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<== Date ==> <== Thread ==>

Subject: RE: Problems with CA
From: Mark Rivers <[email protected]>
To: Florian Feldbauer <[email protected]>, EPICS Tech Talk <[email protected]>
Date: Thu, 29 Jan 2015 12:50:11 +0000
That should have worked.

Are you sure that you have set the subnet mask on your IOC machine correctly?

Mark

________________________________________
From: Florian Feldbauer [[email protected]]
Sent: Thursday, January 29, 2015 6:44 AM
To: Mark Rivers; EPICS Tech Talk
Subject: Re: Problems with CA

Hey,

thanks for the answers.
Unfortunately I did not work:

Here is what I tried:

  ~ > ifconfig p3p1
p3p1: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
         inet 192.168.1.1  netmask 255.255.255.0  broadcast 192.168.1.255
         inet6 fe80::213:3bff:fe0f:e7bf  prefixlen 64  scopeid 0x20<link>
         ether 00:13:3b:0f:e7:bf  txqueuelen 1000  (Ethernet)
         RX packets 39249  bytes 5375914 (5.1 MiB)
         RX errors 0  dropped 0  overruns 0  frame 0
         TX packets 192403  bytes 81244106 (77.4 MiB)
         TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

  ~ > setenv EPICS_CA_AUTO_ADDR_LIST NO
  ~ > setenv EPICS_CA_ADDR_LIST 192.168.1.255
  ~ > caget -w 20 PANDA:LMD:MUPIX:HV:TLSCP:0:Vmom
Channel connect timed out: 'PANDA:LMD:MUPIX:HV:TLSCP:0:Vmom' not found.
  ~ > setenv EPICS_CA_ADDR_LIST 192.168.1.6
  ~ > caget PANDA:LMD:MUPIX:HV:TLSCP:0:Vmom
PANDA:LMD:MUPIX:HV:TLSCP:0:Vmom 0.0489747


p3p1 is the name of the network interface to which all our EPICS IOCs
are connected...

   Florian

On 01/29/2015 12:58 PM, Mark Rivers wrote:
>> Is there a way to specify a subnet as address lsit for CA?
> Yes.
>
> setenv EPICS_CA_AUTO_ADDR_LIST NO
> setenv EPICS_CA_ADDR_LIST 192.168.1.255
>
> where 192.168.1.255 is the broadcast address of that subnet.  That syntax would be correct if the subnet mask is 255.255.255.0.
>
> Mark
>
>
> ________________________________________
> From: [email protected] [[email protected]] on behalf of Florian Feldbauer [[email protected]]
> Sent: Thursday, January 29, 2015 3:35 AM
> To: EPICS Tech Talk
> Subject: Problems with CA
>
> Hey all,
>
> I have observed some problems with channel access in our lab.
> We have a PC with three network interfaces.
> On is connected to the network of our institute (->WAN)
> the other two are used for local sub nets with its own DNS/DHCP...
> The used OS on this PC is Fedora 20.
>
> On one of these local sub nets I have a running EPICS IOC.
> When using caget on the PC I always get a timeout error.
> Only when I specify the environment variables:
>       setenv EPICS_CA_AUTO_ADDR_LIST no
>       setenv EPICS_CA_ADDR_LIST 192.168.1.6
> caget works.
>
> The IP addresses for the local subnet are dynamically assigned,
> and I don't want to look up each time, which addresses are used....
> Also I don't want to put all 256 possible addresses in the
> EPICS_CA_ADDR_LIST.
>
> Is there a way to specify a subnet as address lsit for CA?
> Or is it possible to bind all request (from Clients as well as from
> Servers) on the machine
> to one specific interface?
>
> Best regards,
> Florian
>
>
> --
> ----------------------------------------
> | Dr. Florian Feldbauer                |
> |                                      |
> | Helmholtz-Institut Mainz /           |
> | Johannes Gutenberg-Universität Mainz |
> | Johann-Joachim-Becher-Weg 36         |
> | D-55128 Mainz                        |
> |                                      |
> | Office: SB1 / 00-213                 |
> | Phone:  (+49)6131 / 39-29605         |
> ----------------------------------------
>
>


--
----------------------------------------
| Dr. Florian Feldbauer                |
|                                      |
| Helmholtz-Institut Mainz /           |
| Johannes Gutenberg-Universität Mainz |
| Johann-Joachim-Becher-Weg 36         |
| D-55128 Mainz                        |
|                                      |
| Office: SB1 / 00-213                 |
| Phone:  (+49)6131 / 39-29605         |
----------------------------------------

Replies:
RE: Problems with CA Mark Rivers
References:
Problems with CA Florian Feldbauer
RE: Problems with CA Mark Rivers
Re: Problems with CA Florian Feldbauer

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