04-18-2007 06:43 AM
Hi Guys..
I have a Cisco 2821 with a DSL WIC and normal fast ethernet connection.. im trying to backup the main interface by using dialer-watch on the ethernet.. backup interface isn't good enough cause I can't rely on line protocol..
If I configure dialer-watch on the dialer interface it doesn't kill the dialer, it has no effect whatsoever.. All I wanna know is, is this command supported on DSL at all? or is it only for old style ISDN stuff, i've seen some examples of it being used with DSL and Scott Morris's example on TCP mag,,, but I can't get it to work.. My config is pretty simple..
Interface dialer 1
ip addresses ect..
dialer watch-group 1
!
dialer watch-list 1 ip <tracked route>
Would be great if someone could let me know or offer any assistance.. I do have an alternative however if this works it would be great.... cheers
Tim
04-18-2007 07:47 PM
Hi Tim
You can look at going on for object tracking feature which can help you out to track you ethernet and trigger your dialer..
http://www.cisco.com/en/US/products/ps6350/products_configuration_guide_chapter09186a008042fbeb.html
regds
04-18-2007 11:14 PM
Hi,
I've looked into this, I havn't found a way of triggering a dialer address with object tracking.. the DSL interface needs to be down when the normal interface is working, like it would be if the backup interface command was used, however I havn't figured out a way to do this with object tracking..
Cheers
Tim
04-26-2007 04:23 AM
Hello,
What you need to implement is Reliable Static Routing Backup Using Object Tracking:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios124/124cg/hdia_c/part30/hdbackup.htm
Config Example:
conf t
rtr 1
type echo protocol ipIcmpEcho 172.16.35.1
exit
rtr schedule 1 life forever start-time now
track 123 rtr 1 reachability
exit
access-list 101 permit icmp any host 172.16.35.1 echo
access-list 102 deny icmp host 172.16.35.1 echo-reply any
access-list 102 permit ip any any
interface Serial1/0
ip access-group 102 in
interface Dialer0
ip access-group 102 in
exit
route-map LOCAL permit 10
match ip address 101
set ip next-hop 172.16.35.1
set interface Null0
exit
ip local policy route-map LOCAL
ip route 0.0.0.0 0.0.0.0 172.16.35.1 track 123
ip route 0.0.0.0 0.0.0.0 Serial1/0 254 10
PLS Rate if helpful.
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