Verifying the DHCP Relay Configuration Configuring DHCP Relay
page 22-24 OmniSwitch 6800/6850/9000 Network Configuration Guide March 2008
Verifying the DHCP Relay Configuration
To display information about the DHCP Relay and BOOTP/DHCP, use the show commands listed below.
For more information about the resulting displays from these commands, see the OmniSwitch CLI Refer-
ence Guide. An example of the output for the show ip helper command is also given in “Quick Steps for
Setting Up DHCP Relay” on page 22-4.
show ip helper Displays the current forward delay time, the maximum number of hops,
the forwarding option (standard or AVLAN only), and each of the
DHCP server IP addresses configured. Also displays the current config-
uration status for the DHCP relay agent information option (Option-82)
and DHCP Snooping features.
show ip helper stats Displays the number of packets the DHCP Relay service has received
and transmitted, the number of packets dropped due to forward delay
and maximum hops violations, and the number of packets processed
since the last time these statistics were displayed.
show ip udp relay service Displays the current configuration for UDP services by service name or
by service port number.
show ip udp relay statistics Displays the current statistics for each UDP port relay service. These
statistics include the name of the service, the forwarding VLAN(s) con-
figured for that service, and the number of packets the service has sent
and received.
show ip udp relay destination Displays the VLAN assignments to which the traffic received on the
specified UDP service port is forwarded.
show ip helper dhcp-snooping
vlan
Displays a list of VLANs that have DHCP Snooping enabled and
whether or not MAC address verification and Option-82 data insertion
is enabled for each VLAN.
show ip helper dhcp-snooping
port
Displays the DHCP Snooping trust mode for the port and the number of
packets destined for the port that were dropped due to a DHCP Snoop-
ing violation.
show ip helper dhcp-snooping
binding
Displays the contents of the DHCP Snooping binding table (database).
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