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Subject: Re: Recsync: RecCeiver Server announcement contains Broadcast address instead of server ip address
From: Heinz Junkes via Tech-talk <tech-talk at aps.anl.gov>
To: Han Lee <jeonglee at lbl.gov>
Cc: EPICS Tech Talk <tech-talk at aps.anl.gov>
Date: Mon, 25 Apr 2022 13:01:46 +0200
Hallo Han,
thanks for the hint. But this only works if the computer system also has a “leg” (network connection)  into the respective networks?

We also have something like this for the FEL network, for example. But otherwise there are always gateway computers between the individual experiment networks und the main-net.
However, since we are routing out of the experiment machines into our main-net, I'll try my hand at modifying announce.py.

tcpaddr='\xff\xff\xff\xff’ -> tcpaddr='\x8d\x0e\x8c\x62’  (141.14.140.98)

Heinz


> On 24. Apr 2022, at 02:43, Han Lee <jeonglee at lbl.gov> wrote:
> 
> Hi Heinz,
> 
> Could you try to add your IOC address subnets into the recceiver server configuration as addr_list? 
> 
> https://github.com/jeonghanlee/RecSync-env/blob/7b9fbc794ec8e4ae36349593780f9dcd00d142a0/site-template/recsync.conf.in#L16
> 
> Multiple IOCs just see the resync server (Not CF - elasticsearch - server) without issues. 
> 
> For example, you can add each subnet where your IOCs are running, such as
> 
> 10.10.11.255:5049, 10.10.48.255:5049, ..................................
> 
> I hope this is what you are looking for. Or I completely misunderstand your description.
> 
> Best,
> Han
> 
> 
> On Fri, Apr 22, 2022 at 11:52 AM Heinz Junkes via Tech-talk <tech-talk at aps.anl.gov> wrote:
> Hi,
> 
> we need to route the announcements from our central Channelfinder server to a subnet so that the
> recasters on the IOCs in the subnet can send their PV information to the server.
> 
> Unfortunately, the announcement package does not contain the IP of the server but FF:FF:FF:FF.
> 
> root@priscilla:~# socat -ls -u -v -x UDP4-RECVFROM:5049,broadcast,fork,bind=141.14.143.255 UDP4-SENDTO:10.0.1.255:5049,broadcast
> > 2022/04/22 17:22:18.879313  length=16 from=0 to=15
> 
> 52 43 00 00 ff ff ff ff 84 81 00 00 61 bf c1 23  RC..........a..#
> 
> Gruss Heinz
> 
> 
> 
> 
> -- 
> Jeong Han Lee, Dr.rer.nat
> Staff Scientist and Engineer
> Lawrence Berkeley National Laboratory
> 1 Cyclotron Road Mailstop 46R0161
> Berkeley, CA 94720, United States
> Tel :+1-510-486-6163
> Cell:+1-510-384-3868


Replies:
Re: Recsync: RecCeiver Server announcement contains Broadcast address instead of server ip address William Kirstaedter via Tech-talk
References:
Recsync: RecCeiver Server announcement contains Broadcast address instead of server ip address Heinz Junkes via Tech-talk
Re: Recsync: RecCeiver Server announcement contains Broadcast address instead of server ip address Han Lee via Tech-talk

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