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RIP updates not being received by the NetScreen

  [KB7756] Show Article Properties


Summary:
RIP updates being received by the Cisco router, but RIP updates are not being received by the NetScreen
Symptoms:
Event log messages state "RIP Neighbor Down"
Solution:

You will see the log message "rip: neighbor 1.1.1.1 down" if you don't have the appropriate network being advertised through RIP.  In one particular case, the router only had the connected route included in the router statement:

router rip
network 1.1.1.0

 

 However, in this scenario, the router on 1.1.1.1 was directly connected to 1.1.1.254.  Make sure you have the network you want advertised via RIP included in the network statement on the Cisco router.

Example:

router rip
network 1.1.1.0
network 11.11.11.0

In this example, 11.11.11.0/24 will be propagated into the NetScreen.  The relevant route table on the NetScreen would look like this:

NS25-> get route


Dest-Routes for <untrust-vr> (0 entries)
--------------------------------------------------------------------------------
H: Host C: Connected S: Static A: Auto-Exported I: Imported R: RIP P: Permanent
iB: IBGP eB: EBGP O: OSPF E1: OSPF external type 1
E2: OSPF external type 2


Dest-Routes for <trust-vr> (10 entries)
--------------------------------------------------------------------------------
   ID          IP-Prefix      Interface         Gateway   P Pref    Mtr     Vsys
--------------------------------------------------------------------------------
*   2    172.17.254.2/32           eth1         0.0.0.0   H    0      0     Root
*   3      172.30.1.0/24           eth2         0.0.0.0   C    0      0     Root
*   6       1.1.1.254/32           eth3         0.0.0.0   H    0      0     Root
*   5         1.1.1.0/24           eth3         0.0.0.0   C    0      0     Root
*   4      172.30.1.1/32           eth2         0.0.0.0   H    0      0     Root
*   1      172.17.0.0/16           eth1         0.0.0.0   C    0      0     Root
*  13        11.1.1.0/24           eth3         1.1.1.1   R  100      2     Root

 

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