Re: routing help
Sorry to be vague, but there was a command I remember once when I had this problem before.
Seems like I had to do a route add in /network/interfaces. Seems like there is some parameter
to an interface that allows you to execute a command after the interface is brought up, and I
had to do a route add . . . . to get it to work.
However, I'm doing a similar thing, on my server and the only difference is that my netmask is
not 255.255.255.255, which I think is incorrect on yours. Maybe it is the fact that your
netmask is not correct? Following are the first two entries in my /etc/network/interfaces, and
it works just fine. If I read your output correctly, your netmask should be a .224 instead of
the .0 I use (since you only have two IP's).
auto eth0
iface eth0 inet static
address 66.17.131.182
netmask 255.255.255.0
network 66.17.131.0
broadcast 66.17.131.255
gateway 66.17.131.1
auto eth0:0
iface eth0:0 inet static
address 66.17.131.183
netmask 255.255.255.0
Of course, I could be 100% wrong, in which case someone here will correct me.
Rod
> Hi,
>
> I have an issue with routing that I just can't figure out.
>
> What I have at the moment is a box set up with an IP and route as
> follows (some of the details have
>
> route -n
> Kernel IP routing table
> Destination Gateway Genmask Flags Metric Ref Use
> Iface
> 203.221.41.11 0.0.0.0 255.255.255.255 UH 0 0 0
> eth0
> 203.220.47.152 0.0.0.0 255.255.255.252 U 0 0 0
> eth0
> 203.221.41.0 0.0.0.0 255.255.255.224 U 0 0 0
> eth0
> 0.0.0.0 203.220.47.153 0.0.0.0 UG 0 0 0
> eth0
>
> eth0 Link encap:Ethernet HWaddr 00:05:1C:0B:48:A8
> inet addr:203.221.41.11 Bcast:203.221.41.31
> Mask:255.255.255.224
>
>
> As can be seen from above the default route is set up to go to a
> gateway on a static route.
>
> What I want to do is add an ip alias to eth0 with an ip address of
> 203.221.41.12 and have it route out through the same gateway.
>
> If I simply do "ifconfig eth0:1 203.221.41.12 netmask 255.255.255.224
> broadcast 203.221.41.3" I can ping the IP address from the machine
> that is on the same switch (e.g. from 203.221.41.1) but I can not ping
> or trace to the ip aliased interface. I have searched around on google
> but can't seem to find what I am doing wrong!
>
> Thanks,
>
>
> --
> Lauchlin
>
>
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