Like every other website on the planet, SmallNetBuilder uses cookies. Our cookies track login status, but we only allow admins to log in anyway, so those don't apply to you. Any other cookies you pick up during your visit come from advertisers, which we don't control.
If you continue to use the site, you agree to tolerate our use of cookies. Thank you!

Router Charts

Click for Router Charts

Router Ranker

Click for Router Ranker

NAS Charts

Click for NAS Charts

NAS Ranker

Click for NAS Ranker

More Tools

Click for More Tools

LAN & WAN Reviews

VPN Site-to-Site

Figure 15 below from D-Link's Product Data Sheet depicts using two D-Link DFL routers to create a site-to-site VPN connecting two small office LANs. As you can see in this example network, there is a Mail Server in the Small Office LAN on the left, which is securely accessible to the PCs in the Satellite Office LAN on the right, via this VPN.

Site-to-site VPN
Click to enlarge image

Figure 15: Diagram of a typical site-to-site VPN

Compared to the VPN Client, site-to-site VPN functionality was easy. I was able to set up a site-to-site VPN using a DFL-CPG310 at one location and a Linksys RV042 as the other. 

With the Site-to-Site configuration wizard, I used AES-128 Encryption and SHA-1 Authentication for IPSec Phase 1 and Phase 2 negotiation. I selected Diffie-Hellman Group 1 on both Phase 1 and Phase 2, and enabled Keep Alive to keep the tunnel active. 

Each side used the other's Dynamic DNS to locate and recognize the other side, and authentication was handled through a manually entered Shared Secret Key (PSK), which is a common text string you enter on both routers. Figure 16 is a status screen from the DFL-CPG310 showing the VPN has been successfully established, linking the /24 LAN of the D-Link to the /24 LAN of the Linksys.

VPN status
Click to enlarge image

Figure 16: VPN status screen showing connection
Check out the slideshowFor more detail, please see the slide show of screen shots showing all the configuration options selected on both the D-Link and the Linksys.

I was impressed with the D-Link's site-to-site VPN stability and resiliency. I left this site-to-site VPN running continuously, and it remained up for the several weeks I tested this router. I configured a couple of the PCs on the D-Link LAN to run automatic backups to a storage device on the Linksys LAN over this VPN, and they all ran without error.


Let's take a look at the throughput measurements from our Router Performance Charts in Figure 17 and Figure 18 below. Comparing WAN to LAN and LAN to WAN throughput for routers with VPN capability, we can see the DFL-CPG310's performance is near the top with 39 Mbps WAN to LAN and 45 Mbps LAN to WAN throughput.

WAN to LAN Throughput
Click to enlarge image

Figure 17: WAN to LAN throughput comparison chart

LAN to WAN Throughput
Click to enlarge image

Figure 18: LAN to WAN throughput comparison chart

More LAN & WAN

Wi-Fi System Tools
Check out our Wi-Fi System Charts, Ranker and Finder!

Support Us!

If you like what we do and want to thank us, just buy something on Amazon. We'll get a small commission on anything you buy. Thanks!

Over In The Forums

Hello, I am a novice internet user/gamer and I am experiencing some issues with my upload/download speeds, especially with the upload speeds. I have e...
I have been using the RT-AC87 for about 5 years now, and it has always been a rock solid router in my opinion. My friend has the opportunity to purcha...
Im getting agitated with the constant deletion of disgruntled members complaints and one of my own recently as well with no response yet again to the ...
I found a foible in the "Wireless MAC Filter" capability. I would call it a bug but perhaps it was done on purpose. I have only tested this in the "re...
Hi all,Im having an issue with pixteltls, I live in the netherlands an Im using the Rabobank as bankingwith my phone I can not use the app from my ban...

Don't Miss These

  • 1
  • 2
  • 3