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themyth_317517's avatar
themyth_317517
Icon for Nimbostratus rankNimbostratus
May 19, 2017

Port 1720 open on F5 public virtual server

Hi guy, My virtual server pulib to Internet via F5 and just open port http/80, https/443, but when i try to telnet port 1720 to Public IP of virtual server, it connect [telnet IP 1720], its working, ...
ASM Advanced WAF
security
Tikka_Nagi_1315's avatar
Tikka_Nagi_1315
Historic F5 Account
May 19, 2017

What are the results of?

 

nmap -O

 

and if you capture the Nmap scan in a tcpdump do you see the packets making it to bigip?

 

tcpdump -i 0.0:nnn -w /var/tmp/port1720.pcap host and host