Packet capture strange issue !

Unanswered Question
Aug 3rd, 2009

Dear All ,

I have 2 routers connected over wimax link. I decided to capture packets between their WAN IPs. this is my configuration

access-list 114 per icmp host host echo

access-list 114 per icmp host host echo-reply

monitor capture buffer holdpackets

monitor capture buffer holdpackets filter access-list 114

monitor capture point ip cef icmp all both

monitor capture point associate icmp holdpackets

monitor capture point start icmp

Now when i try to ping from to, this is the following result


Type escape sequence to abort.

Sending 5, 100-byte ICMP Echos to, timeout is 2 seconds:


Success rate is 100 percent (5/5), round-trip min/avg/max = 52/80/140 ms

R1#sh monitor capture buffer all parameters

Capture buffer holdpackets (linear buffer)

Buffer Size : 262144 bytes, Max Element Size : 68 bytes, Packets : 0

Allow-nth-pak : 0, Duration : 0 (seconds), Max packets : 0, pps : 0

Associated Capture Points:

Name : icmp, Status : Active

No match on access-list either

R1#sh access-lists 114

Extended IP access list 114

10 permit icmp host host echo

20 permit icmp host host echo-reply

When i ran debug ip packet 114, i can see the packets going out but why are they not being matched by acl and also not in capture buffer ?

Can someone guide me pls ?

I have this problem too.
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