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DHCP snooping, Arp inspect

Posted on 2011-09-15
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Last Modified: 2012-05-12
I have a L2 LAN stack, 3750's.

If I add the following in this order:

Switch(config)# ip dhcp snooping
Switch(config)# ip dhcp snooping vlan 10
Switch(config)# ip arp inspection vlan 10

Port-Channel Trunk
Switch(config-if)# ip dhcp snooping trust
Switch(config-if)# ip arp inspection trust

int gi4/0/2
Switch(config-if)# ip dhcp snooping trust
Switch(config-if)# ip arp inspection trust

Is this safe to do on production device during day.




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Question by:s_coad5
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Soulja earned 500 total points
ID: 36545609
Well considering once you enable dhcp snooping all the ports are untrusted until you trust some of the ports. Otherwise, while I wouldn't recommend entering it during the day, it don't see why it would disrupt anything. The risk is yours to take. I would wait till off hours for any change though. Sometimes things can unexpectedly happen that you don't expect. Better to be safe than sorry.
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by:s_coad5
ID: 36545740
awesome!, thanks
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