Dialer Watch with Dialer Maps. Why does it only work with

From: John Hopkins (ccie1234@hotmail.com)
Date: Wed Aug 06 2003 - 11:44:11 GMT-3


Here is a route table from my lab topology

R2#sir
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

     140.10.0.0/25 is subnetted, 1 subnets
i L2 140.10.1.0 [115/10] via 151.30.26.6, Ethernet0
O E1 198.1.3.0/24 [110/100064] via 151.30.124.1, 00:00:06, Serial0.1
     151.30.0.0/16 is variably subnetted, 23 subnets, 3 masks
O E1 151.30.135.0/24 [110/84] via 151.30.124.1, 00:00:06, Serial0.1
O IA 151.30.44.128/25 [110/113] via 151.30.124.1, 00:00:06, Serial0.1
O 151.30.200.0/25 [110/123] via 151.30.124.1, 00:00:06, Serial0.1
O E1 151.30.10.0/24 [110/200122] via 151.30.124.1, 00:00:06, Serial0.1
C 151.30.12.0/24 is directly connected, BRI0
C 151.30.26.0/24 is directly connected, Ethernet0
O IA 151.30.20.0/24 [110/123] via 151.30.124.1, 00:00:07, Serial0.1
O 151.30.43.0/24 [110/176] via 151.30.124.1, 00:00:07, Serial0.1
O IA 151.30.34.0/24 [110/122] via 151.30.124.1, 00:00:07, Serial0.1
C 151.30.50.0/24 is directly connected, Tunnel10
C 151.30.52.0/24 is directly connected, Loopback300
R 151.30.55.0/24 [120/1] via 151.30.50.5, 00:00:06, Tunnel10
i L2 151.30.66.0/25 [115/10] via 151.30.26.6, Ethernet0
O E1 151.30.100.5/32 [110/84] via 151.30.124.1, 00:00:07, Serial0.1
O 151.30.100.4/32 [110/113] via 151.30.124.1, 00:00:07, Serial0.1
O IA 151.30.100.7/32 [110/123] via 151.30.124.1, 00:00:07, Serial0.1
i L2 151.30.100.6/32 [115/20] via 151.30.26.6, Ethernet0
O 151.30.100.1/32 [110/65] via 151.30.124.1, 00:00:07, Serial0.1
O 151.30.100.3/32 [110/123] via 151.30.124.1, 00:00:07, Serial0.1
C 151.30.100.2/32 is directly connected, Loopback102
O 151.30.124.4/32 [110/112] via 151.30.124.1, 00:00:08, Serial0.1
O 151.30.124.1/32 [110/64] via 151.30.124.1, 00:00:08, Serial0.1
C 151.30.124.0/24 is directly connected, Serial0.1
R2#

I configured Dialer Watch as follows:

dialer watch-list 3 ip 151.30.10.0 255.255.255.0
int bri0
dialer watch-group 3
dialer map ip 151.30.10.0 name R1 broad 5552008
dialer map ip 151.30.10.0 name R1 broad 5552009

plus the usual dialer maps and ISDN config commands on this interface.

This works fine.

When I try to watch any /32 route, or even the /25 routes (describing the
correct network and mask in the dialer watch-list command), dialer watch
sees that the network has disappeared from the route table, but the ISDN
doesn't dial. I'm assuming that this might have something to do with the
dialer map command.

Does this mean that you can only watch a route that meets classful
definitions? Why won't dialer watch work with these routes? I don't
remember reading any such prohibition (athough I remember reading something
about problems with watching /32 routes).

Thanks



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