Default route in IETF IPv6
Last week was the IETF meeting in Berlin, which provides a very good IPv6 network. Unfortunately for me there is an issue somewhere in my laptop which result in the IPv6 default route to not be automatically renewed. After multiple IETF meetings having to periodically reboot my laptop, I finally found a workaround. Here’s what the “ip -6 r” command displays:
2001:df8:0:64::/64 dev eth0 proto kernel metric 256 expires 2591894sec
fe80::/64 dev eth0 proto kernel metric 256
default via fe80::64:2 dev eth0 proto ra metric 1024 expires 1694sec
default via fe80::64:3 dev eth0 proto ra metric 1024 expires 1694sec
default via fe80::64:1 dev eth0 proto ra metric 1024 expires 1694sec
And here’s a set of commands to fix the problem:
# ip -6 r del default via fe80::64:1
# ip -6 r del default via fe80::64:2
# ip -6 r del default via fe80::64:3
# ip -6 r add default via fe80::64:1 dev eth0