Thanks for everyone who responded. I did some testing and here is what I found.
Our current ISP's DNS is not reachable from the outside world it seems that we use an internal DNS server which then forwards the request to the internal side of there firewall which forwards to there external DNS and then out to the world. I have tested using our new ISP's DNS server from our old ISP connections and it seems to work just fine. It looks like I will need to touch every machine and correct there DNS entries. So if I must go to each workstation that I will just stand up a DHCP server. This correct the problem once and for all. That way if anything changes DNS, Subnet, IP address I will be able to change it on the server and be done with it. It would make life alot simpler. Thanks again for everyones input... Michael ""Michael Hair"" wrote in message [EMAIL PROTECTED]">news:[EMAIL PROTECTED]... > I was wondering what is the best way to take care of the following: > > I have been using a private address space behind a Cisco 4500 router > connected up to our current ISP using NAT, now we want to move our > connection from our current ISP to a new ISP with better bandwidth. My > problem is that we don't want to change all our client machines TCP/IP > settings, which are all static, for some reason or another they were all > setup to use our ISP's DNS. Not my idea but that another problem. So how can > I setup our router to forward requests looking from our current ISP's DNS to > our new ISP's DNS without touching all the client machines. > > Would the best way be to use policy-base routing? > > Would a static route work? > > Could I use a static route under NAT? > > If someone could proved me a sample of how you could do this I would be > greatful... > > Thanks > Michael Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=35779&t=35703 -------------------------------------------------- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
