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bonkas

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Topic # 143332 10-Apr-2014 19:33

Hi Guys,

We manage a small business of around 15 Users.

They have since bought another company which requires communication back to their main office for a particulair piece of software which has a client and server type setup but will only support local IP's.

At the main site they have a Dreytek Vigor 2710ADSL Router which is capable of a VPN Tunnel and the remote site has a Netgear DGN358 or something other - I believe this has VPN capabilities also (Will connect to a existing VPN connection)

They already run this particulair software at the main site and would like to run it at the remote location and have all data sent back to them main site.

The data it passes is very small.. Only a few megabytes a day at a guess.

So what we need is access to the server software at the main site on a particulair IP accessable from the remote site.

Will this setup work? can you recommend a ADSL Modem/Router that will talk with the Dreytek via IPSec?

Each time I have tried to VPN in the past with different model routers and gear I have failed every time and now its go time in this situation.

Regards.

chevrolux

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Reply # 1023069 10-Apr-2014 19:54

If they already have a DV2710 at one end might as well stick a draytek in at the other end and be done with it.
That way you have great hardware at each end and configuration will be familiar at each end.

Otherwise I would say stick in Mikrotik's at each end and you will be away.

Dynamic

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Reply # 1023174 10-Apr-2014 23:10

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Hi

If the application only supports local IPs even a VPN may not help. With a VPN one site will have (for example) 192.168.1.x addresses and the other site will have 192.168.2.x addresses, so the second site is not 'local', just easily routeable - i.e. easy to access via a virtually private network across the internet (VPN). It would be incredibly unusual and troublesome for both sites to have 192.168.1.x addresses.

If the Netgear is VPN capable, then you can do a site to site VPN between them. There will be some subtle differences between the VPN software between the two devices so a bit of trial and error may be involved. Alternatively a Draytek to Draytek VPN should be a relative piece of cake if you fancy replacing the Netgear.

If the application really does require a 'local' address, you might end up needing to look at a Remote Desktop Server (Terminal Server) for users at the second site to connect into t run the application 'locally' at the main site. For application performance reasons this may also be necessary if running the application over the VPN is just too slow when testing it out.

Feel free to give me a yell if you need some help.

Cheers,
Mike

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Zeon

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Reply # 1023196 11-Apr-2014 01:13

Site to site IPSEC tunnel will do what you want. I use PFsense for this personally and would recommend it but I hear that mikrotik etc. are pretty good at it. With IPSEC you need decent CPU power on your device to ensure it can encrypt/decrypt fast enough. The subnets will need to be different but your app shouldn't care - it will use the OSes networking stack so can pass it through the gateway to different subnets.

IPv6 removes the need for this but probably best to sue IPSEC if you need encryption (lots of large companies don't actually do this).

Funny timing as I was setting up a site-to-site IPSEC tunnel to the UK at the moment. Took a while to come up but now I can't get a server to join a domain due to LDAP error. I think it uses UDP and the 300ms latency is killing things :(

timmmay

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Reply # 1023206 11-Apr-2014 06:55

Would a proxy server help get a local IP address?

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bonkas

212 posts

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Reply # 1023207 11-Apr-2014 07:17

Thanks for the responses guys you have been a great help.

We are looking at Terminal Server to server a few other apps required in all offices but this particulair software uses clients on PC's and also physical terminal machines which can only be configured with a local IP as above.

Main site subnet is 192.168.1.0/24 and second site is 192.168.2.0/24

So I would like to configure the terminal on the second site to talk to for example 192.168.1.50 (PC on main site with server side software installed) and be able to communicate.

Yes the trouble I have had in the past is different hardware/settings and fiddling for hours trying to get VPN functioning.

chevrolux

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Reply # 1023219 11-Apr-2014 08:10

Even if you are looking in to using RDP I think an IPSEC tunnel would still be better.

It is a fairly simple task to configure and it so much more secure than just opening up your desktop to the world. I say it again, grab another Darytek and you will be sweet. Maybe look at using a beefier Draytek at the main site (maybe the DV2130) and shift the little 2710 to the remote site. Then if they get more offices there is a bit more beef in the main site to support more VPN tunnels.