CTS FOS-3128 Series - Page 42

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3. Enable DHCP/DHCPv6 relay function.
IP DHCP Snooping
Command
Parameter
Description
Switch(config)# ip dhcp
snooping
Enable DHCP/DHCPv6 snooping
function.
Switch(config)# ip dhcp
snooping dhcp-server
[port_list]
[port_list]
Specify DHCP/DHCPv6 server trust
port(s).
Switch(config)# ip dhcp
snooping dhcp-server-ip
Globally enable DHCP/DHCPv6 server
trust IP/IPv6 address.
Switch(config)# ip dhcp
snooping dhcp-server-ip [1-
4] ip-address [A.B.C.D |
A:B:C:D:E:F:G:H]
[1-4]
Specify DHCP/DHCPv6 server trust
IP/IPv6 address number.
[A.B.C.D |
A:B:C:D:E:F:G:H]
Specify DHCP/ DHCPv6 server trust IP/
IPv6 address.
Switch(config)# ip dhcp
snooping initiated [0-9999]
[0-9999]
Specify the DHCP/DHCPv6 snooping
Initiated Time value (0~9999 seconds)
that packets might be received.
Switch(config)# ip dhcp
snooping leased [180-
259200]
[180-259200]
Specify the DHCP/DHCPv6 snooping
Leased Time for DHCP clients.
(Range:180~259200 seconds).
Switch(config)# ip dhcp
snooping option
Globally enable DHCP Option 82 /
DHCPv6 Option 37 relay agent.
Switch(config)# ip dhcp
snooping remote
Enable DHCP Option 82 / DHCPv6
Option 37 Manual Remote Id.
Switch(config)# ip dhcp
snooping remote formatted
Enable the Formatted Option 82 /
DHCPv6 Option 37 Remote Id.
Switch(config)# ip dhcp
snooping remote id
[remote_id]
[remote_id]
You can configure the DHCP Option 82 /
DHCPv6 Option 37 remote ID to be a
string of up to 63 characters. The default
remote ID is the switch MAC address.
No command
Switch(config)# no ip dhcp
snooping
Disable DHCP/DHCPv6 snooping
function.
Switch(config)# no ip dhcp
snooping dhcp-server
Remove DHCP/DHCPv6 server trust
port(s).
Switch(config)# no ip dhcp
snooping dhcp-server-ip
Globally disable DHCP/DHCPv6 server
trust IP/IPv6 address.
Switch(config)# no ip dhcp
snooping dhcp-server-ip [1-
4] ip-address
Remove DHCP/DHCPv6 server trust
IP/IPv6 address from the specified trust
IP/IPv6 address number.
Switch(config)# no ip dhcp
snooping initiated
Reset the initiated time value back to the
default setting. (4 seconds)
Switch(config)# no ip dhcp
snooping leased
Reset the leased time value back to the
default setting.(86400 seconds)
Switch(config)# no ip dhcp
snooping option
Disable DHCP Option 82 / DHCPv6
Option 37 relay agent.
Switch(config)# no ip dhcp
snooping remote
Disable DHCP Option 82 / DHCPv6
Option 37 Manual Remote Id.