Forum Discussion
NimbostratusiRule not executing on HTTP requests from internal network
Hi,
I have a BIG-IP VE machine running as an AWS EC2 instance, and I have encountered some behavior I can't understand.
I have a virtual server with an HTTP profile, with an iRule applied to it.
When I send HTTP requests to this virtual server, the iRule runs as expected. However when I send requests from other EC2 VMs in the same AWS VPC, I do get the expected HTTP response as the client, but the iRule does not run (I added logs to the iRule to make sure of this). Both the BIG-IP instance and the VM I'm sending the requests from are also sitting in a single subnet, with private IPs in the 172.31.x.x range.
What is causing this and how can I make the iRule always run?
3 Replies
- Injeyan_Kostas
Cirrostratus
Do you have other VS on the same BIG IP?
Might be requests from EC2 match another VS?
Have you done a tcpdump to ensure you are matching the expected VS?
iruleyouruleweruleI have only 1 VS so it's definitely the right one matching.
However... I investigated further and realized the iRule is executing, but the "after" command is not working in these instances. I have an "after 100 <script>" line which executes on requests from my local computer (and a colleague's computer on a different network), but it doesn't execute when I send requests from some cloud VMs I tested, both on AWS and in Azure. So it's still a mystery to me..
- Injeyan_Kostas
Sounds weird indeed.
Could you share irule, VS config and any logs you have?
