Retying as first message bounced from lyris Hi, I have the following network setup, two physical separate networks in the same building one for development and one for the main business. We have just implemented an ISA Server that has three NICs in one nic for both networks and the third that routes to the internet. On the client machines the default gateway are pointing to this box as a bridge to the internet and a global exchange server that sits on this box. My question is that I want to be able to bridge the two networks together so that network one 192.168.42.x can ping network two 192.168.43.x and vice versa. Does anybody have any ideas? Kind Regards, Chris Bond -- (¯`·.¸¸.·´¯`·.¸¸.·´ Chris Bond `·.¸¸.·´¯`·.¸¸.·´¯) email : chris@xxxxxxxxxxxx web : www.logics.co.uk