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

Hi Nuno_xzorp,

Although both devices are on the same network, and port 443 listens on the bigip, you could not reach.

Could you please start a tcpdump on your management interface of bigip device, and try to telnet again? I wonder if you see the SYN packet on the tcpdump? 

tcpdump -nni name_of_mgmt_interface port 443
oguzy's avatar
oguzy
Icon for Cirrostratus rankCirrostratus
Sep 13, 2021

Hi Nuno_xzorp,

 

Because you successfully connect via ssh, I was expecting that your second tcpdump should capture some packets. That means the name of interface that you connect is not mgmt. If you change tcpdump command like this: tcpdump -nni 0.0 port 22 or port 443 , you will see some packets.

I guess you normally access your bigip from a self_ip not from a management port.