Forum Discussion
darwinperez_kyn
Nimbostratus
NimbostratusInsert host name in TCP data
Hello, We have a scenario where a Mainframe is sending a transactional data(tcp) to F5 that needs to have a host name inserted to it. The problem is that, even irule or local policy is not making it...
boneyard
MVP
MVPSeveral layers in this question.
My first question is why. You say the traffic from the mainframe needs to have a hostname inserted on the F5. So why? Will the destination the F5 is sending it to understand that change in traffic?
The second question is about traffic flow. You are already some steps in, but can you share a picture with the networks and should showing how the BIG-IP is positioned between the client (mainframe) and server (backend servers?).
Also you mention transactional data(TCP). What exactly? Is it using the HTTP protocol?, the port in the packet capture suggests that, but is it really?
I would leave the iRule out of it for now, first get the traffic flow between client and server via BIG-IP working, then start with modifying things. For that I agree with zamroni777 if this is actually HTTP traffic.
For sure also share the virtual server config and have a look at the /var/log/ltm log to see if it shows hints on the cause.