Bug ID 698000: Connections may stop passing traffic after a route update

Last Modified: Sep 13, 2023

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

Known Affected Versions:
11.6.2, 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, 12.1.0, 12.1.1, 12.1.2, 12.1.3,, 13.0.0, 13.0.0 HF1, 13.0.0 HF2, 13.0.0 HF3, 13.0.1, 13.1.0,,,

Fixed In:
14.0.0,,, 11.6.3

Opened: Dec 07, 2017

Severity: 3-Major

Related Article: K04473510


When a pool is used with a non-translating virtual server, routing updates may lead to an incorrect lookup of the nexthop for the connection.


Connections may fail after routing updates. New connections will not be affected.


-- Pool on a non-translating virtual server. -- Routing update occurs.


Use a route to direct traffic to the ultimate destination rather than using a pool to indicate the nexthop.

Fix Information

Routing updates no longer interrupts traffic to connections using a pool member to reach the nexthop.

Behavior Change

Guides & references

K10134038: F5 Bug Tracker Filter Names and Tips