Hello!
We found the following problem: after clearing the PF rules, the LDPD daemon
crashes.We use routers on which OpenBSD 6.6 is installed.
We run next commands:
pfctl -Fr
pfctl -Fa
pfctl -f /etc/pf.conf
And then check LDP neighbors and receive:
#ldpctl s n
ldpctl: connect: /var/run/ldpd.sock: Connection refused
After I start the ldpd daemon the neighborhood rises: rcctl start ldpd.
In the logs, we observe the following messages:
Nov 21 03:17:43 router10 ldpd[63978]: label decision engine exiting
Nov 21 03:17:43 router10 ldpd[75262]: route 192.168.1.6/32 vanished before
delete
Nov 21 03:17:43 router10 ldpd[75262]: route 192.168.1.10/32 vanished before
delete
Nov 21 03:17:43 router10 ldpd[75262]: route 192.168.1.16/30 vanished before
delete
Nov 21 03:17:43 router10 ldpd[75262]: route 192.168.1.24/30 vanished before
delete
Nov 21 03:17:43 router10 ldpd[75262]: route 192.168.1.28/30 vanished before
delete
Nov 21 03:17:43 router10 ldpd[75262]: route 2002::/24 vanished before delete
Nov 21 03:17:43 router10 ldpd[75262]: route 2002:7f00::/24 vanished before
delete
Nov 21 03:17:43 router10 ldpd[75262]: route 2002:e000::/20 vanished before
delete
Nov 21 03:17:43 router10 ldpd[75262]: route 2002:ff00::/24 vanished before
delete
Nov 21 03:17:43 router10 ldpd[75262]: kernel routing table decoupled
Nov 21 03:17:43 router10 ldpd[75262]: ldp engine terminated; signal 10
Nov 21 03:17:43 router10 ldpd[75262]: terminating
PF rules for LDP /etc/pf.conf:
# interfaces
gre_if="{gre1 gre2}"
p2p_if="{192.168.0.0/23}"
mpls_if = "{gre1 gre2 lo1 vlan192}"
# QoS
queue root-q on $gre_if bandwidth 107M
queue nc-q parent root-q bandwidth 1024K min 512K
queue be-q parent root-q bandwidth 106M qlimit 1024 default
# ldp
pass in quick on $mpls_if inet proto tcp from $p2p_if to $p2p_if port ldp
pass in quick on $mpls_if inet proto tcp from $p2p_if port ldp to $p2p_if
pass in quick on $mpls_if inet proto udp from $p2p_if port ldp to any port ldp
pass out quick on $mpls_if inet proto udp from $p2p_if port ldp to any port ldp
set queue nc-q set prio 7
pass out quick on $mpls_if inet proto tcp from $p2p_if to $p2p_if port ldp set
queue nc-q set prio 7
pass out quick on $mpls_if inet proto tcp from $p2p_if port ldp to $p2p_if set
queue nc-q set prio 7
LDP config /etc/ldpd.conf :
router-id 192.168.0.1
fib-update yes
transport-preference ipv4
address-family ipv4 {
explicit-null no
keepalive 60
interface vlan192 {
link-hello-holdtime 15
link-hello-interval 5
}
interface gre1 {
link-hello-holdtime 15
link-hello-interval 5
}
interface gre2 {
link-hello-holdtime 15
link-hello-interval 5
}
}
On the previous version of OpenBSD 6.5, there was no such problem.
Can you tell me how to fix the problem?
Email me if you need more information.
