Unfortunately the Asus documentation for the Asus RT-AC87U router is a little light for some things. It’s an amazing router though, so below are some of the things I had to figure out over the last months that I thought might be good to share.

Asus_RT-AC87U_PlusnetIt works with Plusnet Fibre Unlimited

This is one of the answers I had to Google for before I brought it. When I did the “Quick Internet Setup” it actually half failed for me and only partially configured the router, so I had to go to WAN and finish off the configuration. Relatively straight forward however as the configuration is mostly automatic plus your username and password. See image.

In terms of performance, the Asus Router increased the speed of the service I experienced from 55Mbps to 60Mbps compared to the Thomson router Plusnet give you for free. The connection is much more stable too. As in completely stable instead of not very stable. I won’t miss the super slow UI of the Thomson either.

I have heard similar performance improvements when replacing BT Homehubs. I have read the latest BT Homehubs don’t require the BT Openreach modem white box that sit between your router and telephone line. The Asus RT-AC87U requires a modem like that BT Openreach one.

Asus_RT-AC87U_VPNSetting up Basic PPTP VPN

This allows you to remotely connect to your home network. PPTP is not secure, but I have not figured out how to get OpenVPN to work yet. Asus documentation is really lacking here. Even with PPTP it was a pain to work out how to get it working in a helpful way.

By default, it looks like the router puts clients connected by VPN into a separate Subnet or VLAN? So if you want to VPN to the router and then try and connect to a server or computer connected directly to the router, you can’t reach it. Perhaps there was a firewall option for this I missed.

The solution I found was to go to the advanced settings and first set the Client IP address range inside the same subnet. I also have to reconfigure the DHCP service to not issue IP’s for the 30 I want to use for VPN users. However, you then need to edit configured users with a Static Route.

Asus_RT-AC87U_VPN_ClientSee the two images for what I had to change to give your self an idea. If anyone knows how to setup OpenVPN or how to properly configure the VPN as I feel I bodged it to get it to work, please let me know.

Setting up IPv6 Tunnel

This is a little more complicated, but what I wanted to do was test the IPv6 functionality of this website but I didn’t have IPv6 functionality to do so. Hurricane Electric offer a free IPv6 tunnel service. So once registered, they provide a number of configuration options, but it took me a while to work out what goes where.

This may still not be correct. But it works and all my locally connected devices get IPv6 addresses and can resolve and access IPv6 websites. I have still not finished with this though as at present it looks like IPv6 takes priority over IPv4, but because I am using a tunnel that is not ideal as the performance is not as great as data is sent via Hurricane Electric servers instead of directly.

So this might be the sort of thing I turn on and off as needed.

Asus_RT-AC87U_IPv6