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Ruchir_79916's avatar
Ruchir_79916
Icon for Nimbostratus rankNimbostratus
Nov 16, 2011

Using VS for port forwarding

Hey guys,

 

 

 

 

This is very simple config, which has been troubling me a bit. I am trying to do this:

 

 

 

My webserver is running with 2 ports active 80 and 8080

 

 

 

Now this is what I am doing, point one domain directly to port 80 IP and then on LTM create a VS with service port 80 and in pool add server with port 8080, but for some reason, It doesn't forward anything to pool, I can not see anything in log, anyone has a clue ..

 

 

 

or is there something I am doing wrong ..

 

config
design
  • JRahm's avatar
    JRahm
    Icon for Admin rankAdmin
    Nov 16, 2011
    does the LTM have a route to your server, and if the LTM is not the default gateway for your server, have you enabled snat automap or added a snat pool?
  • Ruchir_79916's avatar
    Ruchir_79916
    Icon for Nimbostratus rankNimbostratus
    Nov 17, 2011
    LTM can reach to server just fine .. Pool shows available and check is working too, but doesn't forward request ..
  • nitass's avatar
    nitass
    Icon for Employee rankEmployee
    Nov 17, 2011
    can you post output of these commands?

     

     

    b virtual virtual_server_name list

     

    b pool pool_name list
  • Ruchir_79916's avatar
    Ruchir_79916
    Icon for Nimbostratus rankNimbostratus
    Nov 17, 2011
    Here:

     

    Virtual list:

     

     

    virtual lte.dtkcdn.com {

     

    translate address disable

     

    translate service disable

     

    pool lte.dtkcdn.com

     

    destination 10.150.100.8:http

     

    ip protocol tcp

     

    clone pools lte.dtkcdn.com clientside

     

    }

     

     

    Pool List:

     

    pool lte.dtkcdn.com {

     

    monitor all tcp

     

    members 10.150.100.7:webcache {}

     

    }
  • nitass's avatar
    nitass
    Icon for Employee rankEmployee
    Nov 17, 2011
    can you try this?

     

     

    b virtual lte.dtkcdn.com snat automap translate address enable translate service enable
  • nitass's avatar
    nitass
    Icon for Employee rankEmployee
    Nov 17, 2011
    awesome, that worked, do you mind explain what you think reason was ??of course.

     

     

    snat automap - this will translate source ip to selfip address when bigip sends traffic to pool member. snat is required to force return traffic going to bigip in case pool member's default gateway is not bigip or client and pool member is in same subnet.

     

     

    translate address enable - this will translate destination ip address from virtual server address to pool member ip address e.g. 10.150.100.8 to 10.150.100.7.

     

     

    translate service enable - this will translate destination service port from virtual server service port to pool member service port e.g. 80 to 8080.

     

     

    all of these are able to configure via webui as well. they are under virtual server setting but you have to change configuration combo box from basic to advance to display these options.

     

     

    hope this helps.