I'm working with a new parent company on trying to establish a trust between our two domains. (DomainA.com - parent company, DomainB - Our company) and I suspect we have a big problem. Both companies (prior to my time here) have 192.168.1.X as their subnets. Both have 192.168.1.3 as one of their DC/DNS servers.
It's my understanding that DNS needs to be working to resolve names between sites before we can establish the trust. We used a sonicwall to establish a tunnel between sites where in 172.16.X.X is used to translate addresses, such that my 192.168.1.1 is their 172.16.1.1.
Is this even a doable scenario, to get to DNS resolution and ultimately a trust between domains, or will we need to readdress the IP schemes?
If they ping a server on my network, it won't work if it responds with a 192.168.1.x address given they use that scheme on their side.