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ClintonK
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How to configure a Draytek to connect to another subnet?

I have a Draytek 2862 router and two subnets. The Mitel telephone network is on 192.168.1.0 and my Windows PCs are on 192.168.5.0
How can I configure the Draytek to allow me to access the Mitel hardware from a Windows PC?
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Martyn Spencer

8/22/2022 - Mon
Martyn Spencer

If the Draytek is the default gateway on the Windows PC and both subnets are known to it, it should already be able to route between the networks, unless you have rules that are preventing this.
ClintonK

ASKER
The Draytek is indeed the default gateway but I can't access the Mitel switch on http://192.168.1.2
Here is my LAN and VLAN config (if it's relevant)
General-Setup.pngVLAN.pngAs you can see I have made some config changes in the past but this is how it stands at the moment.
ClintonK

ASKER
Maybe I should have added in my original question that the LAN is a Windows Server 2016 network which has a DNS and DHCP server running. The PCs are members of the domain and obtain their IP address and DNS setting from the server.
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rwheeler23
Martyn Spencer

Is your Mitel switch on the local network (I presume that it is)? Is it plugged directly into a port on the Draytek?
ClintonK

ASKER
Yes to both.
Martyn Spencer

I have two choices for you then (there are others, but I will keep things simple). You can either set up the Windows PCs so that they have an IP address in the 192.168.1.x range (check out the instructions here: https://tunecomp.net/windows-10-multiple-ip-addresses/). This method would require static IP addresses being assigned in that range, which is not ideal unless you have very few PCs.

The other way is to have the Draytek route traffic for you. To do this, you need to set it so that you are using, for example, LAN2 and that LAN2 has the 192.168.1.x range. The Draytek will need an IP address in this range as well. You then need to assign LAN2 to the port that your Mitel is connected to. You should find if it is all working, a traceroute will show that traffic for 192.168.1.x will go via the Draytek and you should see a response.

Let me know if you need to know how to do any of the above.
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ClintonK

ASKER
Many thanks. I'll give it a go and report back.
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Martyn Spencer

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ClintonK

ASKER
That's really helpful, thanks.
Unfortunately I can't try that immediately because I've just disconnected the Internet and I can no longer access it remotely - doh. I'll pop into the office in the morning and turn it back on.
Martyn Spencer

I think at some point or other we have all done something like that :)
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William Peck
ClintonK

ASKER
I implemented the config but I discovered that there was a printer attached to the back of a phone so therefore didn't work after i made the router changes so I had to roll back the changes.
I plan to visit site and (if possible) move the printer to connect it to the .5 subnet
Martyn Spencer

Good to hear that the config worked bar the printer. Occasionally there can be a minor frustration such as devices plugged in where they are not expected.
ClintonK

ASKER
Somewhat of a complication. It appears that there is not just one device in the building connected to the back of a phone, there are many and it's treated as the norm to add extra devices on a network that doesn't have enough wall points. Not sure where to go next with this one. Are there alternative ways round this or am I stuck?
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Martyn Spencer

At present, we have created two separate networks on the Draytek by port and using the Draytek to route between them. The problem you are facing is that you have a mix of devices and the separation we have put in place is not sufficient. It may be possible to handle this using VLAN tagging, but it complicates the situation. It would also depend on whether the LAN and computer ports on your phones support VLAN tagging and having different tags on the LAN port and the computer port.

Before we go down that route, is there a reason why you cannot assign an IP address to the printers or other devices that are connected to the phones within the phone system's IP range? If you are wanting better isolation of devices, then VLAN tagging is going to be the way to go, provided the phones will work.
Martyn Spencer

There is some useful Draytek VLAN configuration detail present here and to delete it would be a little disappointing given the time it took to prepare answers.