W2008 + RRAS routing 2 Lan. second lan don't access internet

ManelNight

n00b
Joined
Dec 11, 2013
Messages
3
Hello,

I have this escenario:

ISP router 192.168.9.1/24 is DG of LAN1

Pc's on LAN1 192.168.9.x/24 DG 192.168.9.1

W2008 with two nic's:
- nic1: 192.168.9.2/24 dg:192.168.9.1
- nic2: 192.168.1.1/24 no dg

I install RRAS on the server and add route in ISP router to acces lan2:
192.168.1.0 255.255.255.0 gt 192.168.9.2

If configure RRAS Routing LAN:
- PC's LAN1 ping PC's LAN 2 OK
- PC's LAN2 ping PC's LAN 1 OK
-but pc's LAN2 don't have internet

else, if configure NAT on RRAS:
- PC's on LAN2 ping PC'S LAN1 and has internet
- but PC's LAN1 don't ping PC's LAN2

Can you help me??
I need to see the two networks and the two have internet.

Thanks
 

Biznatch

2[H]4U
Joined
Nov 16, 2009
Messages
2,224
Is there a setting anywhere for RRAS to act as a proxy? You want it configured as a router so the 2 LANs see each other. But when the problem is when a computer on LAN2 tries to reach the internet, it's looking for an IP that isn't in LAN1 or LAN2 subnet. So how does the RRAS know to route that traffic through the ISP gateway without acting as a proxy?
 

ManelNight

n00b
Joined
Dec 11, 2013
Messages
3
Hello,

RRAS don't act as a proxy.

Our client had the network 1. Now He has installed a wifi acces point and want to assign IP's by DHCP. The issue is that not having enough free IP's on the LAN 1 and want another network for wifi.
We had planned to install the DHCP server and the RRAS service to link the two networks and Internet access from the second network also.


RRAS send all traffic to the 192.168.9.1. The default route on RRAS is:
Destination Mask Gateway Interface
0.0.0.0 0.0.0.0 192.168.9.1 LAN1

Thanks
 

nessus

2[H]4U
Joined
Jan 30, 2001
Messages
2,221
I'm thinking this is most likely something to be configured on the ISP router because of this:

"else, if configure NAT on RRAS:
- PC's on LAN2 ping PC'S LAN1 and has internet"

There may be a difference between the NAT'd and non-NAT'd traffic coming from the RRAS 2008 box hitting the ISP router that is causing the issue due to the configuration of the ISP's router and how it handles outbound NAT traffic sourced from another network other than 192.168.9.0/24.

If the packets are making it through the ISPs router when they are NAT'd, it might still be a NAT related configuration that needs to be changed on the ISP's router to route outbound. I'm assuming that the ISP router is performing NAT based on its having an internal IP address space of 192.168.9.0/24.

Does Internet access work from the Windows 2008 box running RRAS when in non-NAT mode?
What are your results if you try running a tracert from a LAN 2 PC to an address on the Internet with the RRAS operating in non-NAT mode? (Google DNS responds to ICMP but if some hops in between don't respond, don't be surprised, "tracert -d 8.8.8.8")
Are packets making it to the ISP router and then being dropped there when you perform the tracert?
 
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