Re: Manually-set IPv6 default route disappears after 5 minutes

The v6 default route now persists once I killed dhclient, which was
renewing the v4 address every 54 seconds or so due to a short lease
time!

I am unsure why dhclient touches the v6 routing table. Is this an
unwanted side effect when it eventually refreshes the v4 default
gateway, e.g. a bug?