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Protect Gateway IP address

hwucnmcorg
Level 1
Level 1

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
VIP Alumni
VIP Alumni

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
VIP Alumni
VIP Alumni

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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