[CLUE-Tech] Cisco 678 Configuration

[Randy Arabie]

On Wed, Dec 03, 2003 at 09:27:29PM -0700, David Anselmi wrote:
> Randy Arabie wrote:
> [...]
> > The router doesn't seem to be routing, sort of.  When I connect it to the phone 
> > line it trains and the wan0 port(s) link up with the upstream network.  
> > The "inside" eth0 is configured to the standard class C 192.168.1.1 with the 
> > internal DHCP server configured to dish out IP's.  And, NAT is enabled.  I've 
> > also enabled the telnet server so my ISP's techies could try and help me figure 
> > out why it won't work.
> 
> The bad ARP entries are using multicast addresses (the first byte is 
> odd).  They don't seem normal, I don't get any arp entries in my 678 for 
> its eth0 IP.  So something is broke on the eth0 side of things.  Perhaps 
> hardware or cables, though that seems unlikely.

Yeah.  I think those bad ARP entries are the problem.  It
would be really interesting to know what's causing that.

> Did you check your filters and make sure they're correct?  Looks like 
> they're not set.

Filters on the 678?  I had filtering disabled.

> IIRC, you can erase the config with "set nvram erase".  If you want to 
> update the cbos I think you can do that via the serial port.  Read the 
> docs on Cisco's site.
> 
> Probably erasing and rebuilding will fix it, if you have a good list of 
> steps to make it go.
> 
> The other odd thing I see is that your NAT outside address doesn't seem 
> especially close to your wan0-0 IP (NAT is 216.57.216.237, wan0-0 is 
> 216.57.214.82 on the far end).  That NAT IP shows up in your PPP config too.

I thought that was odd, too.  However, I'm at home and
online using an Actiontec loaner from my ISP.  The wan0-0 is
set up the same way.  My outside IP is the 216.57.216.237
and the other end is 216.57.214.82.

Since the Actiontec is working, I guess it confirms it was
the Cisco, and not some stranges with anything on my LAN or
the WAN between me and the gateway.

> I only have one IP Address line in my PPP config and the IP is 0.0.0.0. 
>   You have two and one looks broken (cut and paste error maybe?)
> 
> Those are my guesses, hope you get it fixed.

When I dropped off the Cisco and talked to the techie today,
it sounded like he was either going to erase the config on
it and start over or flash the IOS with the current version.
-- 

Allons Rouler!

Randy
http://www.arabie.org/