 Re: define internal network subnet
You can't supernet 3 class Cs, you need 4 contiguous ones for that (and with the right numbers too). Here are your options:
- If you can do it with only 2, supernet 2 of them (10.10.70.0/23)
- Try to get 4 and get them starting at 68, 72, 76, etc... then you can use a /22 netmask
- You can use them all with /24 masks. In this case you can use an internal router to route between them (L3 switch or something), or you can define sub interfaces on the firewall, 1 per range. |