Can a single router eth interface with multiple ips route to itself ?

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May 13th, 2010
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HI guys,

Lets say I have a router with eth0.

I have a switch pluged to it.

eth0 has 2 ip addresses assigned to it and

clients in the switch in subnet 192.168.1.x have DG of the router IP

someone from 192.168.1.x wants to reach another PC plugged to the switch in 172.16.1.x subnet.

is it possible for the router to route back to it's original interface?


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Overall Rating: 5 (1 ratings)
Reza Sharifi Thu, 05/13/2010 - 06:05
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    2017 LAN

Hi Dan,

Yes, it is call router on a stick.  You create one sub-interface for subnet and another one for subnet and do .1q tagging on the router interface with 2 different vlan on the switch.

have a look at this paper for more info:




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