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

Forum Discussion

Nuno_xzorp's avatar
Nuno_xzorp
Icon for Altostratus rankAltostratus
Sep 12, 2021

Big5 LTM GUI not reachable but can ping

Hi, I'm very new in BIG5, I would like to ask your help, I had a power cut and when the power came up, I wasn't able to access the management GUI but I can ping, also when I tried to ssh, it promps ...
big-ip
cloud
LTM
Nuno_xzorp's avatar
Nuno_xzorp
Icon for Altostratus rankAltostratus
Sep 12, 2021

Hi oguzy,

I checked that but don't see any error.

Meantime I found the mgmt port mac-address last digit is diferent from listed on switch arp entry, not sure if this have influence because I can ping and reach via ssh.

Thanks

oguzy's avatar
oguzy
Icon for Cirrostratus rankCirrostratus
Sep 12, 2021

Hİ Nuno_xzorp,

As you said in your first post, you could not login via ssh due to wrong credentials. In the second post the mac address is different in the arp record. Could you please make sure you try to connect the right device? I mean after power issue, the bigip may get a new IP address. Please connect via console again, and check your IP address of bigip device. If it is the same IP with the address you are pinging, then check your listening port in your bigip device via netstat command and share with us the result.

netstat -ano | grep LISTEN | grep 443