Usage Information

VersionDescription

8.3.19.0Introduced on the S4820T.

8.3.11.1Introduced on the Z9000.

8.3.7.0Introduced on the S4810.

8.1.1.0Introduced on the E-Series ExaScale.

7.9.1.0Introduced VRF on the E-Series.

7.6.1.0Introduced on the S-Series.

7.5.1.0Introduced on the C-Series.

pre-6.2.1.1

Introduced on the E-Series.

You can add multiple DHCP servers by entering the ip helper-addresscommand multiple times. If multiple servers are defined, an incoming request is sent simultaneously to all configured servers and the reply is forwarded to the DHCP client.

Dell Networking OS uses standard DHCP ports, that is UDP ports 67 (server) and 68 (client) for DHCP relay services. It listens on port 67 and if it receives a broadcast, the software converts it to unicast, and forwards to it to the DHCP-server with source port=68 and destination port=67.

The server replies with source port=67, destination port=67 and Dell Networking OS forwards to the client with source port=67, destination port=68.

ip helper-address hop-count disable

Disable the hop-count increment for the DHCP relay agent.

S6000

Syntax

ip helper-address hop-count disable

 

To re-enable the hop-count increment, use the no ip helper-address hop-

 

count disable command.

Defaults

Enabled; the hops field in the DHCP message header is incremented by default.

Command

CONFIGURATION

Modes

 

Command

This guide is platform-specific. For command information about other platforms,

History

refer to the relevant Dell Networking OS Command Line Reference Guide.

 

The following is a list of the Dell Networking OS version history for this command.

766

IPv4 Routing

Page 766
Image 766
Dell 9.7(0.0) manual Ip helper-address hop-count disable, Count disable command