debug ip ospf packet
We'll talk about the OSPF packets first.
To display information about each Open Shortest Path First (OSPF) packet received, use the debug ip ospf packet command in privileged EXEC mode.
The following is sample output from the debug ip ospf packet command:
Router# debug ip ospf packetThe debug ip ospf packet command produces one set of information for each packet received. The output varies slightly depending on which authentication is used. The following is sample output from the debug ip ospf packet command when message digest algorithm 5 (MD5) authentications is used.
OSPF: rcv. v:2 t:1 l:48 rid:184.108.40.206
aid:0.0.0.0 chk:6AB2 aut:0 auk:
Router# debug ip ospf packetBelow describes the significant fields shown in the display.
OSPF: rcv. v:2 t:1 l:48 rid:220.127.116.11
aid:0.0.0.0 chk:0 aut:2 keyid:1 seq:0x0