Actually what you say is true for LAN interfaces but not for serial
interfaces. The IOS will allow serial interfaces to be configured
within the same subnet as the following example shows:
Router_D#conf t
Enter configuration commands, one per line. End with CNTL/Z.
R1(config)#int serial1/0
R1(config-if)#ip address 192.168.1.1 255.255.255.240
R1(config-if)#int serial1/1
R1(config-if)#ip address 192.168.1.2 255.255.255.240
R1(config-if)#
Clearly we have two interfaces in the same subnet and no error from IOS.
I would certainly agree that this is not done often. But it is a
possibility for serial interfaces.
Rick
Gert Doering wrote:
>
> Hi,
>
> On Wed, Apr 10, 2002 at 04:07:04PM -0500, Mehta, Phoram wrote:
> > I mean. if i have a 2501 with 1 Ethernet and 2 serial interfaces. is it good
> > or bad to have the ip addresses on the above interfaces from same subnet,
> > say 10.0.0.0?
>
> Easy answer: if it's really the same subnet, the router won't let you
> configure that.
>
> gert
> --
> USENET is *not* the non-clickable part of WWW!
> //www.muc.de/~gert/
> Gert Doering - Munich, Germany gert@greenie.muc.de
> fax: +49-89-35655025 gert.doering@physik.tu-muenchen.de
-- Rick Burts CCIE 4615 CCSI Email: rburts@netcraftsmen.net Chesapeake NetCraftsmen 1290 Bay Dale Drive, #312 443.994.0675 Arnold, MD 21012-2325 WWW: http://www.netcraftsmen.netWith 7 CCIEs on staff Chesapeake NetCraftsmen offers services in network consulting and training. Our services include Network Design, Implementation, Troubleshooting as well as Network Management.
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