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

Subject: Re: problem connecting serial device with moxa 5150A
From: Luca Cavalli <[email protected]>
To: "[email protected]" <[email protected]>
Date: Tue, 24 Jan 2017 14:09:08 +0000
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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Replies:
Re: problem connecting serial device with moxa 5150A haquin
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

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