Service Manual

Parameters
ip-address Enter an IP address in dotted decimal format (A.B.C.D).
Defaults Not configured.
Command Modes INTERFACE
Command History
This guide is platform-specific. For command information about other platforms, see
the relevant Dell Networking OS Command Line Reference Guide.
Version Description
9.8(1.0) Introduced on the Z9100–ON.
9.8(0.0P5) Introduced on the S4048-ON.
9.8(0.0P2) Introduced on the S3048-ON.
9.7(0.0) Introduced on the S6000-ON.
9.2(1.0) Introduced on the Z9500.
9.0.2.0 Introduced on the S6000.
9.0.0.0 Added support for IPv6.
8.3.19.0 Introduced on the S4820T.
8.3.11.1 Introduced on the Z9000.
8.3.7.0 Introduced on the S4810.
8.1.1.0 Introduced on the E-Series.
7.9.1.0 Introduced VRF on the E-Series.
7.6.1.0 Introduced on the S-Series.
7.5.1.0 Introduced on the C-Series.
pre-6.2.1.1 Introduced on the E-Series.
Usage Information
You can add multiple DHCP servers by entering the ip helper-address command
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.
IPv4 Routing 977