vServer doesn't respond properly (telnet+, browser-)
Hello there! I'm very new to BIG IP, ADC, etc. and started with CBT nuggets course. Actually I've dowloaded BIG IP virtual appliance, seasoned it with trial license. I have configured vServer ip, I've got pool, everything is green and healthy. Servers (nodes) provide content, I can clearly see it by telneting and browsing servers directly with using their direct ip addresses (which appears like internal network to the ADC). But when I try to browse from external by typing vServer's ip web-browser - I got nothing. Pool counters are incrementing, but no web page is shown.
Brief topology:
my.local.net=192.168.80/24 -- 192.168.80.8(big_ip_vServer_ip) - 10.2.0.155 - pool_of_servers (10.2.0.11 +.22 +.33)
I'm trying to open from 192.168.80.150.
And the most confusing part: if I do 'telnet 192.168.80.8 80' my terminal goes through, but I can only see moving cursor and can not even see 'get / http/1.1' or something.
I reloaded all the VMs, checked all the settings, can't find the problem.
PS: and by the way, why do we need ext_ip (which I configured 192.168.80.7) and vServer (which is 192.168.80.8) ip in the same network? The only reason that I can imagine - you can config ADC from outside and you cannot config ADC by using vServer's ip. Right?