[nSLUG] Eastlink cable modem access

Gerald linux at zdoit.airpost.net
Thu Jan 31 13:27:11 AST 2008


I'm sorry it was not clear before the problem is the IP address of the 
DHCP server that is issuing my address, not with the address I receive.

The IP address I am getting is a valid Eastlink address. The IP address 
issued is the same from both DHCP servers. No problems with getting 
anywhere on the Internet.

I looked at my logs where I sometimes see:

Jan 28 16:22:21 x dhclient: DHCPREQUEST on eth0 to 24.x.x.x port 67
Jan 28 16:22:25 x dhclient: DHCPREQUEST on eth0 to 24.x.x.x port 67
Jan 28 16:22:25 x dhclient: DHCPACK from 24.x.x.x
Jan 28 16:22:25 x dhclient: bound to 24.y.y.y -- renewal in 68428 seconds.

And sometimes something similar to:

Jan 30 17:24:52 x dhclient: DHCPREQUEST on eth0 to 255.255.255.255 port 67
Jan 30 17:24:57 x dhclient: DHCPREQUEST on eth0 to 255.255.255.255 port 67
Jan 30 17:24:57 x dhclient: DHCPACK from 10.6.z.z
Jan 30 17:24:57 x NET: /sbin/dhclient-script : updated /etc/resolv.conf
Jan 30 17:24:57 x dhclient: bound to 24.y.y.y -- renewal in 78329 seconds.

Jon wrote:
> A 10.6.x.x is a private network much like a 192.168 network. It is 
> unroutable which means that any packet on the Internet to or from a 10. 
> IP will be dropped. So, Matt is correct in that you are getting an IP 
> address from device which is issuing private IPs (and performing NAT if 
> you are able to get out onto the internet) and that is almost always a 
> router.
> 
> While I'm relatively new to NS, I can't see a cable modem issuing IPs. 
> Assuming you can reach the outside world, try to traceroute something 
> like google.com <http://google.com> and see what you get. That should 
> illuminate some of your internal network routing.
> 
> Jon
> 
> 
> 
> On Jan 31, 2008 12:36 PM, Matt Chamberlain <chamberlain2007 at gmail.com 
> <mailto:chamberlain2007 at gmail.com>> wrote:
> 
>     Have you started using a router? 10.x.x.x is often associated with
>     routers, I believe.
> 
>     On Thu, Jan 31, 2008 at 12:34 PM, Gerald <linux at zdoit.airpost.net
>     <mailto:linux at zdoit.airpost.net>> wrote:
> 
>         How do I tell if a 10.6.x.x IP address is my Eastlink cable modem?
> 
>         My DHCP addresses now seem to be issued by that instead of the
>         222.x.x.x
>         address.

-- 
Gerald



More information about the nSLUG mailing list