From: Zouta oxpf (zouta.oxpf@gmail.com)
Date: Fri Jun 03 2005 - 17:54:49 GMT-3
Because R1, R2, and R3 are nssa ( R2 and R3 being the nssa ABRs ), R2
and R3 actually filters the E1 default from getting R1. To make R1
see the default from R6 or R7, here are my suggestions:
1) Make area 1 a normal ospf area.
2) Remove the no-summary keyword from R2 and R3, and make them
generate a default with the default information originate command
towards R1 (into the nssa).
area 1 nssa default-information originate.
HTH
ZO
On 6/3/05, stephen skinner <stephenski@gmail.com> wrote:
> ok .
>
> thanks for that ..
>
> so how do i get R1 to see the default router coming from either R6 or R7 and
> not R2/3
>
> any idea`s
>
> if i need to change the area it`s ok ..j ust need to get it done
>
>
> On 6/3/05, Zouta oxpf <zouta.oxpf@gmail.com> wrote:
> > Steve,
> >
> > 1. From your topology, R1, does not need the NO-SUMMARY keyword,
> > because it is not an ABR.
> > 2. The default route route that R1 is seeing, is the ones generated by
> > R3 and R2 because of the NO-SUMMARY keyword with their nssa config,
> > and since this default is a type 3 LSA (inter-area), it will be
> > preferred to the E1 default coming from R5 or R6 irrespective of the
> > status of R5 or R6.
> >
> > HTH
> > ZO.
> >
> > On 6/3/05, stephen skinner <stephenski@gmail.com> wrote:
> > > guys gere is my senario
> > > r1 --------R3--------------R6
> > > |
> > > ------------R2------------R7
> > > remote router R1... it has two tunnel`s to two central site routers R3
> and
> > > R2
> > > R3 and R2 are lan connected to R6 and R7
> > > R1 OSPF AREA 1 NSSA NO-SUMMARY
> > > R2 OSPF AREA 1 NSSA NO-SUMMARY + OSPF AREA 0
> > > R3 OSPF AREA 1 NSSA NO-SUMM + OSPF AREA 0
> > > R6 OSPF 0 + BGP
> > > R7 OSPF 0 +BGP
> > > so R6/7 are my ASBR`s and R2/R3 are my ABR`s
> > > R2/3/6/7 on lans and connected usign tunnels
> > > R6 and R7 advertise a default route in ospf ...
> > > default-infromation originate type 1
> > > r2 and r3 pick this ok ...
> > > if either r6 or r7 goes offlline then r2/r3 use alternative path..
> > > GREAT
> > > R1...hmm
> > > does not get default route if R7 goes down
> > > R2/3 see the default as O/E1
> > > R1 sees default route as O/IA ????
> > > any idea`s why the default route is bieng seen as internal and not
> external
> > >
> > > there is no DR on the network
> > > TIA steve
> > >
> > >
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