[c-nsp] ip sla monitor/traceroute source

Tuc at T-B-O-H.NET ml at t-b-o-h.net
Sat Jul 14 09:00:19 EDT 2007


Hi,

	I'm having a weird issue. On my router I have :

ip sla monitor 100
 type echo protocol ipIcmpEcho 204.107.90.128 source-interface Ethernet0/0
 timeout 4000
 frequency 10
ip sla monitor schedule 100 life forever start-time now
ip sla monitor 200
 type echo protocol ipIcmpEcho 204.107.90.128 source-interface Ethernet1/0
 timeout 4000
 frequency 10
ip sla monitor schedule 200 life forever start-time now
!         
!         
track 100 rtr 100 reachability
 delay down 10 up 20
!         
track 200 rtr 200 reachability
 delay down 10 up 20

ip route 0.0.0.0 0.0.0.0 192.168.75.1 10 name SEABREEZE track 100
ip route 0.0.0.0 0.0.0.0 192.168.0.1 11 name HUGHES track 200
ip route 0.0.0.0 0.0.0.0 192.168.0.1 251 name HUGHES_FB
ip route 0.0.0.0 0.0.0.0 192.168.75.1 252 name SEABREEZE_FB
!



	What I notice is that they are either BOTH up, or BOTH down at the
same time.  Then I noticed the ping times were almost exactly the same!

C3640-1#sho ip sla mon st
Round trip time (RTT)   Index 100
        Latest RTT: 696 ms
Latest operation start time: 08:53:20.321 EDT Sat Jul 14 2007
Latest operation return code: OK
Number of successes: 35
Number of failures: 35
Operation time to live: Forever

Round trip time (RTT)   Index 200
        Latest RTT: 727 ms
Latest operation start time: 08:53:21.389 EDT Sat Jul 14 2007
Latest operation return code: OK
Number of successes: 35
Number of failures: 35
Operation time to live: Forever

	It should only be this high going over satellite, not wireless.
So I tried a traceroute using "traceroute 204.107.90.128 source e0/0"
and "traceroute 204.107.90.128 source e1/0". I noticed that they both 
appeared to take what appeared to be the default route. 

	Did I follow the directions at http://www.nil.si/ipcorner/SmallSiteMultiHoming/
wrong? Is there something else I need to do to make it go out the
proper interface?

			Thanks, Tuc


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