Alcatel-Lucent 6850-48 Guida Di Riferimento
DHCP Relay Commands
OmniSwitch CLI Reference Guide
September 2009
page 36-49
ip udp relay vlan
Specifies a VLAN on which traffic destined for a UDP port is forwarded.
ip udp relay {BOOTP | NBDD | NBNSNBDD | DNS | TACACS | TFTP | NTP | port} vlan vlan_id
no ip udp relay {BOOTP | NBDD | NBNSNBDD | DNS | TACACS | TFTP | NTP | port} vlan vlan_id
Syntax Definitions
BOOTP
BOOTP/DHCP well-known ports 67/68.
NBDD
NBDD well-known port 138.
NBNSNBDD
NBNS/NBDD well-known ports 137/138.
DNS
DNS well-known port 53.
TACACS
TACACS well-known port 65.
TFTP
TFTP well-known port 69.
NTP
NTP well-known port 123.
port
A user-specified port that is not a well-known port.
vlan_id
A numeric value (1–4094) that uniquely identifies an individual VLAN.
Use a hyphen to specify a range of VLANs (e.g., 1-5).
Use a hyphen to specify a range of VLANs (e.g., 1-5).
Defaults
N/A
Platforms Supported
OmniSwitch 6400, 6850, 6855, 9000, 9000E
Usage Guidelines
• Use the no form of this command to remove the VLAN association with the UDP service port.
• The maximum number of VLANs that can receive forwarded UDP service port traffic is 256.
• Only specify service port numbers that are not well known when using the port parameter with this
command. For example, do not specify port 53 as it is the well-known port number for the DNS UDP
service. Instead, use the DNS parameter to enable relay for port 53.
service. Instead, use the DNS parameter to enable relay for port 53.
• Specifying a VLAN for the BOOTP/DHCP service is not supported.
Examples
-> ip udp relay DNS vlan 10
-> ip udp 3047 vlan 500
-> no ip udp relay DNS vlan 10