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Failover DHCP script

Shawnw4401
Level 1
Level 1

I was wondering if there was a possible script, or configuration, to enable a switch to only do DHCP if the provided link goes down then disable DHCP if that link comes up.

For instance, if Gi1/0/1 reads "%LINK-3-UPDOWN: Interface FastEthernet1/0/48, changed state to down" then turn DHCP on; if Gi1/0/1 reads "%LINK-3-UPDOWN: Interface FastEthernet1/0/48, changed state to up" then turn DHCP off.

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