From: sirus MOGHADASIAN (cyrus.mgh@gmail.com)
Date: Thu Aug 23 2007 - 09:04:19 ART
I've just figured it out what happened. I prohibited advertising 6.6.6.6 on
R4 by "area 1 range 6.6.6.6 255.255.255.255 not-advertise" and "forward
address" of LSA of 120.0.0.1 on R5 is 6.6.6.6.
so router has not a path to 6.6.6.6 so it's not gonna install 120.0.0.1 in
it's routing table !!! even though it has 120.0.0.1 LSA.
So solution: area 1 nssa translate type7 suppress-fa on R4.
this solved the problem.
Sirus
area 1
On 8/23/07, sirus MOGHADASIAN <cyrus.mgh@gmail.com> wrote:
>
> By th way ,I see LSA for network 120.0.0.1 in r Database!!! but no route
> in routing table.
>
> On 8/23/07, subodh.rawat@wipro.com <subodh.rawat@wipro.com> wrote:
> >
> >
> > Please paste ur configuration of R4, R1 and R6.
> >
> >
> >
> > Subodh
> >
> > -----Original Message-----
> > From: nobody@groupstudy.com [mailto: nobody@groupstudy.com] On Behalf Of
> > sirus MOGHADASIAN
> > Sent: Thursday, August 23, 2007 3:52 PM
> > To: Cisco certification
> > Subject: OSPF Adv Tech Labs, problem:strange area range command issue
> >
> > I have a simple scenario. (it's diagram is as same as advance
> > technologies lab of IE ,OSPF,NSSA area ABR External prefix Filtering)
> >
> >
> > |-----R4
> > R6 -----| ----frame-Relay ---R5
> > |-----R1
> >
> >
> >
> > R6 connects to R4 and R1 through ethernet segment (area 1)
> > ,and R4 ,R1 ,R5 are connected by frame-relay cloud (R5 hub and R4 ,R1
> > spoke) (area 0)
> >
> >
> > R6 configuration:
> > int loopback ip 6.6.6.6/32 .
> > ip route 120.0.0.1 255.255.255.255 null0
> >
> > router ospf 1
> > redistribute static
> > area 1 nssa
> >
> >
> > when I configure "area 1 range 6.6.6.6 255.255.255.255 not-advertised"
> > on
> > R4 something very strange happens.
> >
> > 6.6.6.6 removed from R5 as expected, but I 120.0.0.1 removed as well
> > !!!
> > and no longer I cannot see 120.0.0.1 as my external route.
> >
> > I configured area 1 as nssa (R1 R4 R6).
> >
> > why my external route disappears????
> >
> > by the way if i do not configure area 1 as nssa every thing works fine
> >
> >
> > thanks
> >
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This archive was generated by hypermail 2.1.4 : Sat Sep 01 2007 - 11:32:12 ART