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why occurs DHCP errors in a CIsco switch

Hi everybody.

Its possible that we can have 2 DHCP Servers in a single network? how is the method to avoid conflicts? when the leased time expires could be any kind of problem? how can I avoid it?

thanks

What devices you use for DHCP?

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ASKER

Hi. The devices we are using as DHCP are cisco switches 6500. They are sending a conflict message:

Sep 24 08:38:28.249 COL: %DHCPD-4-PING_CONFLICT: DHCP address conflict:
server pinged 172.22.3.125.

This message had appeared with a lot of addresses..

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can I ask why you have two DHCP servers for the same subnet?

ASKER

we configured two DHCP to have redundancy..thanks

ASKER

If we have two DHCP servers, how the servers knows which IP was assigned by the other server to avoid these conflicts?

thanks

regards

how many nodes are we talking about? could you have two different DHCP pools. For example

Pool 1: .100-.150
Pool 2: .151-.200

pdiazq:You have to split the the ranges that re being assigned by the servers.