Strange IP Problem

[jason985]

I have a strange issue here. The problem is 2 of my machines can’t connect to internet via browsers but I can ping internet addresses. If I manual change the ip address to another ip address it will work fine. We are using private ip’s so I can use another one but the problem continues to happen and I have to keep changing the ip address. Any ideas what is causing this?

Btw: Our local machine are connect via unmanaged switch to Cisco router that routes to the internet.

TIA

 

[gb0mb]

This just made me wonder if there is some sort of utility to do a trace route on a specific port to determine where the traffic is getting to?

Gb0mb

........99.9% User Error........

 

[jason985]

Each branch is connected back to the main brach via p2p T1 for internet access.

 

[burtsbees]

Can you post the PIX config?

Burt

 

[dtrtel]

interface Serial0/0
description Norco-West T1 60DHZX
ip address 192.168.0.8 255.255.255.252

The above IP address violates CIDR subnet boundary.
As likely, do the some of the other subnets in the figure
above depending on their netmasks. If you're using
255.255.255.252 netmask on all the T1 WAN links you would
use something like (avoiding subnet zero):
192.168.0.5 -> 0.6
192.168.0.9 -> 0.10
192.168.0.13 -> 0.14
192.168.0.17 -> 0.18

It would be helpful to see the config on the Main site
router, as well as a "show ip route" look at the routing
table.


--jeff

http://linkedin.com/in/JeffLynch

 

[dtrtel]

Looking at the main router config, the diagram addressing
does not match up (at least for these sore eyes . But
your T1 IP addressing appears to be fine.

But I can see that you don't have a static route for
192.168.10.64/255.255.255.192, nor any routing protocols.
It won't hurt to add this route. Try this on the main router:

ip route 192.168.10.64 255.255.255.192 192.168.0.8 1

--jeff

http://linkedin.com/in/JeffLynch

 

[burtsbees]

Jeff---this still does not address his issue...I know you are just making another suggestion, and I agree.

Burt