I need help getting Virtual Server working on F5--LAB

Please I need help getting Virtual Server working on F5 on my lab.
The lab setup is as follow—From VMware Workstation 12.1
Internal interface (Self IP)--
External interface (Self IP) – (default gateway—DSL router)
Nodes (, 22 and 33)
Virtual server—
Management (Self IP) address is
I can ping to 10.1.0.X and 10.2.0.x addresses, but unable to ping (VS ip address) , not sure what I have been doing wrong.
Ping to --
Ping to -- (Successful)
Ping to Nodes (, 22 and 33) -- (Successful)
Ping to (Successful)
Ping to Virtual server— (Failed—Destination host Unreachable)
Also attached is some graphic result to give an idea of what is working and what is not working.
Please help.
Who is Participating?
Craig BeckConnect With a Mentor Commented:
A forwarding VIP wouldn't load-balance traffic, so if you want distributed load-balancing a forwarding VIP isn't what you need.  You'd generally use a forwarding VIP if you want to pass infrastructure traffic through the F5 without doing any magic to it.

Where are you on the network in relation to the web servers when you're testing?

Looking at your latest attachment it appears you've configured a Virtual Address.  You want to configure a Virtual Server too, if you haven't already.  The Virtual Address is used to create a Virtual Server which allows you to load-balance the protocols you require.

This will help you understand...
arnoldConnect With a Mentor Commented:
You usually can not ping the virtual interface from the F5. Nor from the systems to which the virtual interface forwards.
If you have ping as part of the DSL troubleshooting toolset, you should be able to ping from

Are you able to access the services for which the virtual interface on the F5 is setup from the outside?
For more experienced F5 experts, I think you need to provide greater detail on what the contex is for this question.
To test, telnet to the ports/services for which the virtual Is interface is setup.
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gbolly1913Author Commented:
Thank  you sir for looking at this for me.

Just started learning F5 load balancing, I have zero experience.

“You usually can not ping the virtual interface from the F5. Nor from the systems to which the virtual interface forwards”.

This is why expert exchange is a valuable service, because I don’t know that you cannot ping the VS  ip address from F5 itself, and not even from my laptop that is connected to my DSL, thanks you very much for pointing that out to me.

The main purpose of my question is that when I setup up the lab, I was expecting to be able to toggle between each of the three server when I refresh my browser which  I mentioned in my post (, 22, 33) when I http to virtual server ip address from my laptop browser, which I believe would have simulated real environment.


When I http directly to the three server from my laptop i.e. http:/, 22, 33 I was able to see them

“If you have ping as part of the DSL troubleshooting toolset, you should be able to ping from”.
I can ping all other addresses from my laptop and F5, as shown in my previous attachment, including as shown below

Pinging with 32 bytes of data:
Reply from bytes=32 time=28ms TTL=255
Reply from bytes=32 time=10ms TTL=255
Reply from bytes=32 time=10ms TTL=255
Reply from bytes=32 time=11ms TTL=255

Ping statistics for
    Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
    Minimum = 10ms, Maximum = 28ms, Average = 14ms
gbolly1913Author Commented:
[root@BIGIP-Test-1:Active:Standalone] config # telnet http
telnet: connect to address No route to host
[root@BIGIP-Test-1:Active:Standalone] config #
btanConnect With a Mentor Exec ConsultantCommented:
1) Check that arp is enabled on the virtual addresses
2) Check that icmp is enabled on the virtual addresses

3) Check that the the virtual servers are enabled on the LTM vlan where you are trying to reach them (virtual servers are enabled on all vlans by default)
4) Check virtual server/address statistics to see if any traffic is reaching them

Another is to configure the profile to your pool member of web server and try if the browser can reach the server thru the VIP.
gbolly1913Author Commented:
Thanks btan, i have follow your instruction and tested the VS via both IE and firefox, does not work as shown in the attached.

I can browse to the three server from both IE and firefox, also as shown in the attached.

Thanks for your help.
Ok, so you ave the virtual server, the section I think covered in the link attaches the forwarding of the connection info seems to be missing.
Check the default route of the system behind it.

Use wireshark or ms network monitor on the web server to see whether it sees traffic voting from

Presumably your web server are connected directly or via switch into the F5.
btanExec ConsultantCommented:
Make sure client is in same subnet as VIP. Minimally the VIP should be able to reach if you already cobfigured your pooled member.
Run tcpdump in F5 to see the traffic routing information of your attempts.

I am thinking if the VIP is to just forward traffic then should use forwarding VIP
btanExec ConsultantCommented:
agree with Craig. It depends on your use case. better to do network log check within F5 (tcpdump) to see where it fails
gbolly1913Author Commented:
Thanks Btan and Craig, I am sorry that I haven’t posted response to your message, I am out of town and my lab laptop is not with me.

I should be back on Tuesday and apply your suggestion in reference to virtual server and Virtual Address and update you of my progress.

Thanks for your help.
gbolly1913Author Commented:
Apology, i am occupied with some other issue that i will need to concentrate on.

Hope to continue investigate at a later date.

Thanks for all your help.
gbolly1913Author Commented:
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