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Rajesh_07_16489's avatar
Rajesh_07_16489
Icon for Nimbostratus rankNimbostratus
Apr 30, 2016

Forwarding Virtual Server

Dear All,   I am trying to access Internet from internal server whose gateway is f5's internal IP. From f5, I am able to reach gateway and inturn Internet IPs. However, I am unable to reach either...
application delivery
BIG-IP
LTM
Joel_9874's avatar
Joel_9874
Icon for Nimbostratus rankNimbostratus
Apr 30, 2016

Hello, just an additional question a bit related to the 1st request :

 

are you able to ping from internal LAN towards Internet thru this VS ?

 

I am currently trying to do so with a Link controller which load-balances outgoing requests via 2 Internet links;

 

so, I created a kind of VS like yours, but with SNAT and with a pool representing the 2 ISP routers next to the Link Controller;

 

everything is OK for any kind of traffic, except for Ping from internal LANs :

 

they reach the F5 but never go out towards any of the 2 ISP links : I checked it via TCPDUMP;

 

I have followed the recommendations listed here : https://support.f5.com/kb/en-us/solutions/public/7000/300/sol7366.html nothing changed (I use BigIP V12 HF2)

 

any idea ?

 

thanks in advance

 

  • Hannes_Rapp's avatar
    Hannes_Rapp
    Icon for Nimbostratus rankNimbostratus
    May 01, 2016
    Works well for ICMP, and anything else IP-related. Are you sure you have selected 'Protocol * (All Protocols)' in 0.0.0.0/0 VS configuration? If it's just TCP (default choice as Rajesh 07 has configured), then ping won't work. Apart from that, I cannot think of any other obvious problems here