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Your major issue is the overlapping subnets.Say you have the following topology:LAN-A: 10.0.1.0/24PC-A: 10.0.1.100/24LAN-B: 10.0.0.0/22PC-B: 10.0.0.100/22A router is used to provide routing between these 2 subnets and the IP address on the 2 interfac...
Something weird about your topology:1) If you're using 3550/3750 then why do you still need a router to do the routing?2) VLAN 1 subnet is having a 22-bit mask which means that it includes 10.1.0.0/24, 10.1.1.0/24, 10.1.2.0/24 and 10.1.3.0/24. This s...
Are you using point-to-multipoint interface on your hub? As far as I know an inbound multicast packet will not be forwarded out to the same interface. Building GRE tunnels between spokes may be a workaround for this issue.
It really depends on the solution that your ISP provides.If your ISP is providing an MPLS network between main and remote offices then the router configuration can be really simple like default route or some static routes or simple BGP configuration....
Some possible ways to do this:1) Head office has 1 big internet connection, remote has use DSL to connect to internet, then use GRE+IPSEC VPN tunnel via the Internet.2) MPLS between head office and remote offices
