Hello,
I am changing ISPs from one that is provided by DS1s to one provided via fiber. I currently have the DS1s and the new fiber connection coming into a Cisco 3640 which then connects to a Cisco PIX 515 which provides the NAT for the network. The users on the network currently have static IPs and DNS entries. I would like to redirect all DNS queries to DNS Server: A.B.C.D(on remote DS1 network) to DNS Server: E.F.G.H(on remote fiber network) This way, the static dns server entries in many users computers will still work during an overlap of DS1 served DNS server A.B.C.D going down, and some users static entries not being changed in time for the transition.
So.. I can do this with the 3640 or the PIX. I'd prefer to do it with the PIX if possible. Though seemingly simple, I cannot for the life of me find a command or group of commands that changes the destination IP of the outgoing packets, and changes the "source" of the returning packets so that it is all transparent to the users machine. If someone could throw me a bone and even tell me what direction I should be looking - I would be very grateful! Thank you if you even read this ranty question this far!
Cheers,
Oscill8
I am changing ISPs from one that is provided by DS1s to one provided via fiber. I currently have the DS1s and the new fiber connection coming into a Cisco 3640 which then connects to a Cisco PIX 515 which provides the NAT for the network. The users on the network currently have static IPs and DNS entries. I would like to redirect all DNS queries to DNS Server: A.B.C.D(on remote DS1 network) to DNS Server: E.F.G.H(on remote fiber network) This way, the static dns server entries in many users computers will still work during an overlap of DS1 served DNS server A.B.C.D going down, and some users static entries not being changed in time for the transition.
So.. I can do this with the 3640 or the PIX. I'd prefer to do it with the PIX if possible. Though seemingly simple, I cannot for the life of me find a command or group of commands that changes the destination IP of the outgoing packets, and changes the "source" of the returning packets so that it is all transparent to the users machine. If someone could throw me a bone and even tell me what direction I should be looking - I would be very grateful! Thank you if you even read this ranty question this far!
Cheers,
Oscill8
