OPNsense Forum

Archive => 16.1 Legacy Series => Topic started by: tifredfr on March 23, 2016, 08:49:40 pm

Title: OVH + PPPoE + IPv6 does not work, no route
Post by: tifredfr on March 23, 2016, 08:49:40 pm

Hi,

I try to activate IPv6 on OVH my connection (I turn on IPv6 and the modem in bridge mode).

- On my WAN connection, I activated the IPv6 configuration via DHCP (I tried SLAAC, but the problem is the same ...)
- I tried a few sizes prefix, on / off several of these options (but the problem is the same ...)

I can get: an IPv6 gateway ( fe80::230:88ff:fe04:63c9 ), an IPv6 link-local ( fe80::230:48ff:fe82:dd7 ) but no route.
I get the following error in the logs:

Code: [Select]

opnsense: /usr/local/etc/rc.filter_configure_sync: The command '/sbin/route add -inet6 default fe80::230:88ff:fe04:63c9' returned exit code '1', the output was 'route: writing to routing socket: Network is unreachable add net default: gateway fe80::230:88ff:fe04:63c9 fib 0: Network is unreachable'

And indeed, when I test a ping I get: ping6: UDP connect: No route to host


So es it I who forgot something? Or is there a problem in the code?

Code: [Select]

OPNsense 16.1.8-amd64
FreeBSD 10.2-RELEASE-p14
OpenSSL 1.0.2g 1 Mar 2016
thank you in advance

Title: Re: OVH + PPPoE + IPv6 does not work, no route
Post by: bartjsmit on March 24, 2016, 08:08:04 am

Do you have a rule that allows all IPv6 ICMP on the WAN interface?

Bart...

Title: Re: OVH + PPPoE + IPv6 does not work, no route
Post by: tifredfr on March 24, 2016, 09:07:10 am

Hi,

I have not added a specific rule for IPv6 in the firewall - I tried adding the rule allows all IPv6 ICMP and allows all IPv6 proto. all.

Same problem :

Code: [Select]

Mar 24 09:02:39 opnsense: /usr/local/etc/rc.filter_configure_sync: The command '/sbin/route add -inet6 default fe80::230:88ff:fe04:63c9' returned exit code '1', the output was 'route: writing to routing socket: Network is unreachable add net default: gateway fe80::230:88ff:fe04:63c9 fib 0: Network is unreachable'
Mar 24 09:02:38 configd.py: [2b90f362-1c78-4fe2-a28c-0524395a774e] Reloading filter
Mar 24 09:02:38 configd.py: [4f60c776-a2eb-402e-a544-5d53dd903920] Restarting OpenVPN tunnels/interfaces OVH_DHCP6
Mar 24 09:02:38 configd.py: [e250abcc-5639-40fe-9df7-4ec8fce192aa] Restarting ipsec tunnels
Mar 24 09:02:38 configd.py: [3be4f57b-30c1-4814-bae1-1577f506cfa0] updating dyndns OVH_DHCP6
Mar 24 09:02:31 opnsense: /usr/local/etc/rc.newwanip: The command '/sbin/route add -inet6 default fe80::230:88ff:fe04:63c9' returned exit code '1', the output was 'route: writing to routing socket: Network is unreachable add net default: gateway fe80::230:88ff:fe04:63c9 fib 0: Network is unreachable'
Mar 24 09:02:29 opnsense: /usr/local/etc/rc.newwanip: Creating rrd update script
Mar 24 09:02:29 opnsense: /usr/local/etc/rc.newwanip: ROUTING: setting IPv6 default route to fe80::230:88ff:fe04:63c9%pppoe0

Thx

Title: Re: OVH + PPPoE + IPv6 does not work, no route
Post by: franco on March 25, 2016, 05:08:34 pm

What we've seen a few times was that there was no quick issue of an IPv6 address, which in turn caused the ruleset to assume that IPv6 is off and not add the necessary allow rules for ICMPv6.

The issue here seems to be a bit different though, not being able to acquire the IP from the ISP? Sometimes the ISP can help with tweaks on their side, it wouldn't hurt to ask if they are willing to look at your issue in their infrastructure for clues.

Title: Re: OVH + PPPoE + IPv6 does not work, no route
Post by: tifredfr on March 26, 2016, 10:56:11 pm

Ticket opened at my provider - and I await the response you want about