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Community Member

Monitor all internal network traffic?

We have a stack of 3750s for our core switch. I am looking for software to monitor all internal network traffic.

Anyone know of anything?

1 ACCEPTED SOLUTION

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Community Member

Re: Monitor all internal network traffic?

Trippi- I don't believe the 3750's support netflow exports. You could always create an access-list to capture all traffic on the SVI and syslog/grep what your looking for. ;)

ip access-list extended FLOWCAP

permit tcp any range 0 65535 any range 0 65535 log

permit udp any range 0 65535 any range 0 65535 log

4 REPLIES
Community Member

Re: Monitor all internal network traffic?

MRTG, Cacti to monitor bandwidth usage

ntop to monitor traffic patterns and per-protocol break-down.

Community Member

Re: Monitor all internal network traffic?

Will ntop give me session information?

Such as source/destination, etc.?

Community Member

Re: Monitor all internal network traffic?

Trippi- I don't believe the 3750's support netflow exports. You could always create an access-list to capture all traffic on the SVI and syslog/grep what your looking for. ;)

ip access-list extended FLOWCAP

permit tcp any range 0 65535 any range 0 65535 log

permit udp any range 0 65535 any range 0 65535 log

Community Member

Re: Monitor all internal network traffic?

Thats a great idea, thank you.

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