2 NIC, no internet connection
HI all
I have a windows 2003 server with 2 NICs. One NIC to ADSL modem and the other to LAN. I can't access Internet from this box when 2 NICs are enabled. I have to diable the LAN connection. Why? How browser decide which NIC to use when browsing internet?
Here are my settings:
IP Routing Enabled. . . . . . . . : Yes
NIC#1 (connect to ADSL modem)
IP Address. . . . . . . . . . . . : 172.16.0.2
Subnet Mask . . . . . . . . . . . : 255.255.0.0
Default Gateway . . . . . . . . . : 172.16.0.1 (the ADSL modem)
DNS Servers . . . . . . . . . . . : 172.16.0.1 (the ADSL modem)
NIC#2 (Connect to LAN)
IP Address. . . . . . . . . . . . : 192.168.0.1
Subnet Mask . . . . . . . . . . . : 255.255.255.0
Default Gateway . . . . . . . . . : 172.16.0.2 (NIC#1)
DNS Servers . . . . . . . . . . . : 172.16.0.1 (the ADSL modem)
I do have ISA 2006 installed, but even I dsiable all the services related to ISA, same thing happens
Also, I can get the other LAN machines connect to this box. Do I have to use Routing services? Anyone can point to a good tutorial on setting up a basic ISA environment?
Thanks
I have a windows 2003 server with 2 NICs. One NIC to ADSL modem and the other to LAN. I can't access Internet from this box when 2 NICs are enabled. I have to diable the LAN connection. Why? How browser decide which NIC to use when browsing internet?
Here are my settings:
IP Routing Enabled. . . . . . . . : Yes
NIC#1 (connect to ADSL modem)
IP Address. . . . . . . . . . . . : 172.16.0.2
Subnet Mask . . . . . . . . . . . : 255.255.0.0
Default Gateway . . . . . . . . . : 172.16.0.1 (the ADSL modem)
DNS Servers . . . . . . . . . . . : 172.16.0.1 (the ADSL modem)
NIC#2 (Connect to LAN)
IP Address. . . . . . . . . . . . : 192.168.0.1
Subnet Mask . . . . . . . . . . . : 255.255.255.0
Default Gateway . . . . . . . . . : 172.16.0.2 (NIC#1)
DNS Servers . . . . . . . . . . . : 172.16.0.1 (the ADSL modem)
I do have ISA 2006 installed, but even I dsiable all the services related to ISA, same thing happens
Also, I can get the other LAN machines connect to this box. Do I have to use Routing services? Anyone can point to a good tutorial on setting up a basic ISA environment?
Thanks
Firstly - you cannot have a default gateway on both nics. If you ARE using ISA you cannot have entries for the same subnet on both nics either.
ASKER
Thanks Keith! I just removed the default gateway from the LAN NIC (192.168.0.1) and it works! Could you please explain the reason behind it to me? It's still like a mystery to me.
BTW, as I mentioned in my post, I can't get other machines (for example 192.168.0.10) on the LAN connect to this box (192.168.0.1). I can ping to other machine from this box, but no the opposite way - This happened even when ISA is disabled. Also, windows firewall is disabled as well.
What I am trying to do is get all LAN machines connect to internet through this machine. I am new to ISA, please help.
Thanks
BTW, as I mentioned in my post, I can't get other machines (for example 192.168.0.10) on the LAN connect to this box (192.168.0.1). I can ping to other machine from this box, but no the opposite way - This happened even when ISA is disabled. Also, windows firewall is disabled as well.
What I am trying to do is get all LAN machines connect to internet through this machine. I am new to ISA, please help.
Thanks
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ASKER
Thansk
ASKER