Routing after reconfiguration of interfaces

From: Andreas Höschler (ahoesch@smartsoft.de)
Date: Tue Dec 21 2004 - 13:38:51 EST


Hello all,

I got a few responses in the meanwhile but nothing did the trick so
far. I have changed the ip-address an plumbed up the device. I have
added a default route and can access the machine through the external
interface. But the guy is not routing, inspite of

        /usr/sbin/ndd -set /dev/tcp ip_forwarding 1
        /etc/init.d/inetinit start
        /etc/init.d/inetsvc start

And yes, in.routed is running. I even killed this guy and started it
manually again. No way. Any more ideas?

Thanks a lot!

Regards,

   Andreas

> Make sure IP forwarding is enabled, since 'plumb' could have disabled
> it.
>
> "ndd -get /dev/ip ip_forwarding" --> to determine status;
>
> "ndd -set /dev/ip ip_forwarding 1" --> to enable
>
>
>
>
> -----Original Message-----
> From: sunmanagers-bounces@sunmanagers.org
> [mailto:sunmanagers-bounces@sunmanagers.org] On Behalf Of Andreas
> Hvschler
> Sent: 20 December 2004 20:20
> To: sunmanagers@sunmanagers.org
> Subject: Routing after reconfiguration of interfaces
>
> Dear managers,
>
> I have two machines with two interfaces each. Both machines were
> routing traffic from external interface to the internal one. I had to
> change the external ip-addresses of the machines. I did this like so.
>
> ifconfig dmfe1 down
> ifconfig dmfe1 <new ip-address> broadcast <broadcast> netmask <netmask>
> plumb up
>
> After doing that routing no longer worked. I made sure there is still
> no /etc/defaultrouter and also removed and readded the default route
> (which hasn't changed) but still no success.
>
> In the meanwhile I have managed to get one of the machines back to
> routing although I have no ideas how (I did a reboot, may be this did
> the trick). I haven't rebooted the other machine. How can the
> ip-addresses be changed without the need to reboot the machine. What am
> I missing?
>
> Thanks a lot!
>
> Regards,
>
> Andreas
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> sunmanagers@sunmanagers.org
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