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Hello!
I have a problem with a duplicate route entry, when using a pre-installed route
and automatic take-over by the "heartbeat" daemon, which adds an address and
the kernel adds an route automatically.
Maybe anyone has an explanation...
> ip addr
1: lo: <LOOPBACK,UP> mtu 16436 qdisc noqueue
inet 127.0.0.1/8 scope host lo
2: eth0: <BROADCAST,MULTICAST,UP> mtu 1514 qdisc pfifo_fast qlen 1000
inet 10.10.20.100/32 scope global eth0
> ip route
127.0.0.0 dev lo scope link
10.10.20.0/24 dev eth0 scope link
default via 10.10.20.1 dev eth0
- -- Now I add a route for my ha net:
> ip route add 10.100.0.0/24 dev eth0
> ip route
127.0.0.0 dev lo scope link
10.10.20.0/24 dev eth0 scope link
10.100.0.0/24 dev eth0 scope link
default via 10.10.20.1 dev eth0
- -- The 'heartbeat' will add an address on switch-over:
> ip addr add 10.100.0.1/24 brd 10.100.0.255 dev eth0
ip addr
1: lo: <LOOPBACK,UP> mtu 16436 qdisc noqueue
inet 127.0.0.1/8 scope host lo
2: eth0: <BROADCAST,MULTICAST,UP> mtu 1514 qdisc pfifo_fast qlen 1000
inet 10.10.20.100/32 scope global eth0
inet 10.100.0.1/24 brd 10.100.0.255 scope global eth0
> ip route
127.0.0.0 dev lo scope link
10.10.20.0/24 dev eth0 scope link
10.100.0.0/24 dev eth0 scope link
10.100.0.0/24 dev eth0 proto kernel scope link src 10.100.0.1
default via 10.10.20.1 dev eth0
My question is:
Why did the kernel add a duplicate routing entry, shouldn't it notice the
existance and avoid this??
Is this a bug of the kernel?
Regards
Sven Anders
- --
Sven Anders <anders@xxxxxxxxxx> () Ascii Ribbon Campaign
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ANDURAS service solutions AG
Innstraße 71 - 94036 Passau - Germany
Web: www.anduras.de - Tel: +49 (0)851-4 90 50-0 - Fax: +49 (0)851-4 90 50-55
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