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Subject: Re: problem connecting serial device with moxa 5150A
From: haquin <haquin@ganil.fr>
To: <tech-talk@aps.anl.gov>
Date: Tue, 24 Jan 2017 15:23:30 +0100
To me port 4001 is not correct, as I said in my previous post,
I use a Moxa 5150 on port 950 not 4001 and it works fine ...
see port list here 4001 is not in ...
http://www.moxa.com/support/faq/faq_detail.aspx?id=646
I've tried port 23 it works fine, 4001 doesn't work

hope it helps
br

Le 24/01/2017 à 15:09, Luca Cavalli a écrit :
Hi Mark,

is the routing table correctly configured?

Cheers,

Luca


On Tue, 2017-01-24 at 13:33 +0000, Mark Rivers wrote:
I'm trying to help Sunny to connect from Linux to a serial port on a Moxa
box.  It is not working, and I am stumped, so any ideas are welcome.

 From Windows he can telnet to it:

when I telnet from windows
telnet 192.168.127.254 4001
It prompts a blank screen and for other IP or ports like 192.168.127.254
5064, 192.168.127.34 4732 etc. it simply says host not available so I think
port 4001 should be good.
When he connects it to Linux he can ping it:

ping 192.168.127.254
PING 192.168.127.254 (192.168.127.254) 56(84) bytes of data.
64 bytes from 192.168.127.254<http://192.168.127.254>: icmp_seq=1 ttl=255
time=1.69 ms
64 bytes from 192.168.127.254<http://192.168.127.254>: icmp_seq=2 ttl=255
time=0.797 ms
64 bytes from 192.168.127.254<http://192.168.127.254>: icmp_seq=3 ttl=255
time=0.753 ms

ifconfig looks OK:
eth0      Link encap:Ethernet  HWaddr D8:CB:8A:9C:61:96
           inet addr:192.168.127.0  Bcast:192.168.127.255  Mask:255.255.255.0
           inet6 addr: fe80::dacb:8aff:fe9c:6196/64 Scope:Link
           UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
           RX packets:16 errors:0 dropped:0 overruns:0 frame:0
           TX packets:63 errors:0 dropped:0 overruns:0 carrier:0
           collisions:0 txqueuelen:1000
           RX bytes:1454 (1.4 Kb)  TX bytes:10799 (10.5 Kb)

arp looks good:
sbin/arp

Address                  HWtype  HWaddress           Flags
Mask            Iface
10.128.0.254             ether   00:00:5e:00:01:83   C                     eth
1
10.128.0.99              ether   00:04:96:6d:67:7f   C                     eth
1
10.128.0.253             ether   00:04:96:15:5e:70   C                     eth
1
10.128.0.238             ether   00:04:96:27:50:63   C                     eth
1
10.128.0.244             ether   00:04:96:34:ea:f2   C                     eth
1
10.128.0.252             ether   00:04:96:28:24:ce   C                     eth
1
10.128.0.237             ether   00:04:96:51:a8:8b   C                     eth
1
192.168.127.254          ether   00:90:e8:4e:6e:4e   C                     eth
0
10.128.0.251             ether   00:04:96:16:c7:50   C                     eth
1
10.128.0.249             ether   00:04:96:05:7a:13   C                     eth
1
10.128.0.247             ether   00:04:96:36:54:da   C                     eth
1
10.128.0.246             ether   00:04:96:21:d6:10   C                     eth
1

The firewall is disabled:
  systemctl status SuSEfirewall2.service

SuSEfirewall2 phase 2
    Loaded: loaded (/usr/lib/systemd/system/SuSEfirewall2.service; disabled)
    Active: inactive (dead)

But when he tries to telnet from the Linux box it times out:

telnet 192.168.127.254 4001
Trying 192.168.127.254...
telnet: connect to address 192.168.127.254<http://192.168.127.254>: Connection
timed out

Any ideas what could be causing this?

Thanks,
Mark




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Christophe Haquin
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Replies:
RE: problem connecting serial device with moxa 5150A Mark Rivers
References:
problem connecting serial device with moxa 5150A Sunny Badkul
RE: problem connecting serial device with moxa 5150A Mark Rivers
RE: problem connecting serial device with moxa 5150A Mark Rivers
Re: problem connecting serial device with moxa 5150A Luca Cavalli

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