From: mani poopal (mani_ccie@yahoo.com)
Date: Wed Oct 06 2004 - 15:31:33 GMT-3
Hi James,
Thanks for the info. From where we are getting ip address for the tunnel interface(10.1.10.1). Then we are advertising this network in the routing domain and this route is propaged to the rest of the network. Is it ok to come up with an ip address for tunnel interface. Because we shouldn't learn about the tunnel interface itself from the routing protocol(ospf), do we have to advertise it in a different routing protocol, say rip. I am looking through cisco website and could not get good config example for gre/tunnel interface for ospf/rip/eigrp configuration. Any suggestion which books or url is better for this subject. By the way I tried the command you gave me and is not working, from both ABR's I created a tunnel interface and advertised both tunnel interface in area 0.
thanks
Mani
James <james@towardex.com> wrote:
On Wed, Oct 06, 2004 at 06:36:37AM -0700, mani poopal wrote:
> Hi Group,
>
> In the exam if an ospf area is not connected to area 0, you can use virtual link to have the connectivity. It the requirement says not to use virtual link, I know you can achieve the desired result by GRE tunnel. Can any one point me to sampe url for configuration in the cisco website or post a sample config.
Router A:
in tun0
tun so a.a.a.a
tun des b.b.b.b
ip add 10.1.10.1 255.255.255.252
no shut
!
router osp 100
net 10.1.10.0 0.0.0.3 ar 0
!
Router B:
in tun0
tun so b.b.b.b
tun des a.a.a.a
ip add 10.1.10.2 255.255.255.252
no shut
!
router osp 100
net 10.1.10.0 0.0.0.3 ar 0
!
HTH,
-J
-- James Jun TowardEX Technologies, Inc. Technical Lead Network Design, Consulting, IT Outsourcing james@towardex.com Boston-based Colocation & Bandwidth Services cell: 1(978)-394-2867 web: http://www.towardex.com , noc: www.twdx.net
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