From: Ahmed Al-Ghawas (ghawas@batelco.com.bh)
Date: Sat Nov 30 2002 - 20:54:03 GMT-3
Graciela,
Why would you need the "redistribute static" when you have a "network
133.7.0.0" statement configured on R2?
You only need to redistribute static when you don't have a network statement
that covers the static routes in your routing table
HTH
Ahmed Ali Al-Ghawas
CCIE 10667
----- Original Message -----
From: "Graciela Facelli" <gfacelli@uy.ibm.com>
To: <ccielab@groupstudy.com>
Sent: Saturday, November 30, 2002 10:25 PM
Subject: RIP & Static Routes.
> Hi,
>
> Please, I will appreciate if someone can said me what is wrong...
>
> I have the following network
>
>
> --- R4 ------ R2 ----- R3
>
>
> R2 - R4 are using RIP
> R2 - R3 are using OSPF
>
> With OSPF, R2 is learning routes with mask lenght 22 and 26 and the
R4 -
> R2 link is using mask lenght 24 with the same major net.
>
> At R2 I added static routes that point to OSPF domain with next-hop null 0
> (for routes with /26 lengh mask) or the interface to R3 (for routes with
> lenght mask /22).-
>
> At R2 the configuration looks like
>
>
> router ospf 10
> log-adjacency-changes
> redistribute rip metric 5 subnets
> network 133.7.128.0 0.0.0.255 area 0
>
>
> router rip
> redistribute ospf 10 metric 5
> passive-interface FastEthernet0/0
> network 133.7.0.0
>
> ip route 133.7.30.0 255.255.255.0 Null0
> ip route 133.7.55.0 255.255.255.0 Null0
> ip route 133.7.128.0 255.255.255.0 FastEthernet0/0
> ip route 133.7.129.0 255.255.255.0 FastEthernet0/0
> ip route 133.7.130.0 255.255.255.0 FastEthernet0/0
> ip route 133.7.131.0 255.255.255.0 FastEthernet0/0
>
>
> Without redistribute static command for RIP R4 is receiving the static
> routes.
> That is it right?
>
> I found the following:
>
> Static routes that point to an interface will be advertised via RIP, IGRP,
> and other dynamic routing protocols, regardless of whether redistribute
> static commands were specified for those routing protocols. These static
> routes are advertised because static routes that point to an interface
> are considered in the routing table to be connected and hence lose their
> static nature. However, if you define a static route to an interface that
> is
> not one of the networks defined in a network command, no dynamic routing
> protocols will advertise the route unless a redistribute static
> command is specified for these protocols.
>
>
> Then I think that R4 couldn't receive the statics routes with RIP.
>
> The show ip route of R4 looks like
>
> R4#sh ip route
> Codes: C - connected, S - static, I - IGRP, R - RIP, M - mobile, B - BGP
> D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area
> N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2
> E1 - OSPF external type 1, E2 - OSPF external type 2, E - EGP
> i - IS-IS, L1 - IS-IS level-1, L2 - IS-IS level-2, ia - IS-IS inter
> area
> * - candidate default, U - per-user static route, o - ODR
> P - periodic downloaded static route
>
> Gateway of last resort is not set
>
> R 160.100.0.0/16 [120/5] via 133.7.24.2, 00:00:25, Serial0/1
> 10.0.0.0/28 is subnetted, 1 subnets
> C 10.10.10.0 is directly connected, Loopback2
> 133.7.0.0/24 is subnetted, 10 subnets
> R 133.7.130.0 [120/1] via 133.7.24.2, 00:00:25, Serial0/1
> R 133.7.131.0 [120/1] via 133.7.24.2, 00:00:25, Serial0/1
> R 133.7.128.0 [120/1] via 133.7.24.2, 00:00:25, Serial0/1
> R 133.7.129.0 [120/1] via 133.7.24.2, 00:00:25, Serial0/1
> R 133.7.2.0 [120/1] via 133.7.24.2, 00:00:25, Serial0/1
> C 133.7.24.0 is directly connected, Serial0/1
> R 133.7.30.0 [120/1] via 133.7.24.2, 00:00:25, Serial0/1
> R 133.7.55.0 [120/1] via 133.7.24.2, 00:00:25, Serial0/1
> C 133.7.77.0 is directly connected, FastEthernet0/0
>
> That it is right?
> Thanks a lot. Graciela
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