Route subnet to remote site with dynamic IP

Hello all,

I have a “home-type” remote location (DSL-router-small net with two pc’s and an ip-printer)
I want to connect the office LAN to the remote subnet. I want to use the Windows 8 pc for this.
iprange office: 10.10.10.0/24
iprange remote location: 10.10.23.192/27
ip Mikrotik in the office: 10.10.10.55
The version of RouterOS installed on the Mikrotik is: 6.37.1
I am using a 2011UiAS

I have set up a l2tp ipsec VPN using the following guide:
http://www.firstdigest.com/2015/01/mikrotik-l2tp-with-ipsec-for-mobile-clients/
And i have added the 10.10.23.192/27 subnet to the ppp-secrets for this specific location
As soon as the Windows 8 pc makes the VPN, the default route goes over this tunnel to avoid having to make location specific routes.

The following now works:

  • from the office Mikrotik (172.31.86.1) i can ping the remote tunnel endpoint (172.31.86.2)
  • from the remote Windows 8 pc (10.10.23.193 / 172.31.86.2) i can ping servers in the office-net (e.g. 10.10.10.2)
  • from server 10.10.10.2 i can ping the remote tunnel endpoint (172.31.86.2)

This does not work:

  • from the pingable server 10.10.10.2 i cannot ping the ip of the Windows 8 pc (10.10.23.193)
  • from the Mikrotik (10.10.10.55) i cannot ping the ip of the Windows 8 pc (10.10.23.193)

Any help would be greatly appreciated!
Thank you in advance.
Kind regards,

Jeroen Hermans

Could it be just firewall on Windows 8 PC? Did you make sure it allows ping from anywhere?

Thank you Sob for your reply. I have disabled the Windows firewall to rule this out.
Kind regards