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Forum Discussion

Oscar_HHDZ_2836's avatar
Oscar_HHDZ_2836
Icon for Nimbostratus rankNimbostratus
Dec 13, 2016

External Monitor Without Response

Im working to develop a health monitor i Am using a "External Monitor". This monitor try to send a string that its concatenate with the date of the operating system, the string is send correctly, ho...
application delivery
BIG-IP
devops
LTM
Oscar_HHDZ_2836's avatar
Oscar_HHDZ_2836
Icon for Nimbostratus rankNimbostratus
Jul 12, 2018

The issue was related with the way that the nc "netcat" handle the communication, we perform the TCP comunication through perl command, with this we avoid the FIN/ACK packet send by F5 before the server response,

 

!/usr/bin/perl create a connecting socket

my $socket = new IO::Socket::INET ( PeerHost => $IP, PeerPort => $port, Proto => 'tcp', );