From: kym blair (kymblair@hotmail.com)
Date: Fri Feb 28 2003 - 16:46:00 GMT-3
Vicki,
The 3550 will know how to reply to 140.11.12.2 but R4 and R6 won't know how
to find 140.11.12.2, and R2 won't know how to find the 140.10.1.0 network.
As mentioned, the simple solution is to use a common routing protocol on the
3550 and R2 which includes 140.10.x.x and 140.11.x.x.
Another solution is to install a default route on R2 (you said this is not
allowed) or send default-information-originate to R2 from 3550 (that takes
care of R2 finding the 140.10.1.0); going the other way, you could install
NAT on the 3550 so your 140.11.12.2 is accessible to R4, R6, and 3550
through a 140.10.1.X address.
HTH, Kym
>From: "Jonathan V Hays" <jhays@jtan.com>
>Reply-To: "Jonathan V Hays" <jhays@jtan.com>
>To: "'Vickie Choy'" <choyvick@cisco.com>, <ccielab@groupstudy.com>
>Subject: RE: Question on 3550
>Date: Fri, 28 Feb 2003 12:24:15 -0500
>
>Once you assign an IP address to a VLAN you can start thinking of the L3
>switch as a many-ported router. The switch can route between the default
>vlan (vlan 1) and vlan 10 as follows:
>
>R4 140.10.1.4 (vlan 10)
>R6 140.10.1.6 (vlan 10)
>int vlan 10 140.10.1.7 (vlan 10)
> **switch routes between vlan 10 and vlan1**
>int vlan 1 140.11.12.7 (vlan 1)
>R2 140.11.12.2 (vlan 1)
>
>Here's the relevant link in the 3550 documentation.
>
>http://www.cisco.com/univercd/cc/td/doc/product/lan/c3550/12112cea/3550s
>cg/swint.htm#xtocid23
>
>
> > -----Original Message-----
> > From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On
> > Behalf Of Vickie Choy
> > Sent: Friday, February 28, 2003 5:35 AM
> > To: ccielab@groupstudy.com
> > Subject: Question on 3550
> >
> >
> > Hi all,
> > -------------------------------
> > R4-------| port 4 port 2 |-----------R2
> > | 3550 |
> > R6-------| port 6 |
> > -----------------------------------
> >
> > Port 4 and port 6 belong to the same vlan vlan 10. Port 2
> > belong to default vlan. Port 4 and 6 belong to the subnet
> > 140.10.1.0/24, R4 has 140.10.1.4/24 and R6 has 140.10.1.6/24
> > on the Ethernet interface. R2 has no IP address on the interface.
> >
> > Question is to create a command interface 140.10.1.7 on 3550
> > so that R2, R4 and R6 be able to ping to that interface.
> >
> > If I create a SVI "int vlan 10" with ip address 140.10.1.7
> > only R4 and R6 can ping. If I configure an ip address say
> > 140.11.12/24 on the interface of R2, but is not allowed to
> > configured a static route on R2 to point to the 140.10.1.0/24
> > subnet. How to get R6 to be able to ping to the command interface?
> >
> > Appreciate your input.
> >
> > Thanks
> >
> > Vickie
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