udp-echo

From: CCIE3000 (ccie3000@googlemail.com)
Date: Thu Jun 19 2008 - 03:51:35 ART

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Let's try again as it didn't go through the first time.

Hi Guys,

I was doing something earlier with multicast helper maps.

R6 g0/1.26 is connected to R2 fa0/0.26, helper map on R2 interface taking
broadcast and sending as multicast.

Now, I've configured no ip route-cache, no ip mroute-cache and even disabled
CEF.

I'm trying to test from R6 using SLA configured with udp-echo. Problem is as
per the workbook it shows udp-echo with destination 255.255.255.255, which I
can't configure on R6 (won't allow broadcast), I've tried 174.1.26.255,
First I was having an encapsulation problem on R6 so I configured a static
arp pointing to R2 fa0/0.26 for the address 174.1.26.255. Okay debug ip
packet detail shows that it's now getting to R2 but R2 sends it back out
fa0/0.26 and the debug ip mpacket detail doesn't show it beging send as a
Multicast to the next hop.

I know my configs are okay as I've double checked them, just can't find a
way to prove it by testing.

Any ideas?

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