Backbone IP addressing for Washington School District

Data Centre IP addressing requirements:

   - a pair of IP addresses for connection through Frame Relay to the ISP

   - 4 T1 Point-to-Point connections with Service Center Router, so 4 pairs of IP addresses are needed

   - 4 T1 Point-to-Point connections with Shaw Butte Router, so 4 pairs of IP addresses are needed

   - 11 T1 Point-to-Point connections with the respective 11 schools that are connected to Data Center, so 11 pairs of IP addresses are needed

Location	Network	IPs class and type	IP addresses
Data Centre	150.150.32.0/19 1 subnet used for connecting with ISP	public class, static IPs	subnet	150.150.32.0
			broadcast	150.150.63.255
			IPs used	150.150.32.1 150.150.32.2
Data Centre	150.150.96.0/19 1 subnet used for 4 T1 lines connecting to Service Centre	public class, static IPs	subnet:150.150.96.0; broadcast:150.150.127.255; IPs used: 150.150.96.1 150.150.96.2 150.150.96.3 150.150.96.4 150.150.96.5 150.150.96.6 150.150.96.7 150.150.96.8
Data Centre	150.150.64.0/19 1 subnet used for 4 T1 lines connecting to Shaw Butte	public class, static IPs	subnet:150.150.64.0 broadcast:150.150.95.255; IPs used: 150.150.64.1 150.150.64.2 150.150.64.3 150.150.64.4 150.150.64.5 150.150.64.6 150.150.64.7 150.150.64.8
Data Centre	150.150.160.0/25 11x2 subnets used for 11 T1 lines connecting 11 schools with Data Centre Router	public class, static IPs	subnet1_1:150.150.161.0; broadcast:150.150.161.127; IPs used: 150.150.161.1... 150.150.161.126 subnet1_2:150.150.161.128 broadcast: 150.150.161.255 IPs used: 150.150.161.129... 150.150.161.130 ... subnet11_1:150.150.171.0; broadcast:150.150.171.127; IPs used: 150.150.171.1 150.150.171.2

- Assigning 11 subnets for the 11 schools will be made on Data Center Router using subinterfaces; for each school we have a whole class,e.g. 150.150.161.0, subnetted into two subnets, one subnet for servers (150.150.161.0)and one subnet for admin/teachers network computers (150.150.161.128).

Data Center Detailed IP addressing scheme:

Data Center Router Interface	IP address	Remote Location Interface	IP address
Serial 0	150.150.32.1	ISP - Serial 1	150.150.32.2
Serial 1	150.150.96.1	Service Center - Serial 0	150.150.96.2
Serial 2	150.150.96.3	Service Center - Serial 1	150.150.96.4
Serial 3	150.150.96.5	Service Center - Serial 2	150.150.96.6
Serial 4	150.150.96.7	Service Center - Serial 3	150.150.96.8
Serial 5	150.150.64.1	Shaw Butte - Serial 0	150.150.64.2
Serial 6	150.150.64.3	Shaw Butte - Serial 1	150.150.64.4
Serial 7	150.150.64.5	Shaw Butte - Serial 2	150.150.64.6
Serial 8	150.150.64.7	Shaw Butte - Serial 3	150.150.64.8
Serial 9, subintf 0	150.150.161.1	Desert Slope School Serial 0	150.150.161.2
Serial 9, subintf 1	150.150.162.1	Sunnyslope School Serial 0	150.150.162.2
Serial 9, subintf 2	150.150.163.1	Mountain View School - Serial 0	150.150.163.2
Serial 9, subintf 3	150.150.164.1	Road Runner School Serial 0	150.150.164.2
Serial 9, subintf 4	150.150.165.1	Washington School Serial 0	150.150.165.2
Serial 9, subintf 5	150.150.166.1	Lake View School Serial 0	150.150.166.2
Serial 9, subintf 6	150.150.167.1	John Jacobs School Serial 0	150.150.167.2
Serial 9, subintf 7	150.150.168.1	Iron Wood School Serial 0	150.150.168.2
Serial 9, subintf 8	150.150.169.1	Desert Foothills School Serial 0	150.150.169.2
Serial 9, subintf 9	150.150.170.1	Chaparral School Serial 0	150.150.170.2
Serial 9, subintf 10	150.150.171.1	Cholla School Serial 0	150.150.171.2