How to disable CDP-4-NATIVE_VLAN_MISMATCH (native vlan mismatch)

Cisco switches support CDP and use it to help us in a number of ways. One of them is to detect native VLAN mismatch between two connected ports. For 99% of the time this is a “good thing to do” ™ but there are some corner cases where this is not what you want. For …

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Routes with greater prefix and Proxy ARP ~= IP Mobility

Inside an Autonomous System, it is possible to move a machine inside a network, keeping its IP address even though it goes to a network segment that doesn’t serve the corresponding Network. Something like this: RouterA ——– Network Segment | Host A (10.1.0.2/24, GW: 10.1.0.1) It is possible to move Host A to another network …

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