Mar 27, 2026 - For details about updated CVE-2025-53521 (BIG-IP APM vulnerability), refer to K000156741.

Forum Discussion

SSHSSH_97332's avatar
SSHSSH_97332
Icon for Nimbostratus rankNimbostratus
Nov 25, 2011

Link Controller Listeners

    I Cannot Feel to understand the listenert Correctly , Ifound the below example at the document ( Attached ) :   Link Router Address Uplink Address ISP   isp1 ...
config
design
FredR_30652's avatar
FredR_30652
Icon for Nimbostratus rankNimbostratus
Nov 28, 2011
Hi,

 

 

10.10.10.1 & 10.20.10.1 are floating IP in each ISP vlans (external) , the box listen on 53 tcp port for the DNS request.

 

The LC will act as a Name Server , he will get the entries from the Wide IP list in his config , each Wide IP (FQDN) own members (Virtual servers) with IP adress in ISP1 or ISP2.

 

So DNS request for www.example.com send to the LC will be awnsered regarding the Wide IP www.example.com with Vs example-ISP1 10.10.10.100 or Vs example-ISP2 10.20.10.100.

 

 

Regards,

 

 

Fred