[Solved] IP Routing Question

[pcx-amateur]

Hi everybody,

at a branch office we have an ancient looking Alcatel OmniPCX 4400, at least that's what is printed on it.
That is what it looks like: https://www.ezylan.com/hinh/alcatel-vh.JPG

The problem is, that I cannot reach it from a different subnet than it's own.
When I telnet to the IP from a PC on the same subnet all is fine, but from another subnet or across the VPN connection I cannot reach it.
The first thing that came to my mind is a missing default gateway, but netadmin -m --> Routing --> Default Router Setup --> View shows the correct IP address of the default gateway.

Is this the right place where the gateway should be configured and if not, how do I set the default gateway?
Is there some kind of security setting blocking access from other subnets?

When I log in as root (which seems to get me to the underlying linux shell) and type "route list" I don't see any default route configuration, which again would explain my problem.

Any help is appreciated.
Thank you.

[cavagnaro]

Can you ping the gateway?
Execute command appli_identification to know if you have a Linux or Unix


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[frank]

hello,

it is most likely due to a bad route, either on your PC or on the switch, or if the routers in between don't route the route, or finally , if you have either a physical or soft VLAN <- have you checked this ?

Maybe your PC in another network is in a VLAN that can t talk to the "voice vlan" ?

[pcx-amateur]

Thank you both for your replies.

Yes, I can ping the gateway and every other host within the subnet. When I try to ping a host in a different subnet I get:
sendto: Unknown Error
ping: wrote xx.xx.xx.xx 64 chars, ret=-1

When I login via telnet it says "4.3 BSD UNIX (xa001008) (ttyp0)" so i guess it's Unix.

A bad/missing route/gateway is what I had in mind but it must be missing on this device and I don't know where to configure it other than what I wrote in my original post. Generally the routing works because I can reach other hosts in that subnet from basically everywhere.

When I log in as root and execute "route list" there is no default route, only connected networks, a loopback interface and x008001_tun.
Can I configure a default route from here or is there a graphical way (which I would prefer because I don't want to break anything)? When I click through the GUI I can get to a IP address configuration screen, but I cannot enter anything else then the IP address itself, the other fields are greyed out

Screenshot.png

I inherited the system when I started working here and it seems there is an ancient release version installed, at least that's what it looks like.

Thank you.

[murraya]

hi, Unix so very old and 4730 to manage
you say you used netadin -m. good place to start. the things to check there are...
show instalation (check correct subnet is used) if to open then default router would not be used
you have already checked default router and ok. (try to re apply the default route.
check static routes
any firewall in the default route?

[cavagnaro]

Wow, 4730 years haven't seen one.
I am intrigued about that tunnel...do you have other Alcatel pbx around? On another sites maybe?
Would be great if you post screnshots of everything you may see running netadmin -m command under Ethernet and routing menus.

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[pcx-amateur]

A little bit additional background information on this.
Some years back we acquired this company. They originally had Siemens equipment and the IT guys back than were looking for an easy way to integrate this new site into our existing Alcatel Environment (so yes there is other Alcatel Equipment around). It seems like the easiest way was to first install an old/used device and to upgrade it later in time. Well, and since then nothing happened because it just worked.
Although we do have Alcatel Equipment at our main site, I don't think they are really linked because we manually maintain a list of quick dial numbers on both systems (yeah, i know this sucks). So in the end I don't even know why they swapped out the Siemens stuff at all.

But back to topic.
Here is a screenshot with some telnet output:

Combined.png

Is this hardware actually still somehow "up to date" and it's only running an ancient software release or is the hardware itself totally outdated?

Thank you all.

[vad]

Default router shall be declared in PBX (when you connected via telnet or com port).
Your screenshot - just management for NMS, not for PBX.

Can you explain your real management:
PC - address, mask, router
PBX - address, mask, router (I think you can write right address because 192.168.x.x - private network) - from netadmin
VPN - I hope we say about data network. Not about IP/X25 tunnel between PBX's in network

[vad]

route list output - all string in the screenshot or no?
you have default router setup - what about static route?
I hope your PC address not from 172.30.x.x network?

[pcx-amateur]

At the moment there is an old desktop pc (windows xp) within the same subnet from where the configuration is done. That's where the screenshots come from. I wanted to virtualize this pc on our centeral infrastructure (because I don't think I can run this old software on a newer OS?!) but then noticed that I cannot reach the PBX (what does that actually stand for?).

Route list output is complete.
Do I really need a static route when I have a default route configured?

192.168.50.22/24 (PBX) ---- 192.168.50.10/24 (FW/GW) -------IPSEC VPN--------10.2.4.x/24 (Firewall/GW) ----- 10.2.4.x/24 (virtualized management pc)

The routing between the subnets definitely works, so the problem must be the routing on the PBX.
Why is there no default route listed on route list, although netadmin -m does show a default router?

Thanks.