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F5 BIG IP LTM virtual server

rifki
Altocumulus
Altocumulus

how do you connect the client to the virtual server?

I typed the virtual server ip address but failed

0691T000008cjTaQAI.png

10 REPLIES 10

Hello,

 

Check below points,

 

  1. As Virtual Server status is showing Available that means the backend web server pool is up. Now first check basic connectivity to VS first from client. Try by telnetting VS IP on port 80 from client machine. This will confirm if client request reaching F5 VS or not.
  2. Also why there is no http profile configured on VS. To act F5 as normal reverse proxy, you should have http profile configured on VS. Please configure default 'http' profile on it.
  3. Check SNAT settings. If your backend web-server's gateway is not F5 (it is on switch etc) then you need to enable SNAT settings. Otherwise it will create Asymmetric Routing issues.
  4. You can even check hits to backend pool members. Check if requests are getting forwarded to backend pool members when client tries to connect VS. This can be seen under statistics.

 

If still there are issues, please put full snap of VS configuration.

 

Mayur

VikashC
Cirrus
Cirrus

check snat settings.

rifki
Altocumulus
Altocumulus

this is my configuration

 

0691T000008cjUJQAY.png0691T000008cjUEQAY.png0691T000008cjU9QAI.png

0691T000008cjU4QAI.png

Can you please verify steps given in my first reply?

 

Mayur

rifki
Altocumulus
Altocumulus

can you provide a sample photo for what you explained before?

0691T000008cjVbQAI.png0691T000008cjjiQAA.jpgHello  ,

 

I have attached snaps here. It shows http profile and SNAT settings. Also 2nd snap shows statistics status under pool. If there are some numbers then it ,means requests are hitting F5 VS and F5 is forwarding requests to backend pool members.

 

Hope it helps you!

 

Mayur

Rahul_Kaul
Cirrus
Cirrus

Hi rifki, you configuration seems right prima facie and answer for you question "how do you connect the client to the virtual server?" is by typing in internet browser "http://192.168.42.254" and also cross-check via command "telnet 192.168.42.254 80" for success by client machine.

rifki
Altocumulus
Altocumulus

I have typed in http://192.168.42.254 but still can't

how to check telnet 192.168.42.254?

As you have VS using private IP, you need to do telnet test from the system from where VS IP will be reachable. e.g LAN system. Just put below command from cmd,

telnet 192.168.42.254 80

And see if you're able telnet it. Also have you checked the other settings that i've mentioned in my earlier comments.

Mayur​

rifki
Altocumulus
Altocumulus

Thank you all for your help