I have a customer that would like to implement VPN between their office and a remote office ASAP, they just order another t1 to implement CEF(load balance) with 2 t1s with existing 1720 router, I know that we can do that with this particular router, I was wondering what version of IOS release should be used and whats the minimum memory needed for this implementation.
They have a 1 WIC-1DSU-T1 DSU\CSU installed, I need to order another one, should that work for me and just upgrade the IOS or do I have to order 2x WIC-1DSU-T1 8/32 VPN/FW/3DES since has a built in Firewall / VPN functionality
Also there is a need of a firewall to be added to the network, the client is a small office and a budget is definitely a plus to consider, can we use this router to function with all 3 options or should we get a separate PIX for the effect.
I am not an expert on PIX / Firewall, so If possible I would like to get ideas or links for the configs to implement all 3 VPN / CEF / Firewall. any ideas would be appreciated.
Thank you all in advance for any ideas, I am definitely stuck with no answers for my customer.