogy-vpn xl2tpd[27083]: network_thread: unable to find call or tunnel to handle packet.  call = 989, tunnel = 30376 Dumping. Nov 17 10:58:22 frogy-vpn xl2tpd[27083]: Can not find tunnel 30376 (refhim=0) Nov 17 10:58:22 frogy-vpn xl2tpd[27083]: network_thread: unable to find call or tunnel to handle packet.  call = 989, tunnel = 30376 Dumping. Nov 17 10:58:23 frogy-vpn xl2tpd[27083]: Can not find tunnel 30376 (refhim=0) Nov 17 10:58:23 frogy-vpn xl2tpd[27083]: network_thread: unable to find call or tunnel to handle packet.  call = 989, tunnel = 30376 Dumping. Nov 17 10:58:23 frogy-vpn xl2tpd[27083]: Can not find tunnel 30376 (refhim=0) Nov 17 10:58:23 frogy-vpn xl2tpd[27083]: network_thread: unable to find call or tunnel to handle packet.  call = 989, tunnel = 30376 Dumping. Nov 17 10:58:23 frogy-vpn xl2tpd[27083]: Can not find tunnel 30376 (refhim=0) Nov 17 10:58:23 frogy-vpn xl2tpd[27083]: network_thread: unable to find call or tunnel to handle packet.  call = 989, tunnel = 30376 Dumping. Nov 17 10:58:23 frogy-vpn xl2tpd[27083]: Can not find tunnel 30376 (refhim=0) Nov 17 10:58:23 frogy-vpn xl2tpd[27083]: network_thread: unable to find call or tunnel to handle packet.  call = 989, tunnel = 30376 Dumping. Nov 17 10:58:24 frogy-vpn xl2tpd[27083]: Can not find tunnel 30376 (refhim=0) Nov 17 10:58:24 frogy-vpn xl2tpd[27083]: network_thread: unable to find call or tunnel to handle packet.  call = 989, tunnel = 30376 Dumping. Nov 17 10:58:25 frogy-vpn xl2tpd[27083]: Can not find tunnel 30376 (refhim=0) Nov 17 10:58:25 frogy-vpn xl2tpd[27083]: network_thread: unable to find call or tunnel to handle packet.  call = 989, tunnel = 30376 Dumping. Nov 17 10:58:26 frogy-vpn xl2tpd[27083]: Can not find tunnel 30376 (refhim=0) Nov 17 10:58:26 frogy-vpn xl2tpd[27083]: network_thread: unable to find call or tunnel to handle packet.  call = 989, tunnel = 30376 Dumping. Nov 17 10:58:26 frogy-vpn xl2tpd[27083]: Can not find tunnel 30376 (refhim=0) Nov 17 10:58:26 frogy-vpn xl2tpd[27083]: network_thread: unable to find call or tunnel to handle packet.  call = 989, tunnel = 30376 Dumping. Nov 17 10:58:26 frogy-vpn xl2tpd[27083]: Can not find tunnel 30376 (refhim=0) Nov 17 10:58:26 frogy-vpn xl2tpd[27083]: network_thread: unable to find call or tunnel to handle packet.  call = 989, tunnel = 30376 Dumping. Nov 17 10:58:27 frogy-vpn xl2tpd[27083]: Can not find tunnel 30376 (refhim=0) Nov 17 10:58:27 frogy-vpn xl2tpd[27083]: network_thread: unable to find call or tunnel to handle packet.  call = 0, tunnel = 30376 Dumping. Nov 17 10:58:28 frogy-vpn xl2tpd[27083]: Can not find tunnel 30376 (refhim=0) Nov 17 10:58:28 frogy-vpn xl2tpd[27083]: network_thread: unable to find call or tunnel to handle packet.  call = 989, tunnel = 30376 Dumping. Nov 17 10:58:28 frogy-vpn xl2tpd[27083]: Can not find tunnel 30376 (refhim=0) Nov 17 10:58:28 frogy-vpn xl2tpd[27083]: network_thread: unable to find call or tunnel to handle packet.  call = 989, tunnel = 30376 Dumping. Nov 17 10:58:28 frogy-vpn xl2tpd[27083]: Can not find tunnel 30376 (refhim=0) Nov 17 10:58:28 frogy-vpn xl2tpd[27083]: network_thread: unable to find call or tunnel to handle packet.  call = 989, tunnel = 30376 Dumping. Nov 17 10:58:29 frogy-vpn xl2tpd[27083]: Can not find tunnel 30376 (refhim=0) Nov 17 10:58:29 frogy-vpn xl2tpd[27083]: network_thread: unable to find call or tunnel to handle packet.  call = 989, tunnel = 30376 Dumping. Nov 17 10:58:29 frogy-vpn xl2tpd[27083]: Can not find tunnel 30376 (refhim=0) Nov 17 10:58:29 frogy-vpn xl2tpd[27083]: network_thread: unable to find call or tunnel to handle packet.  call = 989, tunnel = 30376 Dumping. Nov 17 10:58:29 frogy-vpn xl2tpd[27083]: Can not find tunnel 30376 (refhim=0) Nov 17 10:58:29 frogy-vpn xl2tpd[27083]: network_thread: unable to find call or tunnel to handle packet.  call = 989, tunnel = 30376 Dumping. Nov 17 10:58:29 frogy-vpn xl2tpd[27083]: Can not find tunnel 30376 (refhim=0) Nov 17 10:58:29 frogy-vpn xl2tpd[27083]: network_thread: unable to find call or tunnel to handle packet.  call = 989, tunnel = 30376 Dumping. Nov 17 10:58:31 frogy-vpn xl2tpd[27083]: Can not find tunnel 30376 (refhim=0) Nov 17 10:58:31 frogy-vpn xl2tpd[27083]: network_thread: unable to find call or tunnel to handle packet.  call = 989, tunnel = 30376 Dumping. Nov 17 10:58:31 frogy-vpn xl2tpd[27083]: Can not find tunnel 30376 (refhim=0) Nov 17 10:58:31 frogy-vpn xl2tpd[27083]: network_thread: unable to find call or tunnel to handle packet.  call = 989, tunnel = 30376 Dumping. Nov 17 10:58:32 frogy-vpn xl2tpd[27083]: Can not find tunnel 30376 (refhim=0) Nov 17 10:58:32 frogy-vpn xl2tpd[27083]: network_thread: unable to find call or tunnel to handle packet.  call = 989, tunnel = 30376 Dumping. Nov 17 10:58:32 frogy-vpn xl2tpd[27083]: Can not find tunnel 30376 (refhim=0) Nov 17 10:58:32 frogy-vpn xl2tpd[27083]: network_thread: unable to find call or tunnel to handle packet.  call = 989, tunnel = 30376 Dumping. Nov 17 10:58:32 frogy-vpn xl2tpd[27083]: Can not find tunnel 30376 (refhim=0) Nov 17 10:58:32 frogy-vpn xl2tpd[27083]: network_thread: unable to find call or tunnel to handle packet.  call = 989, tunnel = 30376 Dumping. Nov 17 10:58:32 frogy-vpn xl2tpd[27083]: Can not find tunnel 30376 (refhim=0) Nov 17 10:58:32 frogy-vpn xl2tpd[27083]: network_thread: unable to find call or tunnel to handle packet.  call = 989, tunnel = 30376 Dumping. Nov 17 10:58:34 frogy-vpn xl2tpd[27083]: Can not find tunnel 30376 (refhim=0) Nov 17 10:58:34 frogy-vpn xl2tpd[27083]: network_thread: unable to find call or tunnel to handle packet.  call = 989, tunnel = 30376 Dumping. Nov 17 10:58:36 frogy-vpn xl2tpd[27083]: Can not find tunnel 30376 (refhim=0) Nov 17 10:58:36 frogy-vpn xl2tpd[27083]: network_thread: unable to find call or tunnel to handle packet.  call = 989, tunnel = 30376 Dumping. Nov 17 10:58:36 frogy-vpn xl2tpd[27083]: Can not find tunnel 30376 (refhim=0) Nov 17 10:58:36 frogy-vpn xl2tpd[27083]: network_thread: unable to find call or tunnel to handle packet.  call = 989, tunnel = 30376 Dumping. Nov 17 10:58:36 frogy-vpn xl2tpd[27083]: Can not find tunnel 30376 (refhim=0) Nov 17 10:58:36 frogy-vpn xl2tpd[27083]: network_thread: unable to find call or tunnel to handle packet.  call = 989, tunnel = 30376 Dumping. Nov 17 10:58:37 frogy-vpn xl2tpd[27083]: Can not find tunnel 30376 (refhim=0) Nov 17 10:58:37 frogy-vpn xl2tpd[27083]: network_thread: unable to find call or tunnel to handle packet.  call = 989, tunnel = 30376 Dumping. Nov 17 10:58:37 frogy-vpn xl2tpd[27083]: Can not find tunnel 30376 (refhim=0) Nov 17 10:58:37 frogy-vpn xl2tpd[27083]: network_thread: unable to find call or tunnel to handle packet.  call = 989, tunnel = 30376 Dumping. Nov 17 10:58:37 frogy-vpn xl2tpd[27083]: Can not find tunnel 30376 (refhim=0) Nov 17 10:58:37 frogy-vpn xl2tpd[27083]: network_thread: unable to find call or tunnel to handle packet.  call = 989, tunnel = 30376 Dumping. Nov 17 10:58:37 frogy-vpn xl2tpd[27083]: Can not find tunnel 30376 (refhim=0) Nov 17 10:58:37 frogy-vpn xl2tpd[27083]: network_thread: unable to find call or tunnel to handle packet.  call = 0, tunnel = 30376 Dumping. Nov 17 10:58:37 frogy-vpn xl2tpd[27083]: Can not find tunnel 30376 (refhim=0) Nov 17 10:58:37 frogy-vpn xl2tpd[27083]: network_thread: unable to find call or tunnel to handle packet.  call = 989, tunnel = 30376 Dumping. Nov 17 10:58:38 frogy-vpn xl2tpd[27083]: Can not find tunnel 30376 (refhim=0) Nov 17 10:58:38 frogy-vpn xl2tpd[27083]: network_thread: unable to find call or tunnel to handle packet.  call = 989, tunnel = 30376 Dumping. Nov 17 10:58:39 frogy-vpn xl2tpd[27083]: Can not find tunnel 30376 (refhim=0) Nov 17 10:58:39 frogy-vpn xl2tpd[27083]: network_thread: unable to find call or tunnel to handle packet.  call = 989, tunnel = 30376 Dumping. Nov 17 10:58:39 frogy-vpn xl2tpd[27083]: Can not find tunnel 30376 (refhim=0) Nov 17 10:58:39 frogy-vpn xl2tpd[27083]: network_thread: unable to find call or tunnel to handle packet.  call = 989, tunnel = 30376 Dumping. Nov 17 10:58:40 frogy-vpn xl2tpd[27083]: Can not find tunnel 30376 (refhim=0) Nov 17 10:58:40 frogy-vpn xl2tpd[27083]: network_thread: unable to find call or tunnel to handle packet.  call = 989, tunnel = 30376 Dumping. Nov 17 10:58:40 frogy-vpn xl2tpd[27083]: Can not find tunnel 30376 (refhim=0) Nov 17 10:58:40 frogy-vpn xl2tpd[27083]: network_thread: unable to find call or tunnel to handle packet.  call = 989, tunnel = 30376 Dumping. Nov 17 10:58:41 frogy-vpn xl2tpd[27083]: Can not find tunnel 30376 (refhim=0) Nov 17 10:58:41 frogy-vpn xl2tpd[27083]: network_thread: unable to find call or tunnel to handle packet.  call = 989, tunnel = 30376 Dumping. Nov 17 10:58:43 frogy-vpn xl2tpd[27083]: Can not find tunnel 30376 (refhim=0) Nov 17 10:58:43 frogy-vpn xl2tpd[27083]: network_thread: unable to find call or tunnel to handle packet.  call = 989, tunnel = 30376 Dumping. Nov 17 10:58:43 frogy-vpn xl2tpd[27083]: Can not find tunnel 30376 (refhim=0) Nov 17 10:58:44 frogy-vpn xl2tpd[27083]: network_thread: unable to find call or tunnel to handle packet.  call = 989, tunnel = 30376 Dumping. Nov 17 10:58:44 frogy-vpn xl2tpd[27083]: Can not find tunnel 30376 (refhim=0) Nov 17 10:58:44 frogy-vpn xl2tpd[27083]: network_thread: unable to find call or tunnel to handle packet.  call = 989, tunnel = 30376 Dumping. Nov 17 10:58:44 frogy-vpn xl2tpd[27083]: Can not find tunnel 30376 (refhim=0) Nov 17 10:58:44 frogy-vpn xl2tpd[27083]: network_thread: unable to find call or tunnel to handle packet.  call = 989, tunnel = 30376 Dumping. Nov 17 10:58:44 frogy-vpn xl2tpd[27083]: Can not find tunnel 30376 (refhim=0) Nov 17 10:58:44 frogy-vpn xl2tpd[27083]: network_thread: unable to find call or tunnel to handle packet.  call = 989, tunnel = 30376 Dumping. Nov 17 10:58:45 frogy-vpn xl2tpd[27083]: Can not find tunnel 30376 (refhim=0) Nov 17 10:58:45 frogy-vpn xl2tpd[27083]: network_thread: unable to find call or tunnel to handle packet.  call = 989, tunnel = 30376 Dumping. Nov 17 10:58:46 frogy-vpn xl2tpd[27083]: Can not find tunnel 30376 (refhim=0) Nov 17 10:58:46 frogy-vpn xl2tpd[27083]: network_thread: unable to find call or tunnel to handle packet.  call = 989, tunnel = 30376 Dumping. Nov 17 10:58:46 frogy-vpn xl2tpd[27083]: Can not find tunnel 30376 (refhim=0) Nov 17 10:58:46 frogy-vpn xl2tpd[27083]: network_thread: unable to find call or tunnel to handle packet.  call = 989, tunnel = 30376 Dumping. Nov 17 10:58:46 frogy-vpn xl2tpd[27083]: Can not find tunnel 30376 (refhim=0) Nov 17 10:58:46 frogy-vpn xl2tpd[27083]: network_thread: unable to find call or tunnel to handle packet.  call = 989, tunnel = 30376 Dumping. Nov 17 10:58:47 frogy-vpn xl2tpd[27083]: Can not find tunnel 30376 (refhim=0) Nov 17 10:58:47 frogy-vpn xl2tpd[27083]: network_thread: unable to find call or tunnel to handle packet.  call = 989, tunnel = 30376 Dumping. Nov 17 10:58:47 frogy-vpn xl2tpd[27083]: Can not find tunnel 30376 (refhim=0) Nov 17 10:58:47 frogy-vpn xl2tpd[27083]: network_thread: unable to find call or tunnel to handle packet.  call = 989, tunnel = 30376 Dumping. Nov 17 10:58:47 frogy-vpn xl2tpd[27083]: Can not find tunnel 30376 (refhim=0) Nov 17 10:58:47 frogy-vpn xl2tpd[27083]: network_thread: unable to find call or tunnel to handle packet.  call = 0, tunnel = 30376 Dumping. Nov 17 10:58:49 frogy-vpn xl2tpd[27083]: Can not find tunnel 30376 (refhim=0) Nov 17 10:58:49 frogy-vpn xl2tpd[27083]: network_thread: unable to find call or tunnel to handle packet.  call = 989, tunnel = 30376 Dumping. Nov 17 10:58:49 frogy-vpn xl2tpd[27083]: Can not find tunnel 30376 (refhim=0) Nov 17 10:58:49 frogy-vpn xl2tpd[27083]: network_thread: unable to find call or tunnel to handle packet.  call = 989, tunnel = 30376 Dumping. Nov 17 10:58:49 frogy-vpn charon: 06[NET] received packet: from (client public IP)[4500] to (server public IP)[4500] (284 bytes) Nov 17 10:58:49 frogy-vpn charon: 06[ENC] parsed QUICK_MODE request 4 [ HASH SA No ID ID NAT-OA NAT-OA ] Nov 17 10:58:49 frogy-vpn charon: 06[IKE] received 250000000 lifebytes, configured 0 Nov 17 10:58:49 frogy-vpn charon: 06[IKE] detected rekeying of CHILD_SA L2TP-PSK-noNAT{363} Nov 17 10:58:49 frogy-vpn charon: 06[ENC] generating QUICK_MODE response 4 [ HASH SA No ID ID NAT-OA NAT-OA ] Nov 17 10:58:49 frogy-vpn charon: 06[NET] sending packet: from (server public IP)[4500] to (client public IP)[4500] (204 bytes) Nov 17 10:58:49 frogy-vpn charon: 10[NET] received packet: from (client public IP)[4500] to (server public IP)[4500] (60 bytes) Nov 17 10:58:49 frogy-vpn charon: 10[ENC] parsed QUICK_MODE request 4 [ HASH ] Nov 17 10:58:49 frogy-vpn charon: 10[IKE] CHILD_SA L2TP-PSK-noNAT{364} established with SPIs cef6277f_i 53c45ede_o and TS (server public IP)/32[udp/l2f] === (client public IP)/32[udp/l2f] Nov 17 10:58:49 frogy-vpn charon: 13[NET] received packet: from (client public IP)[4500] to (server public IP)[4500] (76 bytes) Nov 17 10:58:49 frogy-vpn charon: 13[ENC] parsed INFORMATIONAL_V1 request 2040731558 [ HASH D ] Nov 17 10:58:49 frogy-vpn charon: 13[IKE] received DELETE for ESP CHILD_SA with SPI 54f0dcce Nov 17 10:58:49 frogy-vpn charon: 13[IKE] closing CHILD_SA L2TP-PSK-noNAT{363} with SPIs c09e5a1c_i (11309 bytes) 54f0dcce_o (0 bytes) and TS (server public IP)/32[udp/l2f] === (client public IP)/32[udp/l2f] Nov 17 10:58:50 frogy-vpn xl2tpd[27083]: Can not find tunnel 30376 (refhim=0) Nov 17 10:58:50 frogy-vpn xl2tpd[27083]: network_thread: unable to find call or tunnel to handle packet.  call = 989, tunnel = 30376 Dumping. Nov 17 10:58:50 frogy-vpn xl2tpd[27083]: Can not find tunnel 30376 (refhim=0) Nov 17 10:58:50 frogy-vpn xl2tpd[27083]: network_thread: unable to find call or tunnel to handle packet.  call = 989, tunnel = 30376 Dumping. Nov 17 10:58:52 frogy-vpn xl2tpd[27083]: Can not find tunnel 30376 (refhim=0) Nov 17 10:58:52 frogy-vpn xl2tpd[27083]: network_thread: unable to find call or tunnel to handle packet.  call = 989, tunnel = 30376 Dumping. Nov 17 10:58:52 frogy-vpn xl2tpd[27083]: Can not find tunnel 30376 (refhim=0) Nov 17 10:58:52 frogy-vpn xl2tpd[27083]: network_thread: unable to find call or tunnel to handle packet.  call = 989, tunnel = 30376 Dumping. Nov 17 10:58:53 frogy-vpn xl2tpd[27083]: Can not find tunnel 30376 (refhim=0) Nov 17 10:58:53 frogy-vpn xl2tpd[27083]: network_thread: unable to find call or tunnel to handle packet.  call = 989, tunnel = 30376 Dumping. Nov 17 10:58:53 frogy-vpn xl2tpd[27083]: Can not find tunnel 30376 (refhim=0) Nov 17 10:58:53 frogy-vpn xl2tpd[27083]: network_thread: unable to find call or tunnel to handle packet.  call = 989, tunnel = 30376 Dumping. Nov 17 10:58:53 frogy-vpn xl2tpd[27083]: Can not find tunnel 30376 (refhim=0) Nov 17 10:58:53 frogy-vpn xl2tpd[27083]: network_thread: unable to find call or tunnel to handle packet.  call = 989, tunnel = 30376 Dumping. Nov 17 10:58:53 frogy-vpn xl2tpd[27083]: Can not find tunnel 30376 (refhim=0) Nov 17 10:58:53 frogy-vpn xl2tpd[27083]: network_thread: unable to find call or tunnel to handle packet.  call = 989, tunnel = 30376 Dumping. Nov 17 10:58:54 frogy-vpn xl2tpd[27083]: Can not find tunnel 30376 (refhim=0) Nov 17 10:58:54 frogy-vpn xl2tpd[27083]: network_thread: unable to find call or tunnel to handle packet.  call = 989, tunnel = 30376 Dumping. Nov 17 10:58:56 frogy-vpn xl2tpd[27083]: Can not find tunnel 30376 (refhim=0) Nov 17 10:58:56 frogy-vpn xl2tpd[27083]: network_thread: unable to find call or tunnel to handle packet.  call = 989, tunnel = 30376 Dumping.

My ipsec.conf:

version 2
config setup
    dumpdir=/var/run/pluto/
    nat_traversal=yes
virtual_private=%v4:10.0.0.0/8,%v4:192.168.0.0/16,%v4:172.16.0.0/12,%v6:fd00::/8,%v6:fe80::/10
    force_keepalive=yes
    keep_alive=60

conn L2TP-PSK-noNAT
    authby=secret
    esp=3des-sha1!
    auto=add
    keyingtries=3
    ikelifetime=8h
    keylife=1h
    ike=aes256-sha1,aes128-sha1,3des-sha1
    type=transport
    left=(server public IP)
    leftprotoport=17/1701
    right=%any
    rightprotoport=17/%any
    dpddelay=10
    dpdtimeout=20
    dpdaction=clear

My options.xl2tpd:

require-mschap-v2
ms-dns 8.8.8.8
ms-dns 8.8.4.4
auth
mtu 1200
mru 1000
crtscts
hide-password
modem
name l2tpd
proxyarp
lcp-echo-interval 30
lcp-echo-failure 4

My xl2tpd.conf:

[global]
ipsec saref = yes
saref refinfo = 30

[lns default]
ip range = 172.27.27.2-172.27.27.254
local ip = 172.27.27.1
refuse pap = yes
require authentication = yes
pppoptfile = /etc/ppp/options.xl2tpd
length bit = yes

Please advise what to do to keep the connection alive at all times. I hope the errors in syslog I supplied here point in the right direction for somebody who can read it.

Thank you.

Mek

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