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Forum Discussion

Benjamin_Wong_1's avatar
Benjamin_Wong_1
Icon for Nimbostratus rankNimbostratus
Apr 01, 2006

How to make a binary UDP respond packet ?

Actually I am doing a project, it needs the F5 to respond a UDP packet with binary data.     but when i want to respond the UDP packet with UDP::respond , with binary data \x00, the packet it g...
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James_Yang_9981's avatar
James_Yang_9981
Icon for Altostratus rankAltostratus
Apr 03, 2006
Sorry, it should be UDP::respond command to response the packets.

 

 

I have test it on a 9.1.1 platform with rules:

 

 

when CLIENT_ACCEPTED {

 

set packet [binary format S {0x0000}]

 

UDP::respond $packet

 

}

 

 

notice I write wrong command UDP::response should be UDP::respond

 

 

I configure the VS listen on UDP port 53 and send a dns request to VS, there are no nodes behinde VS, then I got the return packet as attached file.

 

 

BTW, do you have member in the VS pool? if you have, maybe you should add a UDP::drop after UDP::respond. that can prevent Server response.