what would be the default gateway of an exchange server placed in an 2008 domain environment. the exchange server is placed in the dmz of the network. the exchange server has 2 nic cards. one with private ip for access to internal lan users and another with public ip for owa access from internet. the perimeter of the n/w is protected by a firewall. all dc and other servers are placed in the inside n/w. the gateway for dc, and servers is the firewall. but for exchange server in dmz what would be the default gateway. thanks