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Tosin_Omojola's avatar
Tosin_Omojola
Icon for Altostratus rankAltostratus
Apr 13, 2015

Direct Telnet to Pool Members Using Bigip as Gateway

I want to telnet to a pool member directly using Bigip as the gateway and sourcing the packet with a public IP. I couldn't get a return packet though I see ( from tcpdump) that the request packet got to the destination and the destination router/switch also has Bigip as the default gateway.

 

Is Bigip dropping the packet somewhere? Why am I not able to receive a response? However, traffic is forwarded to the pool when the VS is accessed.

 

I need an explanation please. Thank you

 

application delivery
deployment
LTM

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  • DevBabu_174449's avatar
    DevBabu_174449
    Icon for Cirrus rankCirrus
    Apr 13, 2015

    Where are you taking packet captures. I would suggest you to take capture at F5 an on the destination router switch and compare if the destination is sending response back to F5.

     

  • dragonflymr's avatar
    dragonflymr
    Icon for Cirrostratus rankCirrostratus
    Apr 13, 2015

    Hi, What is used for telnet access? VS, NAT SNAT? You can't use VS VIP (created for example to serve http) to access pool members in reliable manner, except probably when you create specialized VS with port 23 and some kind of persitence (if there is more than one pool member). Piotr