Noel, I've modified my setup from GREv6 to 'traditional' site 2 site. I had a similar but a bit different problem [ traffic not getting encrypted - but simply vanishing in the linux ].
After looking at the routing table I've noticed this very wierd route in the table 220. root@f-nccf-1a-de:/etc# ip -6 route show table 220 unreachable 2a00:c31:1ffe:fff::/64 dev lo proto static metric 1024 error -101 I've got rid of it and now it works. Why strongswan is pushing a bogus ipv6 route? Regards > Date: Wed, 14 Jan 2015 20:23:10 +0100 > From: [email protected] > To: [email protected] > Subject: Re: [strongSwan] ipv6 GRE sent in clear instead of getting encrypted > > > -----BEGIN PGP SIGNED MESSAGE----- > Hash: SHA256 > > Hello Olivier, > > Does the traffic selector cover the IP addresses used in the IPv6 GRE tunnel > configuration? > > Mit freundlichen Grüßen/Regards, > Noel Kuntze > > GPG Key ID: 0x63EC6658 > Fingerprint: 23CA BB60 2146 05E7 7278 6592 3839 298F 63EC 6658 > > Am 14.01.2015 um 08:02 schrieb Olivier PELERIN: > > Any ideas why ipv6 GRE is sent in clear? > > > > ------------------------- > > From: [email protected] > > To: [email protected] > > Date: Fri, 19 Dec 2014 13:27:16 +0100 > > Subject: [strongSwan] ipv6 GRE sent in clear instead of getting encrypted > > > > Hello Strongswan Alias, > > > > I've the following problem: > > > > Trafffic from a remote device is properly decrypted [ transport is GREipv6 > > / overlay is ipv6]. Encrypted packet leave the ubuntu box un-encrypted. > > > > Either xfrm policies and state are looking right. > > > > ip xfrm policy > > src 2b00:d31:e7e4:1b::1:201/128 dst 2b00:c31:e7e2:17::2:12/128 proto gre > > dir fwd priority 1026 > > tmpl src 2b00:d31:e7e4:1b::1:201 dst 2b00:c31:e7e2:17::2:12 > > proto esp reqid 2687 mode tunnel > > src 2b00:d31:e7e4:1b::1:201/128 dst 2b00:c31:e7e2:17::2:12/128 proto gre > > dir in priority 1026 > > tmpl src 2b00:d31:e7e4:1b::1:201 dst 2b00:c31:e7e2:17::2:12 > > proto esp reqid 2687 mode tunnel > > src 2b00:c31:e7e2:17::2:12/128 dst 2b00:d31:e7e4:1b::1:201/128 proto gre > > dir out priority 1026 > > tmpl src 2b00:c31:e7e2:17::2:12 dst 2b00:d31:e7e4:1b::1:201 > > proto esp reqid 2687 mode tunnel > > src 0.0.0.0/0 dst 0.0.0.0/0 > > socket in priority 0 > > src 0.0.0.0/0 dst 0.0.0.0/0 > > socket out priority 0 > > src 0.0.0.0/0 dst 0.0.0.0/0 > > socket in priority 0 > > src 0.0.0.0/0 dst 0.0.0.0/0 > > socket out priority 0 > > src ::/0 dst ::/0 > > socket in priority 0 > > src ::/0 dst ::/0 > > socket out priority 0 > > src ::/0 dst ::/0 > > socket in priority 0 > > src ::/0 dst ::/0 > > socket out priority 0 > > > > root@zg-nccf-1a-hr:/home/localadmin# ip xfrm state > > src 2b00:c31:e7e2:17::2:12 dst 2b00:d31:e7e4:1b::1:201 > > proto esp spi 0xb173226b reqid 2687 mode tunnel > > replay-window 32 flag af-unspec > > auth-trunc hmac(sha1) 0x630d4dae250e28a9dfd1184b20dfd0e33cda1665 96 > > enc cbc(aes) 0x3dc58789ace1be5fccdb4b2c42b3aa23 > > src 2b00:d31:e7e4:1b::1:201 dst 2b00:c31:e7e2:17::2:12 > > proto esp spi 0xccbc90f5 reqid 2687 mode tunnel > > replay-window 32 flag af-unspec > > auth-trunc hmac(sha1) 0xd7e81acb481eb00c2389bdfdc2e7fdc1ca0b6417 96 > > enc cbc(aes) 0x9e7d10c82aa14b562c541482d6b5933b > > > > > > ipsec statusall > > Status of IKE charon daemon (strongSwan 5.1.2, Linux 3.13.0-32-generic, > > x86_64): > > uptime: 7 minutes, since Dec 19 12:12:26 2014 > > malloc: sbrk 2568192, mmap 0, used 358352, free 2209840 > > worker threads: 11 of 16 idle, 5/0/0/0 working, job queue: 0/0/0/0, > > scheduled: 2 > > loaded plugins: charon test-vectors aes rc2 sha1 sha2 md4 md5 random > > nonce x509 revocation constraints pkcs1 pkcs7 pkcs8 pkcs12 pem openssl xcbc > > cmac hmac ctr ccm gcm attr kernel-netlink resolve socket-default stroke > > updown eap-identity addrblock > > Listening IP addresses: > > 2a00:c31:7fe2:17::1:11 > > .... > > 2001::2 > > Connections: > > CSR1000V: %any...2b00:d31:e7e4:1b::1:201 IKEv2 > > CSR1000V: local: [....] uses pre-shared key authentication > > CSR1000V: remote: [....] uses pre-shared key authentication > > CSR1000V: child: 2b00:c31:e7e2:17::2:12/128[gre] === > > 2b00:d31:e7e4:1b::1:201/128[gre] TUNNEL > > Security Associations (1 up, 0 connecting): > > CSR1000V[1]: ESTABLISHED 7 minutes ago, > > 2b00:c31:e7e2:17::2:12[]...2b00:d31:e7e4:1b::1:201[] > > CSR1000V[1]: IKEv2 SPIs: db2eec9fddaea13f_i* 5b0acc0ed25bced5_r, > > pre-shared key reauthentication in 23 hours > > CSR1000V[1]: IKE proposal: > > AES_CBC_128/HMAC_MD5_96/PRF_HMAC_MD5/MODP_1024 > > CSR1000V{1}: INSTALLED, TUNNEL, ESP SPIs: c673e3d6_i 1e5da7b9_o > > CSR1000V{1}: AES_CBC_128/HMAC_SHA1_96, 4512 bytes_i (34 pkts, 333s > > ago), 0 bytes_o, rekeying in 34 minutes > > CSR1000V{1}: 2b00:c31:e7e2:17::2:12/128[gre] === > > 2b00:d31:e7e4:1b::1:201/128[gre] > > root@zg-nccf-1a-hr:/home/localadmin# > > > > conn CSR1000V > > keyexchange=ikev2 > > ikelifetime=1440m > > keylife=60m > > leftauth=psk > > rightauth=psk > > leftid=.... > > rightid=.... > > right=2b00:d31:e7e4:1b::1:201 > > leftsubnet=2b00:c31:e7e2:17::2:12/128[47] > > rightsubnet=2b00:d31:e7e4:1b::1:201/128[47] > > auto=start > > > > I've tried on my lab gentoo machine and there it works. Why GRE is not > > encrypted on this linux box? > > > > Regards, > > > > _______________________________________________ Users mailing list > > [email protected] > > https://lists.strongswan.org/mailman/listinfo/users > > > > > > _______________________________________________ > > Users mailing list > > [email protected] > > https://lists.strongswan.org/mailman/listinfo/users > > -----BEGIN PGP SIGNATURE----- > Version: GnuPG v2 > > iQIcBAEBCAAGBQJUtsIbAAoJEDg5KY9j7GZYCUwP/R5/UK86Ec88qz/7vPHqpb0p > jePO4Zg3jcDPzZbgzZN7oK9yTFhE7+T6oVkL3Vv/7yvB6vlkMumAFhHEdfS3GPlT > p9iDaxbCEVT09GTXz5+gn/eU38L7R7rxb+yfYQNDDFht9hLZWR/1GYFB8edjgH7v > mhPnXS8hRaKmOV6uo4PZczMAaaKCXfwbBeBwE7kV0/hmAFYRmH2EHqgUuQKrGb1c > fsYuZF32tfj+DXG8ndXISjbfW1olsAEYc4cEUuo0FsOGugGa+4tgQ1Ep8btn7jI8 > yiwSStIIXtblQEf7Mk4kZm99QCtcFm2A4sRJAX20fSkVhicCvh5L++m0VSMrh6Q/ > PEg6mqtnaMksRZhjM66vNVdbZ3dEM53TZI2QuKdVYuQvSSW6bcywbhWnmw2cAWcD > 8SXHB2Q4ai4JuQs7S2353gl+Kl7l74XFUJbu77HJjOTx6N786ZDIP+QgNguLGf7Y > pO588dcgxDwnnnrgblW7mDM2EouVoNtGvh9HHCJSJlfJxqlLX08Z4ygbxwZNts9S > MZ64VRT9NsANn1i5vsCBBdvTcSMHyJK528Z5zJ+gaPF0Xe9KBPGfP84wfmlUl+F9 > cEnm2LIXfPulxOKv8cFuCLduXpz98bhykDWWRbqZjpJqBXmugODqRva9CieyI3i2 > GMNbPZ7kSHur41AAKbYF > =w0Gt > -----END PGP SIGNATURE----- > > _______________________________________________ > Users mailing list > [email protected] > https://lists.strongswan.org/mailman/listinfo/users
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