From: Nick Shah (nshah@xxxxxxxxxxxxxx)
Date: Wed Jun 12 2002 - 01:27:16 GMT-3
for the first /32
>>135.5.2.2/32 [110/7] via 135.5.100.2, 00:20:31, TokenRing0
put in ip ospf network point-to-point on interface loop0 on R1 ...
For this one...
> O 135.5.34.2/32 [110/6] via 135.5.100.2, 00:20:31, TokenRing0
What is the mask on the other end ?? I think host routes will be created if
the masks are different on either/both ends.
Nick
----- Original Message -----
From: "gary braver" <gbraver@attbi.com>
To: "Ccielab (E-mail)" <ccielab@groupstudy.com>
Sent: Wednesday, June 12, 2002 1:46 PM
Subject: Host specific OSPF routes in table with /24 advertisement
> Stumped (and hopefully not a stupid question)
>
> A quick scan of the R1 config will show all interfaces defined and
> advertised with /24 bit mask. Yet the show IP route on
> R2 - has some ospf entries with 32 bit masks
>
> Why?
>
> Partial Config on router R1 as follows:
>
> interface Loopback0
> ip address 135.5.2.2 255.255.255.0
> !
> interface Serial0.1 multipoint
> ip address 135.5.34.2 255.255.255.0
> ip ospf network point-to-multipoint
> frame-relay map ip 135.5.34.3 103 broadcast
> frame-relay map ip 135.5.34.4 106 broadcast
> !
> interface Serial0.2 point-to-point
> ip address 135.5.42.2 255.255.255.0
> frame-relay interface-dlci 101
> !
> interface TokenRing0
> ip address 135.5.100.2 255.255.255.0
> ring-speed 16
> !
> router ospf 1
> log-adjacency-changes
> network 135.5.2.0 0.0.0.255 area 0
> network 135.5.34.0 0.0.0.255 area 0
> network 135.5.42.0 0.0.0.255 area 0
> network 135.5.100.0 0.0.0.255 area 0
>
> R2 routing table
> Gateway of last resort is not set
>
> 135.5.0.0/16 is variably subnetted, 5 subnets, 2 masks
> O 135.5.2.2/32 [110/7] via 135.5.100.2, 00:20:31, TokenRing0
> C 135.5.8.0/24 is directly connected, Loopback0
> O 135.5.34.2/32 [110/6] via 135.5.100.2, 00:20:31, TokenRing0
> C 135.5.44.0/24 is directly connected, Ethernet0
> C 135.5.100.0/24 is directly connected, TokenRing0
>
> why are the ospf routes no to the /24 network?
>
>
> r2 Routing statements
> all interfaces /24 mask
> router ospf 1
> network 135.5.100.0 0.0.0.255 area 0
> !
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