NEC UNIVERGE SV8300 Command Manual page 611

COMMAND CODE TITLE:
FA
NOTE 1: ICMP TYPE used in this feature is as follows.
ICMP CLASSI-
TYPE FICATION
0 Reply Reply to the echo request by executing the
ping command (echo reply).
3 Reply Reply message resulting by the ping request
(error) has not arrived at a destination.
ICMP TYPE=3 is replied if the ping request
is rejected by firewall protection.
And no reply is received if the ping request
cannot arrive at a destination or ping request
is disregarded by firewall protection.
8 Request Request by executing the ping command
(echo request).
11 Reply Reply message resulting by time excess.
(error) The message of packet discard caused by
TTL (Time To Live) becomes 0 during tran-
sit, or the message of time excess caused by
TTL becomes 0 during waiting for lost frag-
ments for re-assembly.
12 Reply Reply message resulting by the IP header
(error) being abnormal or a required option is not
effective.
• By sending ICMP TYPE=8 (ping request) to the destination terminal, you ask whether the terminal is
correctly connected/set or not.
• Receiving ICMP TYPE=0 (ping reply) from the destination terminal means that the terminal is cor-
rectly connected/set.
• Receiving ICMP TYPE=3/11/12 (reply [error]) from the destination terminal means that the terminal
is not correctly connected/set.
IP STATION APPARATUS INFORMATION
GENERAL DESCRIPTION
• Ping reply (ping OK)
• Network unreachable
• Host unreachable
• Protocol unusable
• Port unusable
• Fragmentation failed
• Source routing failed
• Destination network unknown
• Destination host unknown
• Source host isolated from network
• Rejection of destination network
• Rejection of destination host
• Network unreachable for TOS
• Communication administratively prohibited
by filtering
• Host precedence violation
• Precedence cutoff in effect
• Ping request
• TTL becomes 0 during transit
• TTL becomes 0 during waiting for lost frag-
ments for re-assembly.
• IP header abnormal
• Required options are unknown.
3-562
CMFA
MEANING
NOTE 3
Continued on next page
NWA-033623-001 Rev.3.0
91ch3008.fm
NOVEMBER/12/2008