[c-nsp] 7600 starange issue-urgent

[Tim Pozar]

TCPDUMP and Wireshark is your friend.

At the start run TCPDUMP and see if the sessions are being set up.  Ie. you should see a SYN out and a SYN ACK back. 

See:

	http://www.inetdaemon.com/tutorials/internet/tcp/3-way_handshake.shtml

Tim

On Nov 13, 2012, at 12:56 PM, "Chuck Church" <chuckchurch at gmail.com> wrote:

> Uhh, where to begin....
> 
> Has it ever worked?
> Did something change if it did work at one time?
> Is NAT involved?
> Is ping/traceroute working from the router itself, or from your PC?
> What are you pinging/tracerouting to?
> Does your PC have a valid IP address, gateway, DNS, etc?
> Could it be just a PC problem - hard coded proxy address that isn't reachable, etc, etc...
> 
> Chuck
> 
> -----Original Message-----
> From: cisco-nsp-bounces at puck.nether.net [mailto:cisco-nsp-bounces at puck.nether.net] On Behalf Of zaid
> Sent: Tuesday, November 13, 2012 12:35 PM
> To: cisco-nsp at puck.nether.net
> Subject: [c-nsp] 7600 starange issue-urgent
> 
>  HI
> I can’t browse the internet when connect my pc directly on 7600(ES+20G3CXL
> )7606 SRD3
> The tcp mss 1400 , ping and trcaroute  is OK  but the page doesn’t open Any idea how to troubleshooting this issue 
> 
> 
> ZH
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