Accessing lan from wireless on router

Is it possible to access my lan from a wireless connected to my router?

I used to use NAT loopback with DMZ on my TG582N, but the new 588V doesn't seem to support that.

I have a DNS server running locally, but obviously without access to it I can't use split horizon DNS.

Edited by hk11 (Sat 21-Sep-19 08:42:43)

Unless you are running with wireless isolation turned on, the wireless LAN is just an extension of the Ethernet LAN, i.e. IP addresses should be able to see each other pending local firewalls on devices themselves.

In reply to a post by hk11:

Is it possible to access my lan from a wireless connected to my router?
I used to use NAT loopback with DMZ on my TG582N, but the new 588V doesn't seem to support that.
I have a DNS server running locally, but obviously without access to it I can't use split horizon DNS.

NAT loopback would allow you to use the public address internally, through port forwarding. To use an internal DNS server from a wireless client, I would just expect to use the 192.168.x.x address in the DNS configuration.

If you can't ping a wired ethernet device from a wireless device, check the operating system firewalls.

Does the TG588V even have wireless isolation? I'm struggling to find anything but the most basic info on most routers.

So the TG588V does support NAT loopback?

In reply to a post by hk11:

So the TG588V does support NAT loopback?

I don't know. But you don't need NAT loopback to use your own DNS server from another device on the home network.

If you expose your own DNS server to the internet (not advised) through port forwarding, then as long as your public IP doesn't change, you can access it BOTH from its own internal and the public address IF NAT loopback works.

My original query is getting lost.

I don't need NAT loopback' if I can find a working alternative. NAT loopback is to access a web server which also handles my mail and webcam.

I don't need to access my DNS server from outside, just on the LAN.

In reply to a post by hk11:

My original query is getting lost.
I don't need NAT loopback' if I can find a working alternative. NAT loopback is to access a web server which also handles my mail and webcam.

Ok, so you have a server on your network: http://192.168.1.5 for example. You can access this from outside your home using a public IP, domain name, or dynamic IP, such as http://myhouse.dyndns.org

So if you are at home, on your WiFi using your phone or tablet, just use http://192.168.1.5
NAT loopback only matters if you want to use http://myhouse.dyndns.org from your home.

Split Horizon DNS, host files, etc, only matter if you want to use the same name inside and outside. On a Windows/Mac/Linux computer you can solve this in the HOSTS file, but if you are using iOS or Android, its not as easy.

Yes, I want to use the name to access the server. The lan IP doesn't work, possibly a firewall issue.

Yes, I mainly use an iPad to access things wirelessly.

In reply to a post by hk11:

Yes, I want to use the name to access the server. The lan IP doesn't work, possibly a firewall issue.

The IP not working doesn't make sense, as your port forwarding on the router is sending the traffic to the server on that IP.

Yes, I mainly use an iPad to access things wirelessly.

Then you need to find a router that does NAT loopback, or host your server in the cloud instead.

In reply to a post by jchamier:

The IP not working doesn't make sense, as your port forwarding on the router is sending the traffic to the server on that IP.

If it's not timing out, it could be that the web server will only serve the relevant page when accessed via hostname, depending on the virtualhost configuration it has.

Yes, I assumed firewall was OK as I can access from outside.

I have a router that does NAT loopback, just wanted to know if there was another way if the TG588V doesn't.

In reply to a post by Oliver341:

If it's not timing out, it could be that the web server will only serve the relevant page when accessed via hostname, depending on the virtualhost configuration it has.

Of course, thanks.

Easy to fix on a Win/Mac/Linux computer by editing the hosts file, but not easy for Android / iOS. The problem is finding out if a router does NAT loopback before buying is hard. As it is not a feature many people use. It is probably quite complex to engineer.

I assume Draytek models support it. I haven't tried my Asus.

All getting a bit complicated.

All I need to know is does the TG588V support NAT loopback and if not is there a way round it.

It would be nice if manufacturers supplied technical info or if folk on here could advise.

Edit: https://kitz.co.uk/routers/ doesn't even list Technicolor routers. Is there an alternative page I have missed?

Edited by hk11 (Sun 22-Sep-19 10:47:15)

In reply to a post by hk11:

All I need to know is does the TG588V support NAT loopback and if not is there a way round it.

The problem is how to answer that question. On a Windows/Mac/Linux computer inside your network, try pinging the public IP address or name of your website, and see if it responds.

In reply to a post by hk11:

It would be nice if manufacturers supplied technical info or if folk on here could advise.

People here can only advise on what they know about. I gave up running a server at home, my broadband was too slow upload, and I now buy a cheap Linux virtual server from a hosting company.

Technicolor (formerly Thomson) routers are not popular, and often given away free by ISPs because of their price.

Edit: https://kitz.co.uk/routers/ doesn't even list Technicolor routers. Is there an alternative page I have missed?

You could try the Small Net Builder Forums:
https://www.smallnetbuilder.com/
https://www.snbforums.com/

Edited by jchamier (Sun 22-Sep-19 11:23:24)

Yes, I realise people can only advise what they know about, but I assumed the opposite of you because ISPs gave the Technicolor away, folk would know the downside of them?

The main gripe is manufacturers don't give details. The older TG582N supports NAT loopback, so why wouldn't the newer model?

Looking at the sites you gave: thanks.

why wouldn't the newer model?

It's a cheap throwaway router/modem used primarily by bottom of the market ISP's whose customers want little more than to be able to browse, read their e-mail and watch Netflix.

And the TG582N isn't?

You've chosen to go with a cheap no frills ISP which uses a cheap no frills router that no doubt meets the requirements of >99.9% of the users of that ISP. Now there's no reason not to go with a cheap no frills ISP but given you choose to run a server from home then it's up to you to purchase and use a router/modem that meets your needs rather than (repeatedly) complain that the supplied cheap as chips router doesn't meet your needs. That the earlier TG582N router modem supported NAT loopback is irrelevant, the current model apparently does not is what matters. Unfortunate, yes, but not something that the vast majority of its users require. Similar problems exist with other ISP supplied routers, for example BT's current SmartHub doesn't, as far as I know, respond to pings and therefore can't be used with the likes of TB's Broadband Quality Monitor.

I've got a router that meets my needs, just awaiting details, so I can use it!

I'm not complaining; I was just trying to establish if the TG588 does what the TG582 does or not. Most importantly I was trying to get technical details, which I think should be supplied by the manufacturer, or failing that might be known by folk on here. I thought that was the whole idea of the forum?