From: YourPal (dearprudence28@gmail.com)
Date: Wed Feb 27 2008 - 18:20:47 ARST
Hi Experts,
I'm baffled by this issue.
Following the example in the Odom's CCIE R&S Official Exam Certification
Guide book, I did another simple test on a different router, as follows:
R6:
!
interface FastEthernet0/0
ip address 10.1.1.1 255.255.255.0
!
interface FastEthernet0/1
ip address 13.1.1.1 255.255.255.0
!
router rip
version 2
network 13.0.0.0
!
ip classless
ip default-network 10.0.0.0
ip route 10.0.0.0 255.0.0.0 10.1.1.102
!
R6#sh ip ro
Gateway of last resort is 10.1.1.102 to network 10.0.0.0
* 10.0.0.0/8 is variably subnetted, 2 subnets, 2 masks
C 10.1.1.0/24 is directly connected, FastEthernet0/0
S* 10.0.0.0/8 [1/0] via 10.1.1.102
13.0.0.0/24 is subnetted, 1 subnets
C 13.1.1.0 is directly connected, FastEthernet0/1
R6#deb ip rip
RIP protocol debugging is on
R6#
*Feb 28 10:14:11.041: RIP: sending v2 update to 224.0.0.9 via
FastEthernet0/1 (13.1.1.1)
*Feb 28 10:14:11.041: RIP: build update entries - suppressing null update
*Feb 28 10:14:36.821: RIP: sending v2 update to 224.0.0.9 via
FastEthernet0/1 (13.1.1.1)
*Feb 28 10:14:36.821: RIP: build update entries - suppressing null update
R6 just does not advertise the 0.0.0.0/0 route into RIP domain eventho it
has flagged the static route 10.0.0.0/8 as its candidate default network.
Am I running into some kind of bugs? R6 is Cisco 1841 running IOS 12.4(1c).
Appreciate any help.
Thank you.
BR,
Emil
On 2/27/08, YourPal <dearprudence28@gmail.com> wrote:
>
> Hi Group,
>
> I'm facing a problem advertising a default route into RIP using the "ip
> default-network" command. My setup as follows:
>
> R1(s0/0/1)--------
> 131.108.99.0/24--------(s0/2)R3(s0/3)--------161.44.192.0/24--------(s0/0/1)R2
>
>
> R1:
> !
> interface Serial0/0/1
> ip address 131.108.99.1 255.255.255.0
> clockrate 125000
> !
> router rip
> version 2
> network 131.108.0.0
> no auto-summary
> !
> ip classless
> !
>
> R2:
> !
> interface Loopback0
> ip address 198.10.1.1 255.255.255.0
> !
> interface Serial0/0/1
> ip address 161.44.192.2 255.255.255.0
> clockrate 125000
> !
> ip classless
> !
> R3:
> !
> interface Serial0/2
> ip address 131.108.99.3 255.255.255.0
> !
> interface Serial0/3
> ip address 161.44.192.3 255.255.255.0
> !
> router rip
> version 2
> network 131.108.0.0
> no auto-summary
> !
> ip default-network 198.10.1.0
> ip route 198.10.1.0 255.255.255.0 161.44.192.2
> !
> ip classless
> !
>
>
> R3#sh ip ro
> Gateway of last resort is 161.44.192.2 to network 198.10.1.0
>
> 161.44.0.0/24 is subnetted, 1 subnets
> C 161.44.192.0 is directly connected, Serial0/3
> 131.108.0.0/24 is subnetted, 1 subnets
> C 131.108.99.0 is directly connected, Serial0/2
> S* 198.10.1.0/24 [1/0] via 161.44.192.2
>
> R3#deb ip rip
> RIP protocol debugging is on
> *Mar 1 07:10:47.535: RIP: sending v2 update to 224.0.0.9 via Serial0/2 (
> 131.108.99.3)
> *Mar 1 07:10:47.535: RIP: build update entries - suppressing null update
>
> R1#sh ip ro
> Gateway of last resort is not set
>
> 131.108.0.0/24 is subnetted, 1 subnets
> C 131.108.99.0 is directly connected, Serial0/0/1
>
>
>
> I'm expecting R3 to advertise a default route into RIP as a result of the
> "ip default-network" command. However it doesn't. Can anyone tell me what am
> I missing in my configuration?
>
>
>
> Thank you.
>
> BR,
> Emil
This archive was generated by hypermail 2.1.4 : Sat Mar 01 2008 - 16:54:50 ARST