I have a domain controller that is also a DNS server for our internal clients it has two network cards within the Machine, presently one of them is disabled and the other is configured in the following :
IP Address : 10.0.0.4
Subnet : 255.255.255.0
gateway : 10.0.0.60
DNS Server : 10.0.0.4
I want to setup the other network card with a completely seperate IP Address so that i can configure DHCP on that card to lease addresses, however when ever i setup the second card and enable it, all the domain clients loose internet access.
the details i am entering in the second card are as follows.
IP Address : 172.20.10.1
Subnet : 255.255.255.0
gateway : 172.20.10.254
DNS Server : 10.0.0.4
What am i doing wrong? the minute i disable the second card again, the clients regain internet access and are able to work as normal.
There should not be a separate gateway set for the second card, unless that is also a valid route to all external networks.
The second gateway will become the default one when you enable it, losing the first one.
The DHCP pool SHOULD push a separate gateway to the clients, but that would be the same IP as you assigned to the card, i.e. 172.20.10.1