PXE DHCP support for Option-82

Products

• Deployment Solution
• Ghost Solution Suite

Issue/Introduction

Many PXE and BOOTP servers, including those offered with Ghost Solution Suite and Deployment Solution's NBS service, do not support DHCP Option-82.

Some network environments require and enforce Option-82 for DHCP offers.

As a result, the PXE DHCP offer may be dropped by the DHCP Relay or network equipment. This will cause network booting to fail.

Environment

GSS 3.3 RU10 and earlier did not have support Option-82
GSS 3.3 RU11 and later do provide support Option-82

DS 8.7 GA and earlier did not have support Option-82
DS 8.7.1 and later do provide support Option-82

Cause

This was not a bug but a limitation with PXE

Resolution

For those using GSS 3.3 RU10 or earlier versions and those using DS 8.7 GA or earlier versions, workarounds include not enforcing Option-82 in DHCP relay or installing PXE and DHCP on the same server. It may also be possible to configure DHCP scope options to resolve the limitation in certain environments.

GSS 3.3 RU11 now provides support for Option-82 as documented in Ghost Solution Suite 3.3 RU11 Release Notes

ITMS 8.7.1 now has support for Option-82 as documented in ITMS 8.7.1 What's New in This Release