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Protect Gateway IP address

hwucnmcorg
Beginner
Beginner

We have a user vlan without DHCP enabled. Every time when customer accidentally put the gateway IP address to his computer as his address, the network went down.

I wonder is there anyway we can protect this gateway from being used by users? Something similar to dhcp snooping? Does DAI work?

Thanks,

Han

1 Accepted Solution

Accepted Solutions

cadet alain
Mentor
Mentor

Hi,

the feature you are looking for is IP source guard which can be used with dhcp snooping or with static IPs:

http://www.cisco.com/en/US/docs/switches/lan/catalyst6500/ios/12.2SX/configuration/guide/ipsrcgrd.html

But you'll have to do this a switch.

Regards.

Alain

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View solution in original post

1 Reply 1

cadet alain
Mentor
Mentor

Hi,

the feature you are looking for is IP source guard which can be used with dhcp snooping or with static IPs:

http://www.cisco.com/en/US/docs/switches/lan/catalyst6500/ios/12.2SX/configuration/guide/ipsrcgrd.html

But you'll have to do this a switch.

Regards.

Alain

Don't forget to rate helpful posts.

Don't forget to rate helpful posts.
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