Re: network setup question

[Anand Sivaram <aspnair@gmail.com>]

>if I change the netmask of the server it can no longer talk to the

>router because it is in a different ip network ie 192.168.11.55/22 can't

>talk to 192.168.11.1/24 (you can fake it on linux with iproute - see my

>other answer to this thread).

That does not look correct.  Just to see how it works, I just chaged the netmask of my pc from /24 to /16, it is working

router - 192.168.1.1/255.255.255.0

pc1 - 192.168.1.50/255.255.0.0, gw 192.168.1.1, broadcast 192.168.255.255

This pc1 could reach all other machines on 192.168.1.0/24 network with the above configuration, also it could access internet using 192.168.1.1 as the gateway.

In your example, network 192.168.11.55/22 (netmask 255.255.252.0) means 

192.168.8.0 to 192.168.11.255.  It could very well reach 192.168.11.1.  But on the other hand 192.168.11.1/24 could reach only 192.168.11.0 to 192.168.11.255 machines.