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SubjectIs this intended design, or a bug? Missing event for gateway being deleted
From
I'm sorry if this has been discussed before, but my google searches didn't
give me any good hints so:

I'm using rtnetlink for a project and I noticed a non-consistent behavior.
When I tear down (the last) ip address, the default gateway is removed,
but it is not announced on the netlink socket. This can also be verified
using "ip monitor". This is tested with linux kernel version 3.2.6 on ARM.





# ip monitor &
# ip addr add 10.0.0.2/8 dev eth0
2: eth0 inet 10.0.0.2/8 scope global eth0
local 10.0.0.2 dev eth0 table local proto kernel scope host src
10.0.0.2 10.0.0.0/8 dev eth0 proto kernel scope link src 10.0.0.2
broadcast 10.0.0.0 dev eth0 table local proto kernel scope link src
10.0.0.2
broadcast 10.255.255.255 dev eth0 table local proto kernel scope link
src 10.0.0.2
# ip route add via 10.0.1.22
default via 10.0.1.2 dev eth0
# ip addr del 10.0.0.2/8 dev eth0
Deleted 2: eth0 inet 10.0.0.2/8 scope global eth0
Deleted 10.0.0.0/8 dev eth0 proto kernel scope link src 10.0.0.2
Deleted broadcast 10.255.255.255 dev eth0 table local proto kernel
scope link src 10.0.0.2
Deleted broadcast 10.0.0.0 dev eth0 table local proto kernel scope link
src 10.0.0.2
Deleted local 10.0.0.2 dev eth0 table local proto kernel scope host
src 10.0.0.2

(No Deleted default via line here)


Stian Skjelstad





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