question Re: PutUDP modified the packet and adds the src address of nifi nodes in Archives of Support Questions (Read Only)

PutUDP modified the packet and adds the src address of nifi nodes

dhieru — Wed, 22 Nov 2017 02:16:44 GMT

HI All,

Thanks a lot this awesome community.

I have listenUDP which listen to events from different firewalls, and then sending it to custom software by using putUDP.

In the custom software tool, now all the senders address are changed to nifi nodes instead in original sources.

Any help to reatain the original address here?

Any suggestions

Thanks

Dheeru

Re: PutUDP modified the packet and adds the src address of nifi nodes

dhieru — Tue, 28 Nov 2017 04:31:49 GMT

@Bryan Bende

, @Matt Burgess any suggestions or help in this case

Re: PutUDP modified the packet and adds the src address of nifi nodes

bbende — Tue, 28 Nov 2017 04:54:03 GMT

This is expected behavior... ListenUDP is receiving packets and taking the content of those packets and writing them to flow files, its not capturing raw packets. When it gets to PutUDP it has no concept of the original packets, only the data that was in each one, so now it is sending new packets to your tool.

Re: PutUDP modified the packet and adds the src address of nifi nodes

dhieru — Tue, 28 Nov 2017 05:04:54 GMT

@Bryan Bende Thanks for the response, appreciate it, so it looks like it does not alter the contents original packet, it takes the content and wraps them in a packet with nifi's ip address, am I correct here?

Re: PutUDP modified the packet and adds the src address of nifi nodes

bbende — Tue, 28 Nov 2017 05:07:05 GMT

Correct... it does capture the sender in a flow file attribute in case that is useful for you in some way.