From: Tarun Pahuja (pahujat@gmail.com)
Date: Thu Nov 08 2007 - 06:14:58 ART
Shiran,
Great Job! You spoke to the point.
Tarun
On 11/8/07, shiran guez <shiranp3@gmail.com> wrote:
>
> OSPF is a link state Protocol meaning that all the routers share the same
> DB
> no split horizon is used with OSPF.
>
> you cannot prevent a router to send or accept updates in OSPF, what you
> can
> do is locally on the router of your choice filter routes from being
> inserted
> to the Routing Table using Distribute list in.
>
> Read RFC 2328.
>
> ip split horizon command under the interface actually is referring to RIP
> and not to OSPF.
> for EIGRP there is ip split horizon eigrp <AS>
>
>
>
>
> On Nov 8, 2007 10:30 AM, Ahsan Mohiuddin <ahsan.mohiuddin@yahoo.com>
> wrote:
>
> > hello group,
> >
> > i have routers R1, R3 (FR spokes) connected to Hub R5. R1 is advertising
> > route 155.2.146.0 to R5, but I do not want R5 to send this update to R3.
> > So, I have configured "ip split-horion" under R5's physical interface
> > (subinterfaces not used). But it seems R3 is still learning the route
> from
> > R1:
> >
> > O 155.2.146.0 [110/65] via 155.2.13.1, 00:10:27, Serial1/0
> > [110/65] via 155.2.0.1, 00:10:27, Serial1/1
> >
> >
> > Config of R5
> >
> > interface Serial1/0
> > ip address 155.2.0.5 255.255.255.0
> > encapsulation frame-relay
> > ip split-horizon
> > ip ospf priority 2
> > frame-relay map ip 155.2.0.1 501
> > frame-relay map ip 155.2.0.3 503
> > frame-relay map ip 155.2.0.4 504
> > end
> >
> > Config of R3
> >
> > interface Serial1/1
> > ip address 155.2.0.3 255.255.255.0
> > encapsulation frame-relay
> > ip ospf priority 0
> > serial restart-delay 0
> > no dce-terminal-timing-enable
> > frame-relay map ip 155.2.0.5 305
> > end
> >
> > Config of R1
> >
> > interface Serial1/0
> > ip address 155.2.0.1 255.255.255.0
> > encapsulation frame-relay
> > ip ospf priority 0
> > serial restart-delay 0
> > no dce-terminal-timing-enable
> > frame-relay map ip 155.2.0.5 105
> > end
> >
> >
> > Any idea what i am doing wrong here?
> >
> > Thanks in adv
> > -Ahsan
> >
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>
>
>
> --
> Shiran Guez
> MCSE CCNP NCE1
> http://cciep3.blogspot.com
> http://www.linkedin.com/in/cciep3
>
> _______________________________________________________________________
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This archive was generated by hypermail 2.1.4 : Sat Dec 01 2007 - 06:37:28 ART