Ip Udp Relay Vlan - Alcatel-Lucent OmniSwitch 6250 Cli Reference Manual

DHCP Relay Commands

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
NBDD
NBNSNBDD
DNS
TACACS
TFTP
NTP
port
vlan_id
Defaults
N/A
Platforms Supported
OmniSwitch 6250
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.
•
Specifying a VLAN for the BOOTP/DHCP service does not work if the per-vlan only forwarding
option is not active. Use the
Examples
-> ip udp relay DNS vlan 10
-> ip udp 3047 vlan 500
-> no ip udp relay DNS vlan 10
OmniSwitch 6250 CLI Reference Guide
BOOTP/DHCP well-known ports 67/68.
NBDD well-known port 138.
NBNS/NBDD well-known ports 137/138.
DNS well-known port 53.
TACACS well-known port 65.
TFTP well-known port 69.
NTP well-known port 123.
A user-specified port that is not a well-known port.
A numeric value (1–4094) that uniquely identifies an individual VLAN.
Use a hyphen to specify a range of VLANs (e.g., 1-5).
ip helper per-vlan only
November 2009
command to enable this option.
page 32-45