Assigning multiple IP addresses to an interface

Matthias Scheler

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Dec 21, 2009, 10:53:45 AM12/21/09

to

Hello,

does Cisco IOS support assigning multiple IP addresses (out of
different subnets) to one ethernet interface respectively VLAN
(similar to what *BSD and Linux support)? I'm using IOS 12.4 on
an 877W in case that matters.

Kind regards

--
Matthias Scheler http://zhadum.org.uk/

The Doctor

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Dec 21, 2009, 11:01:06 AM12/21/09

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In article <hgo5m9$962$1...@serpens.de>,

Usualy in 2500, 2600 and 3600 series you can declare your
main IP

ip 192.168.1.1 255.255.255.0

And the rest as secondaries

ip 192.168.2.1 255.255.255.0 secondary .

--
Member - Liberal International This is doc...@nl2k.ab.ca Ici doc...@nl2k.ab.ca
God, Queen and country! Never Satan President Republic! Beware AntiChrist rising!
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Merry Christmas 2009 and Happy New Year 2010

Bob Goddard

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Dec 21, 2009, 12:26:07 PM12/21/09

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Matthias Scheler wrote:

> Hello,
>
> does Cisco IOS support assigning multiple IP addresses (out of
> different subnets) to one ethernet interface respectively VLAN
> (similar to what *BSD and Linux support)? I'm using IOS 12.4 on
> an 877W in case that matters.

Matthias, A&A have an IRC channel which you can get lots of help. There are
a few folk there running 877W's.

--
http://www.mailtrap.org.uk/

Uli Link

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Dec 21, 2009, 1:50:03 PM12/21/09

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Matthias Scheler schrieb:

> Hello,
>
> does Cisco IOS support assigning multiple IP addresses (out of
> different subnets) to one ethernet interface respectively VLAN
> (similar to what *BSD and Linux support)? I'm using IOS 12.4 on
> an 877W in case that matters.
>
> Kind regards
>

Yes, you can assign a lot of IP addresses from different subnets as
secondary IP addresses.

It depends on the IOS Feature set how many VLAN you can bring up on a
870 router. The Advancedsecurity package ony can 1 or 2 VLAN on the
Fastethnert ports.

--
ULi

bod43

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Dec 21, 2009, 9:52:31 PM12/21/09

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On 21 Dec, 17:26, Bob Goddard <num...@1.individual.mailtrap.org.uk>
wrote:

What is A&A?

bod43

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Dec 21, 2009, 9:54:58 PM12/21/09

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On 21 Dec, 16:01, doc...@doctor.nl2k.ab.ca (The Doctor) wrote:
> In article <hgo5m9$96...@serpens.de>,

>
> Matthias Scheler <t...@zhadum.org.uk> wrote:
> > Hello,
>
> >does Cisco IOS support assigning multiple IP addresses (out of
> >different subnets) to one ethernet interface respectively VLAN
> >(similar to what *BSD and Linux support)? I'm using IOS 12.4 on
> >an 877W in case that matters.
>
> > Kind regards
>
> >--
> >Matthias Scheler http://zhadum.org.uk/
>
> Usualy in 2500, 2600 and 3600 series you can declare your
> main IP
>
> ip 192.168.1.1 255.255.255.0
>
> And the rest as secondaries
>
> ip 192.168.2.1 255.255.255.0 secondary .
>

This works in every router IOS.

You can have a lot of secondaries. Possibly, there
are limits on the number of secondaries on some
platforms.

Bob Goddard

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Dec 22, 2009, 4:48:54 AM12/22/09

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bod43 wrote:

Andrews & Arnold, it's his very technically aware ISP.

--
http://www.mailtrap.org.uk/

Matthias Scheler

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Dec 22, 2009, 8:10:17 AM12/22/09

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In article <hgo642$6a6$1...@gallifrey.nk.ca>,

doc...@doctor.nl2k.ab.ca (The Doctor) writes:
> And the rest as secondaries
>
> ip 192.168.2.1 255.255.255.0 secondary .

Yes, that works like a charm.

Thanks a lot