Hi, I have a problem reaching my ipv6 default router.
# ping6 -c 1 2001:41d0:2:e7ff:ff:ff:ff:ff PING6(56=40+8+8 bytes) 2001:41d0:2:e7c4::1 --> 2001:41d0:2:e7ff:ff:ff:ff:ff ping6: sendmsg: Operation not permitted ping6: wrote 2001:41d0:2:e7ff:ff:ff:ff:ff 16 chars, ret=-1 --- 2001:41d0:2:e7ff:ff:ff:ff:ff ping6 statistics --- 1 packets transmitted, 0 packets received, 100.0% packet loss It is the same issue as posted here : http://lists.freebsd.org/pipermail/freebsd-net/2012-February/031518.html However, I believe the problem Mr Dandy was experiencing was he should have changed his default gateway from: ipv6_defaultrouter="2a01:4f8:61:50c0::1" To: ipv6_defaultrouter="fe80::1%re0" As per Hertzner documentation. http://wiki.hetzner.de/index.php/FreeBSD_installieren/en#Network_Configuration I am not hosted with Hertzner but I have the same broken network configuration and am uncertain of the Correct Fix. I have: ::: /etc/rc.conf ::: ipv6_activate_all_interfaces="YES" ipv6_default_interface="re0" ipv6_network_interfaces="auto" ip6addrctl_policy="ipv6_prefer" ifconfig_re0_ipv6="inet6 2001:41D0:2:E7c4::1 prefixlen 64" ipv6_static_routes="ovhgw default" ipv6_route_ovhgw="2001:41d0:2:e7ff:ff:ff:ff:ff -prefixlen 128 -interface re0" ipv6_route_default="default 2001:41d0:2:e7ff:ff:ff:ff:ff" The default IPv6 router is _outside_ of my assigned /64 prefix, this is why an interface route is set and is configured this way to ensure the interface route is applied before the default IPv6 router is added to the routing table. If I do not do this I will receive an error on boot to say that the default gateway cannot be reached. There is also no firewall in place on the host OS. However this configuration does not work. # ping6 -c 1 2001:41d0:2:e7ff:ff:ff:ff:ff PING6(56=40+8+8 bytes) 2001:41d0:2:e7c4::1 --> 2001:41d0:2:e7ff:ff:ff:ff:ff ping6: sendmsg: Operation not permitted ping6: wrote 2001:41d0:2:e7ff:ff:ff:ff:ff 16 chars, ret=-1 --- 2001:41d0:2:e7ff:ff:ff:ff:ff ping6 statistics --- 1 packets transmitted, 0 packets received, 100.0% packet loss If I do # ifconfig re0 inet6 accept_rtadv It works : # ping6 -c 1 2001:41d0:2:e7ff:ff:ff:ff:ff PING6(56=40+8+8 bytes) 2001:41d0:2:e7c4::1 --> 2001:41d0:2:e7ff:ff:ff:ff:ff 16 bytes from 2001:41d0:2:e7ff:ff:ff:ff:ff, icmp_seq=0 hlim=64 time=4.935 ms --- 2001:41d0:2:e7ff:ff:ff:ff:ff ping6 statistics --- 1 packets transmitted, 1 packets received, 0.0% packet loss round-trip min/avg/max/std-dev = 4.935/4.935/4.935/0.000 ms Alternatively, knowing the Linklayer Address of my default gateway, I could set a static ndp pair : # ifconfig re0 inet6 -accept_rtadv # ndp -s 2001:41d0:2:e7ff:ff:ff:ff:ff 00:05:73:a0:00:00 And it works: # ping6 -c 1 2001:41d0:2:e7ff:ff:ff:ff:ff PING6(56=40+8+8 bytes) 2001:41d0:2:e7c4::1 --> 2001:41d0:2:e7ff:ff:ff:ff:ff 16 bytes from 2001:41d0:2:e7ff:ff:ff:ff:ff, icmp_seq=0 hlim=64 time=3.582 ms --- 2001:41d0:2:e7ff:ff:ff:ff:ff ping6 statistics --- 1 packets transmitted, 1 packets received, 0.0% packet loss round-trip min/avg/max/std-dev = 3.582/3.582/3.582/0.000 ms If I do : # ndp -d 2001:41d0:2:e7ff:ff:ff:ff:ff It stops working again : # ping6 -c 1 2001:41d0:2:e7ff:ff:ff:ff:ff PING6(56=40+8+8 bytes) 2001:41d0:2:e7c4::1 --> 2001:41d0:2:e7ff:ff:ff:ff:ff ping6: sendmsg: Operation not permitted ping6: wrote 2001:41d0:2:e7ff:ff:ff:ff:ff 16 chars, ret=-1 --- 2001:41d0:2:e7ff:ff:ff:ff:ff ping6 statistics --- 1 packets transmitted, 0 packets received, 100.0% packet loss It seems the simple solution is to have re0 ACCEPT_RTADV but I am told that my default gateway does not perform router advertisements. In my own networks I have a static default route for inet6 and I am not required to set any interfaces ACCEPT_RTADV. Can anybody shed some light on the correct configuration? Who is at fault here ? - Me - Hosting - FreeBSD - The universe Cheers, C. -- +---------------------------------------------------------------+ Quidquid latine dictum sit, altum sonatur. ICQ: 112562229 GPG: http://www.konundrum.org/schro.asc
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