Troubleshooting Internet connections

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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CaptainGibletsAsked:
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aamodtCommented:
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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aamodtCommented:
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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CaptainGibletsAuthor Commented:
I have interface status, but it only shows the packets in / out and total bandwidth usage.
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