ARP problem with F5

Question

Hi all,
we have deployed BIG IP 13.1.0 in our customer and everything is working fine exept two things:&nbsp;
The F5 has virtual server in network (let's call this network X) , which acts as forwarding proxy. The problem is that, communication between hosts in network X is very strange. When we ping from some host A to another host B the ping is successful, but the arp table on host A says that MAC address on host B is the F5 ?? F5 only has some address in this network, that's all.  
&nbsp;
The second problem is that FTP is not working. When clients wants to reach some ftp severs outside the organization is not working. We have virtual servers for ftp, but still we face this problem.. What could be the problem ? &nbsp;

raghavendrasy_7 · Answer

Hi,&nbsp;
For FTP issue just verify SNAT configurations. Can you please provide your virtual server configurations?&nbsp;

raghavendrasy · Answer

Hi,&nbsp;
For FTP issue just verify SNAT configurations. Can you please provide your virtual server configurations?&nbsp;

g_georgievv1_36 · Answer

Hi,
this is the ftp virtual server configuration:&nbsp;
ltm virtual ftp-catch {
    destination 10.65.4.247:ftp
    ip-protocol tcp
    mask 255.255.255.255
    profiles {
        http-explicit { }
        tcp { }
    }
    source 0.0.0.0/0
    translate-address enabled
    translate-port enabled
    vs-index 14
}&nbsp;

g_georgievv1_36 · Answer

Hi,
this is the ftp virtual server configuration:&nbsp;
ltm virtual ftp-catch {
    destination 10.65.4.247:ftp
    ip-protocol tcp
    mask 255.255.255.255
    profiles {
        http-explicit { }
        tcp { }
    }
    source 0.0.0.0/0
    translate-address enabled
    translate-port enabled
    vs-index 14
}&nbsp;

surgeon · Answer

It is better if you create another case for arp or ftp. Otherwise it will be a challenge to track the case&nbsp;

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ARP problem with F5

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