Question about configuring a router

If I have three subnets, connect via a t1 line.

Subnet 1 10.0.2.X 255.255.255.0
Subnet 2 10.0.3.X
Subnet 3 10.0.4.X

The ethernet port IP adrress of each router in the subnets should be configure according to the subnet that the router is in.

Question:

What IP address should be assign to the the serials port of each router?

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Comments

Noods

Answer: An IP of a different subnet.

Reason: Serial ports are a different interface, and therefore a different subnet.

gabilan

Thanks for the answer.

Noods

Glad to help

rossonieri#1

Noods wrote:

Answer: An IP of a different subnet.

Reason: Serial ports are a different interface, and therefore a different subnet.

not really, depends on the purpose. you can configure just local LAN with any kind of interface including serial.

ethernet = 1 shared media or paralel connection, shorter distance.
serial = serial connection, longer distance.

darkuser

isn't it your choice ?
what ip to apply to an interface ?
what about ip address secondary ?

zawhtetaung

as your wish ,but must not same with ethernet subnet.

serial port is another interface of a router not the same port with ethernet