I'm using Debian Wheezy on a dedicated server which uses IPv4 and IPv6 at the same time.
eth0 Link encap:Ethernet HWaddr 11:11:11:11:11:11 inet adr:188.8.131.52 Bcast:184.108.40.206 Masque:255.255.255.0 adr inet6: fe80::21c:c0ff:feb9:829c/64 Scope:Lien adr inet6: 2001:a100:1:bbbb::1/64 Scope:Global UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:1544 errors:0 dropped:0 overruns:0 frame:0 TX packets:2199 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 lg file transmission:1000 RX bytes:304146 (297.0 KiB) TX bytes:1376282 (1.3 MiB)
(Several minutes later, the RX dropped counter increases.)
I first used the "gateway" keyword, but it didn't work, so I then tried to add the route in the file, but it didn't work either.
auto lo iface lo inet loopback auto eth0 iface eth0 inet static address 220.127.116.11 netmask 255.255.255.0 network 18.104.22.168 broadcast 22.214.171.124 gateway 126.96.36.199 iface eth0 inet6 static address 2001:a100:1:bbbb::1 netmask 64 # gateway 2001:a100:1:bbff:ff:ff:ff:ff up ip -6 route add ::/0 via 2001:a100:1:bbff:ff:ff:ff:ff dev eth0 down ip -6 route del ::/0 via 2001:a100:1:bbff:ff:ff:ff:ff dev eth0
ip -6 route show
These are the routes shown several minutes after rebooting the server.
2001:a100:1:bbbb::/64 dev eth0 proto kernel metric 256 2001:a100:1:bb00::/56 dev eth0 proto kernel metric 256 expires 2591959sec fe80::/64 dev eth0 proto kernel metric 256 default via fe80::224:c3ff:fe84:400 dev eth0 proto ra metric 1024 expires 1759sec default via fe80::224:c3ff:fe84:800 dev eth0 proto ra metric 1024 expires 1759sec
Why isn't my default route taken into account (no matter using keyword
ip -6 route addin the
/etc/network/interfaces, during boot time? Note that if I add the route manually, it works perfectly and I can TX and RX to and from the Internet using IPv6. (The problem is to make it automatic.)
What are those strange kernel routes, that will expire? Do I need them? My server is connected directly to the same network as a rooter (2001:a100:1:bbff:ff:ff:ff:ff), which is itself connected directly to the internet.
ifdown --force eth0; ifup --verbose eth0;
Configuring interface eth0=eth0 (inet) run-parts --verbose /etc/network/if-pre-up.d ip addr add 188.8.131.52/255.255.255.0 broadcast 184.108.40.206 dev eth0 label eth0 ip link set dev eth0 up ip route add default via 220.127.116.11 dev eth0 run-parts --verbose /etc/network/if-up.d run-parts: executing /etc/network/if-up.d/avahi-daemon run-parts: executing /etc/network/if-up.d/bind9 run-parts: executing /etc/network/if-up.d/mountnfs run-parts: executing /etc/network/if-up.d/ntpdate run-parts: executing /etc/network/if-up.d/openssh-server run-parts: executing /etc/network/if-up.d/openvpn run-parts: executing /etc/network/if-up.d/postfix run-parts: executing /etc/network/if-up.d/upstart Configuring interface eth0=eth0 (inet6) run-parts --verbose /etc/network/if-pre-up.d modprobe -q net-pf-10 > /dev/null 2>&1 || true # ignore failure. sysctl -q -e -w net.ipv6.conf.eth0.autoconf=0 ip link set dev eth0 up ip -6 addr add 2001:a100:1:bbbb::1/64 dev eth0 ip -6 route add default via 2001:a100:1:bbff:ff:ff:ff:ff dev eth0 RTNETLINK answers: File exists Failed to bring up eth0.