Re: Regular DHCP network drop

[Camaleón <noelamac@gmail.com>]

On Wed, 23 Feb 2011 16:18:21 -0800, Dr. Ed Morbius wrote:

(...)
 
> Feb 23 15:09:12 localhost dhclient: Invalid domain list.
                                      ^^^^^^^^^^^^^^^^^^^

You should check if the avobe message is okay (cosmetic error) or can 
indicate a problem.

>     'ip' shows link:
>     2: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast
>     state UP qlen 1000
> 
> 
> ... but no neighbor:
> 
>     $ ip neigh show
>     172.16.0.1 dev eth0  INCOMPLETE

I wonder how relevant for this matter could that be :-?

(i.e., I get no output while querying some computers in the network but I 
can still ping them)

Anyway, have you tried "ip neigh show 172.16.0.1" or "/usr/sbin/arp -n"?

> And route shows my gateway but it's unpingable.

(...)

All seems to be right, I mean, your eth0 adapter is getting all the data 
from dhcp server (ip, netmask, gateway, dns...) so the weird part is that 
it cannot "ping/reach" the gateway. 

Can you explain how is your network configured (firewalls or proxies  
between clients and the gateway...)? Is the gateway another computer or a 
modem/router facility?

Greetings,

-- 
Camaleón