Service Manual

Table Of Contents

Parameters

trust-downstream Configure the system to trust Option 82 when it is received from

the previous-hop router.

vrf Enter the keyword vrf to include VRF related information in the

Option 82. This configuration enables the relay agent to include

VRF related information when it forwards the broadcasts from

client to DHCP server.

Defaults Disabled.

Command Modes CONFIGURATION

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.

9.4.(0.0) Added support for VRF.

9.2(1.0) Introduced on the Z9500.

9.0.2.0 Introduced on the S6000.

8.3.19.0 Introduced on the S4820T.

8.3.11.1 Introduced on the Z9000.

8.3.7.0 Introduced on the S4810.

7.8.1.0 Introduced on the C-Series and S-Series.

ip dhcp snooping

Enable DHCP Snooping globally.

Syntax

[no] ip dhcp snooping