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Forum Replies

  1. “R1 receives an ARP request from R1 who is looking for the IP address of its default gateway and replies with its MAC address.”

    I think the second R1 should be Host A.

  2. Hi Harmit,

    No it won’t, the router requires an interface with a subnet in the range. If it receives any other ARP requests then it will just ignore them.


  3. Hello Ananth!

    MAC address learning that occurs on a switch involves the learning of the MAC addresses that are attached to the specific interface. For example, if interface Fa0/1 is connected to PC1 with MAC Address A:B:C:D:E:F, then this MAC address will be used to populate the MAC address table. The Fa0/1 interface does not need to learn its own MAC address. What happens if interface Fa0/1 is connected to interface Fa0/2 of another switch. Won’t the MAC address of Fa0/2 of that switch be included in the MAC table of the first switch? It depends.

    It is im

    ... Continue reading in our forum

  4. Hello Carlo

    Yes that is correct. In most IOS versions, proxy arp is enabled by default. This will disable it and will prevent the router from responding on behalf of another host.

    I hope this has been helpful!


  5. Hi Rene

    Why I replace Windows 7 in GNS3 as H1, H2 and S1 that do not work?
    Does Windows 7 not support Proxy ARP?
    Could you please tell me.

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