Cisco Systems Cat3750 ACL debugging
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Subject Author Date
Cat3750 ACL debugging Peter Allgeyer 06-11-07
Posted by Peter Allgeyer on June 11, 2007, 5:16 am
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Hi,

I've made a little ACL for one of my VLANs allowing only special source
hosts to connect to that VLAN:

access-list 2 permit 172.16.0.14
access-list 2 permit 172.16.0.7
access-list 2 permit 172.16.13.0 0.0.0.255
access-list 2 deny   any log

interface Vlan252
 ip address 172.31.252.17 255.255.252.0
 ip access-group 2 in

So far so good. Every five minutes I'm getting an access log telling me:

 %SEC-6-IPACCESSLOGS: list 2 denied 0.0.0.0 5 packets

Now I want to know what's exactly causing this message. I've got a
suspicion, but I'm not sure and src IP of 0.0.0.0 isn't really
meaningful. Is there any way to debug? IP capturing like on a PIX?

BR, PIT
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 copyleft(c) by |   _-_     Linux: The OS people choose without
 Peter Allgeyer | 0(o_o)0   $200,000,000 of persuasion.   -- Mike Coleman
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