Configuring Udp Helper; Important Points To Remember About Udp Helper; Enabling Udp Helper - Dell Force10 C150 Configuration Manual

Configuring UDP Helper

Configuring FTOS to direct UDP broadcast is a two-step process:
1. Enable UDP helper and specify the UDP ports for which traffic is forwarded. See
Helper on page
2. Configure a broadcast address on interfaces that will receive UDP broadcast traffic. See
Broadcast Address on page

Important Points to Remember about UDP Helper

• The existing command
same interface.
• The broadcast traffic rate should not exceed 200 packets per second when UDP helper is enabled.
• You may specify a maximum of 16 UDP ports.
• UDP helper is compatible with IP helper (
• UDP broadcast traffic with port number 67 or 68 are unicast to the DHCP server per the
helper-address
• If the UDP port list contains ports 67 or 68, UDP broadcast traffic forwarded on those ports.

Enabling UDP Helper

Enable UPD helper using the command
Figure 21-10. Enabling UDP Helper
FTOS(conf-if-gi-1/1)#ip udp-helper udp-port 1000
FTOS(conf-if-gi-1/1)#show config
!
interface GigabitEthernet 1/1
ip address 2.1.1.1/24
ip udp-helper udp-port 1000
no shutdown
View the interfaces and ports on which UDP helper is enabled using the command
EXEC Privilege mode, as shown in
Figure 21-11. Viewing the UDP Broadcast Configuration
FTOS#show ip udp-helper
--------------------------------------------------
Port
--------------------------------------------------
Gi 1/1
477.
478.
ip directed broadcast
configuration whether or not the UDP port list contains those ports.
ip udp-helper udp-ports
Figure
UDP port list
1000
is rendered meaningless if UDP helper is enabled on the
ip helper-address
):
, as shown in
21-11.
Enabling UDP
Configuring a
ip
Figure 21-10.
show ip udp-helper
IPv4 Addressing | 477
from