Field Description
• 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 configured. One of the
following is listed:
• 0 - no authentication configured
• 1 - simple authentication configured using the ip ospf
authentication-key command
• 2 - MD5 authentication configured using the ip ospf
message-digest-key command
auk: If the ip ospf authentication-key command is
configured, this field displays the key used.
keyid: If the ip ospf message-digest-key command is
configured, this field 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 field 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 configured for the HELLO
interval.
Open Shortest Path First (OSPFv2 and OSPFv3) 1269