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IP discovery tracking. Cant configure under interface.

I was tasked to re-IP a network and its being done by floor. I need to figure out what iP addresses are connected to ports on each switch. Half the range is being re-numberd while others stay the same. Everything is currently on the same subnet and VLAN so I can differentiate by VLANs. There are over 1000 hosts so tracing mac to ip addresses through "show ip arp" will take entirely too long. I have been using "ip device tracking" on all of the 3750 switches and it works great but I cant configure it on the two 4506-E switches I have. I can configure it globally but the option is not available under the interface. Its running IP-base-12.2(53)SG upgrading to ip services in a week. Has anybody had this issue, or am I missing a command somewhere. I check the configuration guide and its shows that the config is valid for that platform and ios.

BTW: I cant configure it on the core 6513 either its running advancedenterprise12.2 (53)





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