My Windows 2008 server R2 has two NICs. First NIC is connected to my ISP (IP assigned with DHCP). Second NIC is dedicated to LAN communication and is connected to HP ProCurve switch "trunk" port with multiple VLANs (Vlan7 and Vlan8).
Configuration of these card are:
First NIC: All settings are from DHCP. (ISPs NIC)
Seconf NIC (Local Area connections): -LAN7: 192.168.7.1 Mask: 255.255.255.0 Gateway: blank -LAN8: 192.168.8.1 Mask: 255.255.255.0 Gateway: blank
(Pings from VLAN7 and VLAN8 workstations to server are successful, with such network configurations: PC1/ IP: 192.168.7.100 Mask: 255.255.255.0 Gateway: 192.168.7.1, etc. )
After enabling RRAS on Windows 2008 server with NAT option, I cannot get any of VLANs (VLAN7, VLAN8) gain access to internet (looks like Windows does not know how to translate address to send traffic to outgoing interface).
When connecting NIC2 to simple access port on switch, in this case removing VLANs, then NAT works great.
Looking for help, thanks.