[ILUG] got a dhcp address but no connectivity

[Marek]

Hi,

Thanks for the reply.

Ciaran Johnston wrote:

>Marek said:
>  
>
>>ifconfig shows the ip address and netmask (both in the 10.0.*.* range
>>which is right for the network), though the broadcast address is
>>identical to the ip address (no 255's involved), which is the only odd
>>thing I can see.
>>    
>>
>
>AFAIK this means you are broadcasting to yourself only. Therefore your ARP
>requests ("who has IP x.x.x.x") aren't going anywhere. Hence, no network.
>They should be sent to 10.0.x.255.
>
>  
>
So I've just tried using ifconfig to set the broadcast address for the 
interface. Even with an ip address of 10.0.9.240 and a broadcast address 
of 10.0.9.255 I can't ping anyone. I thought maybe restarting the 
network might help, but of course that just resets the broadcast 
address, and taking eth1 down and then bringing it back up doesn't help 
either.

On Padraig's advice, I've tried setting netmask and a default route 
(which was also missing) manually, but with no success.

It's all academic at this point, as I've left this late and won't be 
trying to do this again for many weeks. Thanks for the pointers,

M.