Sure, IP unnumbered is frequently used by ISP's to save address space and
for ease of configuration. Lets say you have a 7513 with 280 T1 customers
on it, that would mean wasting 280 /30 IP blocks just on interface transit,
so why use those IP's if you don't have a specific reason to? That is one
of the bigger applications. You can also use it if you have only one IP
address routed to you and you want to use it for NAT. You can use IP
unnumbered on the serial, assign the ethernet a private IP, use the public
for the NAT pool and map port 23 on the public IP address to port 23 on the
private ethernet IP for telnet access. Hope this is what you were looking
for.
Guy
-----Original Message-----
From: sami natour
To: [EMAIL PROTECTED]
Sent: 9/2/01 4:33 PM
Subject: IP unnumbered [7:18250]
Hello everybody,
I know how to cinfigure IP unumbered but I do not know
any practical scenario that I make use of this
feature.Any body has specific scanrios where I can
use ip unnumbered .
Regards ,
sami
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