Publication date: , 2015
Revision A1
89
address of DHCP relay server.
ip dhcp relay information option
Use the ip dhcp relay information option
global configuration command to enable
the DHCP relay information option. Use
the no form of this command to disable
the DHCP relay information option. The
option 82 circuit ID format as
"[vlan_id][module_id][port_no]". The first
four characters represent the VLAN ID,
the fifth and sixth characters are the
module ID(in standalone device it
always equal 0, in stackable device it
means switch ID), and the last two
characters are the port number. For
example, "00030108" means the DHCP
message receive form VLAN ID 3,
switch ID 1, port No 8. And the option 82
remote ID value is equal the switch MAC
address.
15
GLOBAL_CONFIG
ip dhcp relay information policy { drop | keep |
replace }
Use the ip dhcp relay information policy
global configuration command to
configure the DHCP relay information
policy. When DHCP relay information
mode operation is enabled, if the agent
receives a DHCP message that already
contains relay agent information it will
enforce the policy. The 'Replace' policy
is invalid when relay information mode is
disabled.
15
GLOBAL_CONFIG
no ip dhcp relay information policy
Use the ip dhcp relay information policy
global configuration command to restore
the default DHCP relay information
policy.
15
GLOBAL_CONFIG
show ip dhcp pool [<word32>]
0
EXEC
show ip dhcp pool counter [<word32>]
debug EXEC
show ip dhcp excluded-address
0
EXEC
show ip dhcp server binding [ state {allocated |
committed | expired} ] [ type {automatic | manual |
0
EXEC
