Experimental Physics and
Industrial Control System

Hi Marco,

I had some troubles caused by different subnets a couple of weeks ago:
https://epics.anl.gov/tech-talk/2022/msg01375.php

Some commands are mentioned in that thread that can help diagnose what's
going on on the network, e.g. tcpdump, nmap, etc.

Cheers,
Sean

On 19/09/2022 15:42, Marco A. Barra Montevechi Filho via Tech-talk wrote:
> Hello all.
>
> I have two IOC servers and inside server 1 im trying to caget a PV from
> server 2. They are not in the same subnet.
> I can caget PVs from server 2 from other servers so im guessing problem
> is in server 1. Inside server 1 i make:
>
> export EPICS_CA_ADDR_LIST="$EPICS_CA_ADDR_LIST <IP_from_server_2>"
> caget <MY_PV>
>
> and i get:
> Channel connect timed out: '<MY_PV>' not found.
>
> Server 2 is a Debian 9.11 and server 1 is Debian 10. nftables or
> iptables commands are not recognized in server 1 so i have no ideas on
> how to look for my firewall configurations.
> Any tips on how to debug this? Thanks in advance 🙂
>
> Marco
>
>
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