On Wed, Jul 23, 2008 at 08:02:58PM +0200, Csanyi Pal wrote: > Andrew Sackville-West <andrew@farwestbilliards.com> writes: > > > On Wed, Jul 23, 2008 at 02:35:31PM +0200, Csanyi Pal wrote: > >> Andrei Popescu <andreimpopescu@gmail.com> writes: > >> > >> > On Wed,23.Jul.08, 13:31:13, Csányi Pál wrote: > >> >> I have at home a small LAN with Debian GNU/Linux Etch boxes. > >> >> [snip] > > /sbin/route > > > > when executed on the gateway machine. > > Kernel IP routing table > Destination Gateway Genmask Flags Metric Ref Use Iface > 91.102.231.32 * 255.255.255.240 U 0 0 0 eth2 > 192.168.2.0 * 255.255.255.0 U 0 0 0 eth1 > 192.168.1.0 * 255.255.255.0 U 0 0 0 eth0 > default 46-231-102-91.r 0.0.0.0 UG 0 0 0 eth2 [snip] can I suggest that internet not working is a very vague problem that it could be many things. There have been a few suggestions on what it could be. Try from the bottom up. ssh into the gateway machine. Is it is connected to the internet, try ip connectivity first ping from the gateway machine to the default gateway. try then pinging some other address say for example your isp's dns server, try to just use ip addresses so it will only test ip connectivity if you use names then dns gets involved. No guarantee that your isp's dns servers listen to ping, I like pinging google.com (64.233.167.99) I know they reply, if this is all working then next thing to try from the gateway machine is pinging names, this will test weather the dns is working, its a bit harder to watch, you will need tcpdump. looking at your route table I would suggest something like tcpduump -pni eth2 port 53 or host <insert the isps dns ip address here, the first one in the resolv.conf file> this will show you all the packets leaving via eth2 that are on port 53 (dns) or are destined or have come from you isp's dns server. if this is working from the gateway, try it from one of the remote machines, the tcpdump should be still run on the gateway machine Alex > > -- > Regards, Paul Csanyi > http://www.freewebs.com/csanyi-pal/index.htm > > > -- > To UNSUBSCRIBE, email to debian-user-REQUEST@lists.debian.org > with a subject of "unsubscribe". Trouble? Contact listmaster@lists.debian.org > > -- "It's very important for folks to understand that when there's more trade, there's more commerce." - George W. Bush 04/21/2001 Quebec City, Canada at the Summit of the Americas
Attachment:
signature.asc
Description: Digital signature