Users Guide

Field Description
• 1 - Hello packet
• 2 - database description
• 3 - link state request
• 4 - link state update
• 5 - link state acknowledgement
l: Displays the packet length.
rid: Displays the OSPF router ID.
aid: Displays the Autonomous System ID.
chk: Displays the OSPF checksum.
aut: States if OSPF authentication is congured. One of the following is listed:
• 0 - no authentication congured
• 1 - simple authentication congured using the ip ospf authentication-key
command
• 2 - MD5 authentication congured using the ip ospf message-digest-key
command
auk: If the ip ospf authentication-key command is congured, this eld displays the
key used.
keyid: If the ip ospf message-digest-key command is congured, this eld displays the
MD5 key
to: Displays the interface to which the packet is intended.
dst: Displays the destination IP address.
netmask: Displays the destination IP address mask.
pri: Displays the OSPF priority
N, MC, E, T Displays information available in the Options eld of the HELLO packet:
• N + (N-bit is set)
• N - (N-bit is not set)
• MC+ (bit used by MOSPF is set and router is able to forward IP multicast packets)
• MC- (bit used by MOSPF is not set and router cannot forward IP multicast packets)
• E + (router is able to accept AS External LSAs)
• E - (router cannot accept AS External LSAs)
• T + (router can support TOS)
• T - (router cannot support TOS)
hi: Displays the amount of time congured for the HELLO interval.
di: Displays the amount of time congured for the DEAD interval.
dr: Displays the IP address of the designated router.
bdr: Displays the IP address of the Border Area Router.
Example
Dell# debug ip ospf 1 packet
OSPF process 90, packet debugging is on
1036 Open Shortest Path First (OSPFv2 and OSPFv3)