A client of mine is part of a bigger group of companies running a MPLS for connectivity.
My Clients IP Address range is 192.168.13.0/24. We use this with DHCP and MASK of 255.255.255.0 and our addresses are running out quickly so I need to increase the capacity.
This leaves me with one of two options:
Change the subnet mask to 255.255.252.0 and add another subnet to the dhcp. This will allow me to use 192.168.12/22 or 192.168.12.0 to 192.168.15.255.
Add an IP on the router on 192.168.14.0/24 and do routing between the subnets on the router.
Problem with option 1 is that 192.168.12.0/24 is used by another company on the MPLS
Problem with option 2 is that all the traffic between the subnets 192.168.13.0/24 and 192.168.14.0/24 will need to go though the router on a 100mbps port? Is this assumption correct or will the devices be able to communicate "directly" without going through the router once the route is established?
I would love to just get a new /22 range as one is available, but all the work involved moving the IP addresses of servers, odbc's ERP system clients etc would be costly.
What would you do?