Unicast RPF check!

From: Digital Yemeni (digital.yemeni@gmail.com)
Date: Fri Mar 30 2007 - 06:31:19 ART

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Hi group!

I got strange behavior and hope someone can clarify it for me.
I have the following simple topology:

R1-----------------------------------------R2--------------------------SW1
10.10.10.1 10.10.10.2 192.168.1.2 192.168.1.1

R1 is connected to R2 via Frame-Relay
R2 is connected to SW1

R1 frame-relay interface has RPF check as "ip verify unicast reverse-path "

When R1 pings SW1 interface (192.168.1.1) i get RPF failure! R2 debug shows
the 192.168.1.1 IP comes from the frame-relay interface and thus drop the
traffic as spoofed IP!

Can anyone explain what's going on?

-- 
Best Regards!
Digital, CCIE# to be assigned by Cisco when it collects enough $$ out of me!
:p

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