From: JOSE ANGEL MARTINEZ DE LA VARA (jamartinez@xxxxxxxxxxxxxxxx)
Date: Wed Feb 20 2002 - 07:02:30 GMT-3
Hi,
As far as I know the ARP table in a Cisco router is indexed in the IP
address field. That is that you can have many IP addresses linked to the
same MAC address and that an IP can only be translated to one MAC.
So after using all three addresses your router ARP table would look like
this:
IP address MAC address
165.10.10.100 2200.0001.0001
165.10.10.101 2200.0001.0001
165.10.10.102 2200.0001.0001
There is no configuration needed to make the router do this. And as you can
see, all IP addresses are translated to the same MAC.
It looks simple but the router does by default what you are asked to do.
G.L.
Jose Angel
-----Mensaje original-----
De: Derek Gaff [mailto:DerekG@bootstrap.ie]
Enviado el: miircoles, 20 de febrero de 2002 10:07
Para: ccielab@groupstudy.com
Asunto: Cisco Practical Studies, Multiple MAC Address
Hi there
In the Cisco Press Practical Studies Book, page 1159 under Misc Cisco IOS
Software Configuration there as follows.
A mainframe resides on VLAN 2. It has three IP addresses: 165.10.10.100, 101
and 102. These IP Addresses correspond to a single MAC Address of
2200.0001.0001. Configure the Router R4, to support forwarding traffic to a
single MAC address for all these IP addresses.
Does anybody know were I can get some information on how to configure this
as I have looked around the Cisco web site and cannot find anything on this
(Maybe I am serching for the wrong thing).
Thanks in advance
Cheers
Derek
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