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Hi,Take a look at http://www.cisco.com/en/US/tech/tk583/tk372/technologies_white_paper09186a008018983e.shtml at the "Dual Hub - Dual DMVPN Layout" section. That should get you going.
Have you checked for an IP address conflict for the "problem" address?From the laptop, you could check your ARP table for the MAC address of the IP when it works, and check it again when it doesn't work. If the MAC changes when it doesn't work, then...
What hasnain321 meant, is that your space could have been assigned by a service provider (commonly called PA space), which means that you would need your second ISP to advertise addresses owned by the first ISP.This is not your case, since you have P...
Like you said, one way is to split your space in two, BUT.. announce each part to each different providers, with as-path prepending (ie. for a /23 block, announce 1st /24 to first provider, announce 1st /24 to second provider with as-path prepending,...
Ideally you would need a layer 3 device to route between the different networks.Maybe a layer 3 switch, or a layer 2 switch with a router (for a router-on-a-stick type of configuration)..[L3 switch]-- [Internet VLAN] - [PIX] - [Int.] | |---[HQ...
