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Webcast-Catalyst9k
New Member

Cisco 3750 protection against ip spoofing

Hello,

I was wondering if anything like ip verify unicast reverse-path was available for the C3750 series of switches.

Or if there's any other way to implement ip source checking (other than implementing an ACL per each port or activating source guard which requires a DHCP server and further manual introduction of user data)

3 REPLIES
Silver

Re: Cisco 3750 protection against ip spoofing

think you can use the command "ip verify unicast reverse-path" itself on Catalyst 3750 Switches. check the following link for the command reference :

http://www.cisco.com/en/US/products/sw/iosswrel/ps5187/products_command_reference_chapter09186a008017cf1b.html#wp1094165

zli
New Member

Re: Cisco 3750 protection against ip spoofing

You know I tried and the switch didn't take it. I wonder if 3750 has that feature. (I was running advance image too "advipservicesk9"). If anyone got it to work, please share your commands.

Re: Cisco 3750 protection against ip spoofing

Hi,

Maybe you can try the IP Source Guard feature present in Cisco 3750 to enable fixed workstation to connect to the port. The IP Source Guard can be configured in the Interface Configuration Mode. Please refer to the 3750 Configuration Guide on Cisco.com for more details on how to configure it.

regards,

sridhar.

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