Ping and packet loss when ipv6 allow box is checked.
Recently I noticed some network issue with my pfsense box.
When I ping any external IP address or even the box itself, there's some high latency ping coming out of nowhere.
64 bytes from 188.8.131.52: icmp_seq=0 ttl=43 time=23.160 ms
64 bytes from 184.108.40.206: icmp_seq=1 ttl=43 time=23.480 ms
64 bytes from 220.127.116.11: icmp_seq=2 ttl=43 time=23.964 ms
64 bytes from 18.104.22.168: icmp_seq=3 ttl=43 time=64.143 ms
64 bytes from 22.214.171.124: icmp_seq=4 ttl=43 time=25.008 ms
64 bytes from 126.96.36.199: icmp_seq=5 ttl=43 time=24.358 ms
64 bytes from 188.8.131.52: icmp_seq=6 ttl=43 time=22.680 ms
64 bytes from 184.108.40.206: icmp_seq=7 ttl=43 time=24.081 ms
64 bytes from 220.127.116.11: icmp_seq=8 ttl=43 time=212.708 ms
64 bytes from 18.104.22.168: icmp_seq=9 ttl=43 time=23.609 ms
When I uncheck the allow ipv6 box, the issue disappears instantly.
My IPv6 is configured in DHCP6 and I receive a proper ipv6 address from my ISP as well. Ipv6 gateway monitoring is responding correctly.
PING6(56=40+8+8 bytes) 2aXX:2788:XXX:dff4:b3XX:6cf4 –> 2001:4860:4860::8888
16 bytes from 2001:4860:4860::8888, icmp_seq=0 hlim=44 time=53.251 ms
--- 2001:4860:4860::8888 ping6 statistics ---
1 packets transmitted, 1 packets received, 0.0% packet loss
round-trip min/avg/max/std-dev = 53.251/53.251/53.251/0.000 ms
Anyone experiences a similar issue ? I use the lastest Pfsense isssue on an APU2 box.
One ping that is a little higher than the others should not interest you. No problem.