Forum Discussion
Nuno_xzorp
Altostratus
AltostratusBig5 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 ...
oguzy
Cirrostratus
CirrostratusHi 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
Nuno_xzorpAltostratus
AltostratusHi oguzy,
thanks for the reply. Sorry to be able to answer just now. So I did like you suggested for port 443:
1) # tcpdump -nni mgmt port 443
tcpdump: verbose output suppressed, use -v or -vv for full protocol decode
listening on mgmt, link-type EN10MB (Ethernet), capture size 65535 bytes
^C
0 packets captured
0 packets received by filter
0 packets dropped by kernel
2) I also tried one thing, capturing port 22 while doing a ssh connection, but surprisely I got nothing (but got the ssh prompt):
# tcpdump -nni mgmt port 22
tcpdump: verbose output suppressed, use -v or -vv for full protocol decode
listening on mgmt, link-type EN10MB (Ethernet), capture size 65535 bytes
^C
0 packets captured
0 packets received by filter
0 packets dropped by kernel
what do you think?