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

Forum Discussion

Amit585731's avatar
Amit585731
Icon for Nimbostratus rankNimbostratus
Jan 14, 2016

Regarding http vip

Dear All,   We are seeing an issue where when directly hitting the server the application working fine but when going via vip the request fails. I checked on tcpdump and found that for httpget r...
application delivery
basic authentication
http
LTM
Brad_Parker_139's avatar
Brad_Parker_139
Icon for Nacreous rankNacreous
Jan 14, 2016

No, the LTM should send the 401 response back to the client provided the VIP is up. Do you have a monitor on the pool possibly marking the pool down because of the 401? Can you share your pcap?