Command Reference Guide

IP Helper Commands
CLI Command Reference
September 2014 Page 553
HP Moonshot Switch Module CLI Command Reference
show ip helper statistics
Use this command to display the number of DHCP and other UDP packets processed and relayed by the UDP
relay agent.
Format
show ip helper statistics
Mode Privileged EXEC
Parameter Description
DHCP client messages
received
The number of valid messages received from a DHCP client. The count is only
incremented if IP helper is enabled globally, the ingress routing interface is up, and the
packet passes a number of validity checks, such as having a TTL>1 and having valid
source and destination IP addresses.
DHCP client messages
relayed
The number of DHCP client messages relayed to a server. If a message is relayed to
multiple servers, the count is incremented once for each server.
DHCP server messages
received
The number of DHCP responses received from the DHCP server. This count only
includes messages that the DHCP server unicasts to the relay agent for relay to the
client.
DHCP server messages
relayed
The number of DHCP server messages relayed to a client.
UDP clients messages
received
The number of valid UDP packets received. This count includes DHCP messages and
all other protocols relayed. Conditions are similar to those for the first statistic in this
table.
UDP clients messages
relayed
The number of UDP packets relayed. This count includes DHCP messages relayed as
well as all other protocols. The count is incremented for each server to which a packet
is sent.
DHCP message hop
count exceeded max
The number of DHCP client messages received whose hop count is larger than the
maximum allowed. The maximum hop count is a configurable value listed in show
bootpdhcprelay. A log message is written for each such failure. The DHCP relay agent
does not relay these packets.
DHCP message with
secs field below min
The number of DHCP client messages received whose secs field is less than the
minimum value. The minimum secs value is a configurable value and is displayed in
show bootpdhcprelay. A log message is written for each such failure. The DHCP relay
agent does not relay these packets.
DHCP message with
giaddr set to local
address
The number of DHCP client messages received whose gateway address, giaddr, is
already set to an IP address configured on one of the relay agent’s own IP addresses.
In this case, another device is attempting to spoof the relay agent’s address. The relay
agent does not relay such packets. A log message gives details for each occurrence.
Packets with expired
TTL
The number of packets received with TTL of 0 or 1 that might otherwise have been
relayed.
Packets that matched
a discard entry
The number of packets ignored by the relay agent because they match a discard relay
entry.