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

Last Modified: Sep 13, 2023

Affected Product(s):
BIG-IP LTM(all modules)

Known Affected Versions:
11.5.1 HF1, 11.5.1 HF2, 11.5.1 HF3, 11.5.1 HF4, 11.5.1 HF5, 11.5.1 HF6, 11.5.1 HF7, 11.5.1 HF8, 11.5.1 HF9, 11.5.1 HF10, 11.5.1 HF11, 11.5.2 HF1, 11.5.3 HF1, 11.5.3 HF2, 11.5.4 HF1, 11.5.4 HF2, 11.5.4 HF3, 11.5.4 HF4, 12.0.0, 12.0.0 HF1, 12.1.0 HF1, 12.0.0 HF2, 12.1.0 HF2, 12.0.0 HF3, 12.0.0 HF4, 12.1.1 HF1, 12.1.1 HF2, 12.1.2 HF1, 12.1.2 HF2

Fixed In:
12.1.0, 11.6.0 HF6

Opened: Jul 15, 2015

Severity: 2-Critical

Related Article: K82536069


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.


The DHCP packet is not forwarded to the backend server.


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


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

Guides & references

K10134038: F5 Bug Tracker Filter Names and Tips