DHCP queries and SNMP queries on Collector

[abuzar.siddiqui]

Hi Everyone,

I want to see the DHCP queries and SNMP queries on Collector interface.

How can I see these queries?

Is there any logs through which it can be seen or some CLI to be run on CAS.

Please help me on this and suggest.

Thanks,

Abuzar

[Nicolas Darchis · Accepted solution]

Hi,

a log would be quickly filled if it was giving details about all those packets.

The simplest is to run a tcpdump on the collector.

tcpdump -i eth0 for example

you can use tcpdump --help to get further info.

Hope this helps,

Nicolas

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[abuzar.siddiqui]

Thanx Nicolas for your quick reply.

One more question, How can I monitor the DHCP queries and SNMP queries on collector eth0 per second.

Thanks,

Abuzar

[Nicolas Darchis]

I really don't think you can have this kind of statistics (someone can correct me but I would really be surprised).

You can do stats yourself by taking a tcpdump on the collector and dumping it to a file. You then open the file with Wireshark on your laptop and filter for "bootp" to see dhcp packets and "snmp" to see snmp packets. From there you can easily have the count of each protocol per second.

Nicolas