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JOE-BULLITT

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Need help properly configuring RRAS on Server 2012R2. It won't route!

Hello Experts!

Thank you for your kind assistance.

I am trying to deploy a Windows 2012R2 server with RRAS VPN and am having a bit of trouble and cannot figure out what is wrong.  I searched the threads and I see others that had similar issues, but the solutions did not work for me.
(https://www.experts-exchange.com/questions/28480617/LAN-Routing-over-RRAS-VPN.html)
(https://www.experts-exchange.com/questions/26798399/RRAS-VPN-Routing-Problem.html)

The server is running and everything installed fine.  The VPN client can connect, but it will not route anywhere in the same LAN as the Windows RRAS server.  Through VPN, I can ping and RDP to the RRAS server via its private IP, but I cannot access any other servers in the same destination network.

My server installation has two NIC’s in two subnets and is running RRAS/VPN and DNS.  I also tried with just one NIC and one subnet, another time using two NIC’s and one subnet, and now two NIC’s and two subnets.  All unsuccessful.

Here is what I have so far…

Server Public IP: 10.1.0.100/24
Server Private IP: 10.1.1.100/24
Public Subnet: 10.1.0.0/24
Private Subnet: 10.1.1.0/24
Main Network: 10.1.0.0/16

DNS IP: 10.1.1.100/24 (DNS also listening on 10.1.0.100/24)
RRAS Server External IP: 10.1.0.100/24
RRAS Server Internal IP: 10.1.1.100/24
IPv4 address assignment using RRAS static pool:  10.1.1.101 – 10.1.1.120
IPv4 forwarding is enabled
Lan and Demand Dial routing is enabled

I can connect fine via VPN and I get an IP address, but I am unable to reach anything in the 10.1.1.x or 10.1.0.x network except the RRAS/VPN host itself.

Here are the results from the ipconfig on the client VPN adapter
PPP adapter vpn:
   Connection-specific DNS Suffix  . :
   Description . . . . . . . . . . . : vpn
   Physical Address. . . . . . . . . :
   DHCP Enabled. . . . . . . . . . . : No
   Autoconfiguration Enabled . . . . : Yes
   IPv4 Address. . . . . . . . . . . : 10.1.1.102(Preferred)
   Subnet Mask . . . . . . . . . . . : 255.255.255.255
   Default Gateway . . . . . . . . . :
   DNS Servers . . . . . . . . . . . : 10.1.0.100
   NetBIOS over Tcpip. . . . . . . . : Enabled

Here is the result from a tracert to the Public and Private NIC’s on the RRAS server itself:
>tracert 10.1.1.100
Tracing route to VPN [10.1.1.100] over a maximum of 30 hops:
  1    86 ms    88 ms    84 ms  VPN [10.1.1.101]
  2    87 ms    90 ms    91 ms  VPN [10.1.1.100]

>tracert 10.1.0.100
Tracing route to VPN [10.1.0.100] over a maximum of 30 hops:
  1   101 ms     *       89 ms  VPN [10.1.1.101]
  2    98 ms    97 ms    86 ms  VPN [10.1.0.100]

I found it curious that my first hop was to the IP 10.1.1.101.  Is this normal, or should it be configured somewhere?

Here is the result from a tracert to an IP in the subnet
>tracert 10.1.0.10
Tracing route to 10.1.0.10 over a maximum of 30 hops
  1    92 ms     *       90 ms  VPN [10.1.1.101]
  2     *        *        *     Request timed out.
  3     *        *        *     Request timed out.
  4     *        *        *     Request timed out.

Can someone please advise what I am missing, or what I should check?   Thank you!!!
VPNWindows Server 2012Windows NetworkingNetworkingTCP/IP

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JOE-BULLITT

8/22/2022 - Mon