Forum Discussion

R_S's avatar
R_S
Icon for Nimbostratus rankNimbostratus
Jul 15, 2021

Insert LTM IP and pool member IP in header in the response to client

Hi I want to insert the header in the response to client with the IP address of the LTM pool member that served the request and the Big-IP LTM IP address? What is the difference between IP::local_a...
application delivery
BIG-IP
iRules
spalande's avatar
spalande
Icon for Nacreous rankNacreous
Jul 17, 2021

No. IP::server_addr will give you node IP address (without port). TCP::server_port will give node port.

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But ​if you just use LB::server it will give you node IP, port (member) and pool name.

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spalande's avatar
spalande
Icon for Nacreous rankNacreous
Jul 17, 2021

When you say local IP address, I'm assuming you are mentioning F5 selfIp address?

Below iRule will insert f5_server header with value of <f5_floating_selfIP>__<node_ip>. 

when HTTP_RESPONSE {
HTTP::header insert f5_server "[IP::local_addr]_[IP::server_addr]"
}

I think I overlooked your original request and iRule.my bad. So your original iRule was ok, I would just add name of the header. Hope this helps.