Bug ID 772129: Client to server traffic dropped when enabling automatic (remote-address any) 6to4 tunnel

Last Modified: Jul 03, 2019

Bug Tracker

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

Known Affected Versions:
14.0.0, 14.0.0.1, 14.0.0.2, 14.0.0.3, 14.0.0.4, 14.0.0.5, 14.1.0, 14.1.0.1, 14.1.0.2, 14.1.0.3, 14.1.0.4, 14.1.0.5, 14.1.0.6

Opened: Apr 12, 2019
Severity: 3-Major

Symptoms

Traffic from client to server fails destination mapping and is getting dropped with port exhaustion logs: -- crit tmm5[21240]: 01010201:2: Inet port exhaustion on 2a0a:1e01:101:112::11 to 2002:ab0:2002:1:250:56ff:febd:9f0.128 (proto 58)

Impact

Traffic from client to server fails destination mapping.

Conditions

Configuring 6to4 tunnel remote-address to 'any'.

Workaround

You can use either of the following workarounds: -- Re-configure the tunnel to use static remote address (enables traffic to be passed in both directions). -- Use 6rd with 2002::/16 prefix.

Fix Information

None

Behavior Change