This looks like there's already a problem on my LOCAL-ROUTER, and maybe I'm
looking in the wrong places.
Just testing different combinations I noticed this from a shell on LOCAL-ROUTER
ip -6 addr
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536
inet6 ::1/128 scope host
valid_lft forever preferred_lft forever
5: eth1: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qlen 1000
inet6 2600:####:####:4d09::1/64 scope global
valid_lft forever preferred_lft forever
inet6 fe80::dc32:12af:fe11:fcf2/64 scope link
valid_lft forever preferred_lft forever
8: tun1@NONE: <POINTOPOINT,MULTICAST,NOARP,UP,LOWER_UP> mtu
1500 qlen 100
inet6 2600:####:####:4dff::2/64 scope global
valid_lft forever preferred_lft forever
And like before the ping to the REMOTE-SERVER side of the tunnel works
ping6 -v -c 1 2600:####:####:4dff::1
PING 2600:####:####:4dff::1(2600:####:####:4dff::1) 56 data
bytes
64 bytes from 2600:####:####:4dff::1: icmp_seq=1 ttl=64
time=27.4 ms
--- 2600:####:####:4dff::1 ping statistics ---
1 packets transmitted, 1 received, 0% packet loss, time 0ms
rtt min/avg/max/mdev = 27.480/27.480/27.480/0.000 ms
as long as I don't give it the IP address of the eth1 interface.
But when I do it doesn't get through, just like from the LAN-PC
ping6 -v -c 1 -I 2600:####:####:4d09::1 2600:####:####:4dff::1
PING 2600:####:####:4dff::1(2600:####:####:4dff::1) from
2600:####:####:4d09::1 : 56 data bytes
--- 2600:####:####:4dff::1 ping statistics ---
1 packets transmitted, 0 received, 100% packet loss, time 0ms
And it also fails on the LOCAL-ROUTER side of the OpenVpn tunnel when I include
the IP address.
ping6 -v -c 1 -I 2600:####:####:4d09::1 2600:####:####:4dff::2
PING 2600:####:####:4dff::2(2600:####:####:4dff::2) from
2600:####:####:4d09::1 : 56 data bytes
64 bytes from 2600:####:####:4dff::2: icmp_seq=1 ttl=64
time=0.154 ms
--- 2600:####:####:4dff::2 ping statistics ---
1 packets transmitted, 1 received, 0% packet loss, time 0ms
rtt min/avg/max/mdev = 0.154/0.154/0.154/0.000 ms
It's acting like there's a broken connection between the network the LAN is on
(2600:####:####:4d09::/64) and the network the OpenVPN tunnel is on
(2600:####:####:4dff::/64).
Is that something related to 'neighbor discovery'?
- John
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