Bug ID 533734: DHCPv6 packets arriving via tunnel are not forwarded to backend server on VIPRION

Last Modified: Nov 07, 2022

Bug Tracker

Affected Product:  See more info
BIG-IP LTM(all modules)

Known Affected Versions:
11.6.0, 11.6.0 HF1, 11.6.0 HF2, 11.6.0 HF3, 11.6.0 HF4, 11.6.0 HF5, 12.0.0, 12.0.0 HF1, 12.0.0 HF2, 12.0.0 HF3, 12.0.0 HF4

Fixed In:
12.1.0, 11.6.0 HF6

Opened: Jul 15, 2015
Severity: 2-Critical
Related Article:
K82536069

Symptoms

Packet traces show DHCPv6 packets arriving via IPv6/IPv4 tunnel, are forwarded to the VIP but the packet is not forwarded to the backend server on VIPRION devices.

Impact

The DHCP packet is not forwarded to the backend server.

Conditions

DHCPv6 packets arriving via IPv6/IPv4 tunnel interface on a multi-bladed VIPRION system.

Workaround

Use a single-bladed system.

Fix Information

The system now processes DHCP packets on the local blade instead of dropping them, if those packets come from a tunnel interface.

Behavior Change