F5 B Conn Command and Equivalent in 11.x

Recently we have been uplifting our current F5 hardware from 10.2 to 11.1 hotfix 1 and I wanted to share a useful command to show active connections coming from a particular virtual server

We have been using b conn command on the command line

For example on the command line enter:

b conn show all – Will show all active connections from all virtual servers (may take a minute or two to come back)

b conn protocol 443 – Will show all active connections from all virtual servers using port 443

b conn | grep 10.2.2.1 – Will show all active connections from the virtual server with an IP address of 10.2.2.1

I hope these examples are helpful in 11.x the command is a little different you have to use tmsh

For example on the command line enter:

tmsh – Enters tmos

show sys connection all – Will show all active connections from all virtual servers (may take a minute or two to come back)

show sys connection cs-client-addr 10.2.2.1 – Will show all active connections from the virtual server with an IP address of 10.2.2.1

show sys connection cs-client-port 443 – Will show all active connections from all virtual servers using port 443

If you want to kill a session from an ip source or ip destination by port you can use the following by using some of the above:

tmsh delete sys connection