From: Brian Dennis (brian@xxxxxx)
Date: Sat Apr 20 2002 - 10:52:41 GMT-3
OSPF will not send traffic from area 0 across area 1 to get to a network in are
a 0 no matter how much better the cost is. An "O" route will always be preferre
d over a "IA" route. You need to look into using a virtual link or maybe a GRE
tunnel between R2 and R3.
Brian Dennis, CCIE #2210 (R&S/ISP Dial)
---------- Original Message ----------------------------------
From: dwhitley@dynis.com
Reply-To: dwhitley@dynis.com
Date: Fri, 19 Apr 2002 09:07:07 -0400
>Set the bandwidth on the serial links to reflect the real speeds, ospf will
>then choose the correct lowest cost link.
>
>
>-----Original Message-----
>From: Joe Jia [mailto:ellenjjl@rogers.com]
>Sent: Thursday, April 18, 2002 10:56 PM
>To: ccielab@groupstudy.com
>Subject: How to change route from O to IA in OSPF?
>
>
>Hi,
>how to change the path at R2 to R1's ethernet0 from R2's serial0 to its
>ethernet 0?
>I have the case as following: R1,R2,R3 hub-spoke topology. R1 has ethernet0
>and searial 0 at area 0
>R2 has 64k serial0 and 10M ethernet interfaces, s0 in area0, ethernet0 in
>area1
>R3 has T1 serial0 and 10M ethernet interfaces, so in area 0 , ethernet 0
>with
>R2's e0 in area 1
>
>I have the question, how can change R2's route to R1's ethernet0 from R2's
>serial0 to Ethernet0 because this way has a low cost?
>
>O , IA, E1, E2?
>
> 128.10.1.0/24
> ______(e0)
> |
> (area0)
> R1
> |
> (s0) 172.16.1.5/24
> (area0) / \ (area0)
> 64k / \ T1
> / \
> (s0) (s0)
> 172.16.1.6/24 | | 172.16.1.1/24
> R2 R3
> | (e0) | (e0)
> (area1)|________| (area1)
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