Hello,
The PDP is set to IPv4+IPv6, and the router gets IPv6 and DNS6 addresses from the mobile network. From the RUTX11 it is possible to ping the DNS6 addresses and other well known servers (yahoo ...). So far so good.
From another device in the network it is possible to ping the IPv6 addresses of the br-lan interface but not the address of the qmimux0 one, the DNS6 ones, the default route doesn't work or IPv6 forwarding is inoperant.
The interfaces have the following IPv6 addresses:
root@lgrrutx:~# ip -6 a
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 state UNKNOWN qlen 1000
inet6 ::1/128 scope host
valid_lft forever preferred_lft forever
12: wwan0: <POINTOPOINT,MULTICAST,NOARP,UP,LOWER_UP> mtu 16382 state UNKNOWN qlen 1000
inet6 fe80::6643:d123:cd42:f0a/64 scope link stable-privacy
valid_lft forever preferred_lft forever
16: br-lan: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 state UP qlen 1000
inet6 2a02:8440:6441:6d18::1/64 scope global noprefixroute
valid_lft forever preferred_lft forever
inet6 fd69:267b:e6f6:10::1/64 scope global noprefixroute
valid_lft forever preferred_lft forever
inet6 fe80::21e:42ff:fe2d:904f/64 scope link
valid_lft forever preferred_lft forever
22: wlan0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 state UP qlen 1000
inet6 fe80::21e:42ff:fe2d:9051/64 scope link
valid_lft forever preferred_lft forever
23: wlan1: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 state UP qlen 1000
inet6 fe80::21e:42ff:fe2d:9052/64 scope link
valid_lft forever preferred_lft forever
24: qmimux0: <POINTOPOINT,MULTICAST,NOARP,UP,LOWER_UP> mtu 1500 state UNKNOWN qlen 1000
inet6 2a02:8440:6441:6d18:7bf7:f333:c406:e78b/64 scope global noprefixroute
valid_lft forever preferred_lft forever
inet6 fe80::7bf7:f333:c406:e78b/64 scope link stable-privacy
valid_lft forever preferred_lft forever
and default routes:
root@lgrrutx:~# ip -6 route show | grep qmimux0
default from 2a02:8440:6441:6d18::/64 via fe80::d0cf:1c46:4440:cb48 dev qmimux0 proto static metric 512 pref medium
fe80::/64 dev qmimux0 proto kernel metric 256 pref medium
ping6 of the global address of qmimux 0 gives:
[root@lgtsn ~]# ping6 -c 1 2a02:8440:6441:6d18:7bf7:f333:c406:e78b
PING 2a02:8440:6441:6d18:7bf7:f333:c406:e78b(2a02:8440:6441:6d18:7bf7:f333:c406:e78b) 56 data bytes
From 2a02:8440:6441:6d18:f694:14c9:a0c4:9742: icmp_seq=1 Destination unreachable: Address unreachable
--- 2a02:8440:6441:6d18:7bf7:f333:c406:e78b ping statistics ---
1 packets transmitted, 0 received, +1 errors, 100% packet loss, time 0ms
The default route going through qmimux0 (fe80::d0cf:1c46:4440:cb48) doesn't appear in the ip -6 addr list, and cannot be modified with a ip -6 route change nor deleted and replaced by the link-local one (fe80::7bf7:f333:c406:e78b) a RTNETLINK error is returned.
Where this fe80::d0cf:1c46:4440:cb48 address comes from ?
I have missed something ?
Regards,