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Troubleshooting Internet connections

Posted on 2011-09-16
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Last Modified: 2012-05-12
I have a cisco 857 router.

Sometimes the bandwidth will shoot up to 100% for long intervals.

is there a way to tell exactly what is coming in and out? I have tried looking at the logging info, but it gives no mention of the size of information etc that is being transfered, just says "external ip to internal ip 1packet"

Also, our connection keeps dropping every now and again, is there a way to find out how long the connection has been established on the 857? I cant seem to find anything.
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Question by:CaptainGiblets
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Expert Comment

by:aamodt
ID: 36548489
show interface , will give you info of how mutch traffic the interface gets "in/out" .
Else you should set a hub after the router and connect a PC and use Wireshark to see traffic between computers on your network.

Thats the best way, then you will also see what source the traffic is comming from.

Regards Aamodt
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by:CaptainGiblets
ID: 36548519
I have interface status, but it only shows the packets in / out and total bandwidth usage.
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aamodt earned 2000 total points
ID: 36548585
I will suggest to install wireshark . and copy all traffic to the client-pc that are running wireshark.

Or try:

show ip sockets
or
show tcp brief
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