Hi. I'm implementing our first, of many, IP-to-IP Gateways across our WAN. I've been made aware that this needs to be a hub and spoke setup with our main site (Site A) being the hub. For now we are just creating a single interconnect with one other remote site as a test. Both sites have CM 4.1.3, are using SCCP, and I have two 2811s reserved at each end for implementation. My problem (after scouring over countless Cisco documents, and having a fair amount of success) is still an issue of overall design. I'm under the impression that I should be able to combine the IPIPGW and via zone gatekeeper into one router on each side. So in my mind the diagram would go something like:
CCM--GKVIA/IPIPGW(2811 A) <--> GKVIA/IPIPGW(2811 B)--CCM
The closest diagram I've come across spreads everything over many devices, like so:
CCM--LegacyGK--GKVIA--IPIPGW <--> IPIPGW--GKVIA--LegacyGK--CCM
Also, in the same document I've read conflicting answers as to which type of trunk I would want to use in this scenario. One page says H.225(w/ GK) the next page ICT(w/ GK), so if anyone could direct me there, that would be awesome. I've read some pros and cons to both, made progress with ICT, but would like to see if I could get a more definitive answer on best usage. Thanks.