Yes, provided your ethernet has a valid ip address.
It is usually allocated by your ISP.
For Ex.
your netblock - 202.35.2.0/29
ISP side - their T1 interface 204.208.22.1
ISPside - IP route 202.35.2.0 255.255.255.248 204.208.22.1
your side - T1 interface , S0 unnumbered
your side - Ethernet int, E0 202.35.2.1
Traffic destined for 202.35.2.0/29 from the internet will be routed by your ISP to
your routers S0.
What happens is that your routers S0 grabs your E0 ip address and communicates
based on it.
Hope that helps.
-Apoorva
"ANIL.YADAV" wrote:
> So can I use the command
>
> interface serial 1
> ip unnumbered serial 0
>
> Anil
> so as to assifgn same ip address to the two serial interfaces.
>
> On Tue, 6 Jun 2000, ALI SHEERAZ wrote:
>
> >
> > The "ip unnumbered" configuration command allows you to enable IP processing
> > on a serial interface without assigning it an explicit IP address. This is a
> > good way to conserve network and address space.
> >
> > Consider a class B network subnetted with eight bits. Every interface in the
> > network including the serial lines will require a subnet. Since each serial
> > line has only two nodes, this wastes 252 addresses on each serial line.
> > Here's where IP unnumbered comes in handy. For any point-to-point serial
> > link or point-to-point sub- interface, IP unnumbered lets you borrow the
> > address of some LAN interface to use as a source address for routing updates
> > and packets from that interface. No network is wasted, and precious address
> > space is conserved.
> >
> > IP Unnumbered is used for point-to-point links.
> >
> >
> > Command Syntax
> > ---------------
> >
> > interface Ethernet0
> > ip address 171.68.178.196 255.255.255.192
> > interface Serial1 ip unnumbered Ethernet0
> >
> > router igrp 10 network 171.68.0.0
> >
> >
> > >Hi fellows
> > >could anybody explain to me what "ip unnumbered" command is, and how it is
> > >used?
> > >thanks in advance.
> >
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