Friday, 22 February 2013

Network Troubleshooting - Cisco Packet Flow

To be or not to be.
Incoming or Outgoing Packets, sometimes understanding these two subjects are very vital in troubleshooting process.

ip access-list  extended gre-debug-out
permit gre any any log // optional 
permit ip any any log

ip access-list  extended gre-debug-in
permit gre any any log // optional
permit ip any any log

interface GigabitEthernet0/1
ip access-group gre-debug-in in
ip access-group gre-debug-out out

Here it is; 

show ip access-list gre-debug-in

show ip access-list gre-debug-out out

believe me you will like the result..

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