IPv6 Bit-based Planning

Supernet and Target

IPv6 address

Base prefix

Target prefix (e.g., /64)

Available bits between base and target: 16 • Allocated to fields: 8 • Leftover (B): 8

Fields

bits

Dependent on

capacity: 16

bits

Dependent on

capacity: 16

Auto-apply bit changes

Total combinations: 256 • Subnets per combo at /64: 256

Bit allocation diagram

2001:db8:1234:::

::/64

/48 + 8 (fields) + 8 (B) = /64

L— Location(4 bits)

T— Use type(4 bits)

B(8 bits)

Boxes represent bits between /48 and /64. Fields appear in order, followed by remaining B bits.

Combination overview

Legend:

• 2% • 1 children

2001:db8:1234:::/56

• 2% • 1 children

2001:db8:1234:100:::/56

• 2% • 1 children

2001:db8:1234:200:::/56

• 2% • 1 children

2001:db8:1234:300:::/56

• 2% • 1 children

2001:db8:1234:400:::/56

• 2% • 1 children

2001:db8:1234:500:::/56

• 2% • 1 children

2001:db8:1234:600:::/56

• 2% • 1 children

2001:db8:1234:700:::/56

• 2% • 1 children

2001:db8:1234:800:::/56

• 2% • 1 children

2001:db8:1234:900:::/56

• 2% • 1 children

2001:db8:1234:a00:::/56

• 2% • 1 children

2001:db8:1234:b00:::/56

• 2% • 1 children

2001:db8:1234:c00:::/56

• 2% • 1 children

2001:db8:1234:d00:::/56

• 2% • 1 children

2001:db8:1234:e00:::/56

• 2% • 1 children

2001:db8:1234:f00:::/56

• 2% • 1 children

2001:db8:1234:1000:::/56

• 2% • 1 children

2001:db8:1234:1100:::/56

• 2% • 1 children

2001:db8:1234:1200:::/56

• 2% • 1 children

2001:db8:1234:1300:::/56

• 2% • 1 children

2001:db8:1234:1400:::/56

• 2% • 1 children

2001:db8:1234:1500:::/56

• 2% • 1 children

2001:db8:1234:1600:::/56

• 2% • 1 children

2001:db8:1234:1700:::/56

• 2% • 1 children

2001:db8:1234:1800:::/56

• 2% • 1 children

2001:db8:1234:1900:::/56

• 2% • 1 children

2001:db8:1234:1a00:::/56

• 2% • 1 children

2001:db8:1234:1b00:::/56

• 2% • 1 children

2001:db8:1234:1c00:::/56

• 2% • 1 children

2001:db8:1234:1d00:::/56

• 2% • 1 children

2001:db8:1234:1e00:::/56

• 2% • 1 children

2001:db8:1234:1f00:::/56

• 2% • 1 children

2001:db8:1234:2000:::/56

• 2% • 1 children

2001:db8:1234:2100:::/56

• 2% • 1 children

2001:db8:1234:2200:::/56

• 2% • 1 children

2001:db8:1234:2300:::/56

• 2% • 1 children

2001:db8:1234:2400:::/56

• 2% • 1 children

2001:db8:1234:2500:::/56

• 2% • 1 children

2001:db8:1234:2600:::/56

• 2% • 1 children

2001:db8:1234:2700:::/56

• 2% • 1 children

2001:db8:1234:2800:::/56

• 2% • 1 children

2001:db8:1234:2900:::/56

• 2% • 1 children

2001:db8:1234:2a00:::/56

• 2% • 1 children

2001:db8:1234:2b00:::/56

• 2% • 1 children

2001:db8:1234:2c00:::/56

• 2% • 1 children

2001:db8:1234:2d00:::/56

• 2% • 1 children

2001:db8:1234:2e00:::/56

• 2% • 1 children

2001:db8:1234:2f00:::/56

• 2% • 1 children

2001:db8:1234:3000:::/56

• 2% • 1 children

2001:db8:1234:3100:::/56

• 2% • 1 children

2001:db8:1234:3200:::/56

• 2% • 1 children

2001:db8:1234:3300:::/56

• 2% • 1 children

2001:db8:1234:3400:::/56

• 2% • 1 children

2001:db8:1234:3500:::/56

• 2% • 1 children

2001:db8:1234:3600:::/56

• 2% • 1 children

2001:db8:1234:3700:::/56

• 2% • 1 children

2001:db8:1234:3800:::/56

• 2% • 1 children

2001:db8:1234:3900:::/56

• 2% • 1 children

2001:db8:1234:3a00:::/56

• 2% • 1 children

2001:db8:1234:3b00:::/56

• 2% • 1 children

2001:db8:1234:3c00:::/56

• 2% • 1 children

2001:db8:1234:3d00:::/56

• 2% • 1 children

2001:db8:1234:3e00:::/56

• 2% • 1 children

2001:db8:1234:3f00:::/56

Combinations (/ 56)

Total: 256

Rows

Page

L	T	Signature	Combo prefix	/ 64 subnets
0	0	L=0, T=0	2001:db8:1234:::/56	256
0	1	L=0, T=1	2001:db8:1234:100:::/56	256
0	2	L=0, T=2	2001:db8:1234:200:::/56	256
0	3	L=0, T=3	2001:db8:1234:300:::/56	256
0	4	L=0, T=4	2001:db8:1234:400:::/56	256
0	5	L=0, T=5	2001:db8:1234:500:::/56	256
0	6	L=0, T=6	2001:db8:1234:600:::/56	256
0	7	L=0, T=7	2001:db8:1234:700:::/56	256
0	8	L=0, T=8	2001:db8:1234:800:::/56	256
0	9	L=0, T=9	2001:db8:1234:900:::/56	256
0	10	L=0, T=10	2001:db8:1234:a00:::/56	256
0	11	L=0, T=11	2001:db8:1234:b00:::/56	256
0	12	L=0, T=12	2001:db8:1234:c00:::/56	256
0	13	L=0, T=13	2001:db8:1234:d00:::/56	256
0	14	L=0, T=14	2001:db8:1234:e00:::/56	256
0	15	L=0, T=15	2001:db8:1234:f00:::/56	256
1	0	L=1, T=0	2001:db8:1234:1000:::/56	256
1	1	L=1, T=1	2001:db8:1234:1100:::/56	256
1	2	L=1, T=2	2001:db8:1234:1200:::/56	256
1	3	L=1, T=3	2001:db8:1234:1300:::/56	256
1	4	L=1, T=4	2001:db8:1234:1400:::/56	256
1	5	L=1, T=5	2001:db8:1234:1500:::/56	256
1	6	L=1, T=6	2001:db8:1234:1600:::/56	256
1	7	L=1, T=7	2001:db8:1234:1700:::/56	256
1	8	L=1, T=8	2001:db8:1234:1800:::/56	256
1	9	L=1, T=9	2001:db8:1234:1900:::/56	256
1	10	L=1, T=10	2001:db8:1234:1a00:::/56	256
1	11	L=1, T=11	2001:db8:1234:1b00:::/56	256
1	12	L=1, T=12	2001:db8:1234:1c00:::/56	256
1	13	L=1, T=13	2001:db8:1234:1d00:::/56	256
1	14	L=1, T=14	2001:db8:1234:1e00:::/56	256
1	15	L=1, T=15	2001:db8:1234:1f00:::/56	256
2	0	L=2, T=0	2001:db8:1234:2000:::/56	256
2	1	L=2, T=1	2001:db8:1234:2100:::/56	256
2	2	L=2, T=2	2001:db8:1234:2200:::/56	256
2	3	L=2, T=3	2001:db8:1234:2300:::/56	256
2	4	L=2, T=4	2001:db8:1234:2400:::/56	256
2	5	L=2, T=5	2001:db8:1234:2500:::/56	256
2	6	L=2, T=6	2001:db8:1234:2600:::/56	256
2	7	L=2, T=7	2001:db8:1234:2700:::/56	256
2	8	L=2, T=8	2001:db8:1234:2800:::/56	256
2	9	L=2, T=9	2001:db8:1234:2900:::/56	256
2	10	L=2, T=10	2001:db8:1234:2a00:::/56	256
2	11	L=2, T=11	2001:db8:1234:2b00:::/56	256
2	12	L=2, T=12	2001:db8:1234:2c00:::/56	256
2	13	L=2, T=13	2001:db8:1234:2d00:::/56	256
2	14	L=2, T=14	2001:db8:1234:2e00:::/56	256
2	15	L=2, T=15	2001:db8:1234:2f00:::/56	256
3	0	L=3, T=0	2001:db8:1234:3000:::/56	256
3	1	L=3, T=1	2001:db8:1234:3100:::/56	256
3	2	L=3, T=2	2001:db8:1234:3200:::/56	256
3	3	L=3, T=3	2001:db8:1234:3300:::/56	256
3	4	L=3, T=4	2001:db8:1234:3400:::/56	256
3	5	L=3, T=5	2001:db8:1234:3500:::/56	256
3	6	L=3, T=6	2001:db8:1234:3600:::/56	256
3	7	L=3, T=7	2001:db8:1234:3700:::/56	256
3	8	L=3, T=8	2001:db8:1234:3800:::/56	256
3	9	L=3, T=9	2001:db8:1234:3900:::/56	256
3	10	L=3, T=10	2001:db8:1234:3a00:::/56	256
3	11	L=3, T=11	2001:db8:1234:3b00:::/56	256
3	12	L=3, T=12	2001:db8:1234:3c00:::/56	256
3	13	L=3, T=13	2001:db8:1234:3d00:::/56	256
3	14	L=3, T=14	2001:db8:1234:3e00:::/56	256
3	15	L=3, T=15	2001:db8:1234:3f00:::/56	256

Loading…

Signature

Combo prefix

/ 64 subnets

Actions

L=0, T=0

2001:db8:1234:::/56

256

L=0, T=1

2001:db8:1234:100:::/56

256

L=0, T=2

2001:db8:1234:200:::/56

256

L=0, T=3

2001:db8:1234:300:::/56

256

L=0, T=4

2001:db8:1234:400:::/56

256

L=0, T=5

2001:db8:1234:500:::/56

256

L=0, T=6

2001:db8:1234:600:::/56

256

L=0, T=7

2001:db8:1234:700:::/56

256

L=0, T=8

2001:db8:1234:800:::/56

256

L=0, T=9

2001:db8:1234:900:::/56

256

L=0, T=10

2001:db8:1234:a00:::/56

256

L=0, T=11

2001:db8:1234:b00:::/56

256

L=0, T=12

2001:db8:1234:c00:::/56

256

L=0, T=13

2001:db8:1234:d00:::/56

256

L=0, T=14

2001:db8:1234:e00:::/56

256

L=0, T=15

2001:db8:1234:f00:::/56

256

L=1, T=0

2001:db8:1234:1000:::/56

256

L=1, T=1

2001:db8:1234:1100:::/56

256

L=1, T=2

2001:db8:1234:1200:::/56

256

L=1, T=3

2001:db8:1234:1300:::/56

256

L=1, T=4

2001:db8:1234:1400:::/56

256

L=1, T=5

2001:db8:1234:1500:::/56

256

L=1, T=6

2001:db8:1234:1600:::/56

256

L=1, T=7

2001:db8:1234:1700:::/56

256

L=1, T=8

2001:db8:1234:1800:::/56

256

L=1, T=9

2001:db8:1234:1900:::/56

256

L=1, T=10

2001:db8:1234:1a00:::/56

256

L=1, T=11

2001:db8:1234:1b00:::/56

256

L=1, T=12

2001:db8:1234:1c00:::/56

256

L=1, T=13

2001:db8:1234:1d00:::/56

256

L=1, T=14

2001:db8:1234:1e00:::/56

256

L=1, T=15

2001:db8:1234:1f00:::/56

256

L=2, T=0

2001:db8:1234:2000:::/56

256

L=2, T=1

2001:db8:1234:2100:::/56

256

L=2, T=2

2001:db8:1234:2200:::/56

256

L=2, T=3

2001:db8:1234:2300:::/56

256

L=2, T=4

2001:db8:1234:2400:::/56

256

L=2, T=5

2001:db8:1234:2500:::/56

256

L=2, T=6

2001:db8:1234:2600:::/56

256

L=2, T=7

2001:db8:1234:2700:::/56

256

L=2, T=8

2001:db8:1234:2800:::/56

256

L=2, T=9

2001:db8:1234:2900:::/56

256

L=2, T=10

2001:db8:1234:2a00:::/56

256

L=2, T=11

2001:db8:1234:2b00:::/56

256

L=2, T=12

2001:db8:1234:2c00:::/56

256

L=2, T=13

2001:db8:1234:2d00:::/56

256

L=2, T=14

2001:db8:1234:2e00:::/56

256

L=2, T=15

2001:db8:1234:2f00:::/56

256

L=3, T=0

2001:db8:1234:3000:::/56

256

L=3, T=1

2001:db8:1234:3100:::/56

256

L=3, T=2

2001:db8:1234:3200:::/56

256

L=3, T=3

2001:db8:1234:3300:::/56

256

L=3, T=4

2001:db8:1234:3400:::/56

256

L=3, T=5

2001:db8:1234:3500:::/56

256

L=3, T=6

2001:db8:1234:3600:::/56

256

L=3, T=7

2001:db8:1234:3700:::/56

256

L=3, T=8

2001:db8:1234:3800:::/56

256

L=3, T=9

2001:db8:1234:3900:::/56

256

L=3, T=10

2001:db8:1234:3a00:::/56

256

L=3, T=11

2001:db8:1234:3b00:::/56

256

L=3, T=12

2001:db8:1234:3c00:::/56

256

L=3, T=13

2001:db8:1234:3d00:::/56

256

L=3, T=14

2001:db8:1234:3e00:::/56

256

L=3, T=15

2001:db8:1234:3f00:::/56

256