How to limit the number of concurrent sessions from a client on a VS

Do you mean "session" or connection"?

Hi,

I mean connection.

Romain

This is for 11.5, implementation are a bit different on prior code revs.

https://support.f5.com/kb/en-us/products/big-ip_ltm/manuals/product/ltm-implementations-11-5-0/33.html?sr=41487869

Hi,

thanks for your answer.

But, correct me if I'm wrong, this way allows to limit the total number of connections, no matter the client source IP. What I want to do is to limit the number of connections per each source IP.

Romain

You could most likely use an iRule with a count by src IP address stored in a table. If src IP address count = limit do not allow the connection (or provide a friendle error)

Maybe look here for some inspiration

http://www.wirelessphreak.com/2014/03/f5-source-ip-connection-limit-irule.html

There is a bunch out there for this scenario, the search box in the top right corner is your friend.. ;)

A good article to read on connection limiting via an irule by Colin

https://devcentral.f5.com/articles/iruleology-connection-limiting-take-2

Code share links:

Virtual server connection limit with HTTP response https://devcentral.f5.com/wiki/iRules.virtual_server_connection_limit_with_HTTP_response.ashx

virtual server connection rate limit with tables https://devcentral.f5.com/wiki/iRules.virtual_server_connection_rate_limit_with_tables.ashx

a couple random conversations

source & destination example - https://devcentral.f5.com/questions/irule-to-limit-connections-from-source-ip-to-destination-ip

another https://devcentral.f5.com/questions/help-need-to-create-a-irule-for-limit-client-connection

Dear All ,

Can anyone tell me how to limit session on virtual server .

In addition , what is the session and connection limit in F5 LTM and which scenario , session and connection limit is applicable .

One of my client requirement is to limit the connection after 800 session . Is it possible using F5 LTM .Need your valuable comments on this.

Looking forward to your reply soon.

With regards

Erfan

You can goto

Access Policy ›› Access Profiles : Access Profiles List ›› Your-apm-access-policy-- there you have Max In Progress Sessions Per Client IP . Set according to your requirement. Do not make it zero.