CIDR | 2^x Host Bits |
# of Hosts | # of /96s |
# of /64s | # of /56s |
# of /48s |
Netmask (dec) |
Hex - ifconfig(8) | ACL
Netmask (Cisco) |
Binary
Netmask |
---|---|---|---|---|---|---|---|---|---|---|
/0 |
2^128 |
340,282,366,920,938,463,463,374,607,431,768,211,456 |
- |
- |
- |
- |
|
0000:0000:0000:0000:0000:0000:0000:00000 |
|
- |
/8 |
2^120 |
1.3292279957849158729038070602803e+36 |
- |
- |
- |
- |
|
|
|
|
/16 |
2^112 |
5.1922968585348276285304963292201e+33 |
- |
- |
- |
- |
|
|
|
|
/32 |
2^96 |
79228162514264337593543950336 |
18446744073709551616 |
4294967296 |
16777216 |
65536 |
|
|
|
|
/48 (*) |
2^80 |
1208925819614629174706176 |
281474976710656 |
65536 |
256 |
1 |
|
|
|
|
------- |
|
|
|
|
----- |
|
|
|
|
|
/49 |
2^79 |
|
|
32768 |
128 |
- |
|
|
|
|
/50 |
2^78 |
|
|
16383 |
64 |
- |
|
|
|
|
/51 |
2^77 |
|
|
8192 |
32 |
- |
|
|
|
|
/52 |
2^76 |
|
|
4096 |
16 |
- |
|
|
|
|
/53 |
2^75 |
|
|
2048 |
8 |
- |
|
|
|
|
/54 |
2^74 |
|
|
1024 |
4 |
- |
|
|
|
|
/55 |
2^73 |
|
|
512 |
2 |
- |
|
|
|
|
/56 |
2^72 |
4722366482869645213696 |
1099511627776 |
256 |
1 |
- |
|
|
|
|
/57 |
2^71 |
|
|
128 |
- |
- |
|
|
|
|
/58 |
2^70 |
|
|
64 |
- |
- |
|
|
|
|
/59 |
2^69 |
|
|
32 |
- |
- |
|
|
|
|
/60 |
2^68 |
|
|
16 |
- |
- |
|
|
|
|
/61 |
2^67 |
|
|
8 |
- |
- |
|
|
|
|
/62 |
2^66 |
|
|
4 |
- |
- |
|
|
|
|
/63 |
2^65 |
|
|
2 |
- |
- |
|
|
|
|
/64 |
2^64 |
18446744073709551616 |
4294967296 |
1 |
- |
- |
|
ffff:ffff:ffff:ffff:0000:0000:0000:0000 |
|
|
/96 |
2^32 |
4294967296 (4 billion) |
- |
- |
- |
- |
|
|
|
|
------ |
|
|
|
|
|
|
|
|
|
|
/97 |
2^31 |
2147483648 |
|
|
|
|
|
|
|
|
--------- |
||||||||||
/126 |
2^2 |
4 |
|
|
|
|
|
|
|
|
/127 |
2^1 |
2 |
|
|
|
|
|
|
|
|
/128 |
2^0 |
1 |
- |
- |
|
|
- |
ffff:ffff:ffff:ffff:ffff:ffff:ffff:ffff |
|
- |
Address | Description | Available Scopes |
---|---|---|
ff0X::1 | All nodes address, identify the group of all IPv6 nodes | Available in scope 1 (interface-local) and 2 (link-local):
|
ff0X::2 | All routers | Available in scope 1 (interface-local), 2 (link-local) and 5 (site-local):
|
ff02::5 | OSPFIGP | 2 (link-local) |
ff02::6 | OSPFIGP Designated Routers | 2 (link-local) |
ff02::9 | RIP Routers | 2 (link-local) |
ff02::a | EIGRP Routers | 2 (link-local) |
ff02::d | All PIM Routers | 2 (link-local) |
ff02::1a | All RPL Routers | 2 (link-local) |
ff0X::fb | mDNSv6 | Available in all scopes |
ff0X::101 | All Network Time Protocol (NTP) servers | Available in all scopes |
ff02::1:1 | Link Name | 2 (link-local) |
ff02::1:2 | All-dhcp-agents | 2 (link-local) |
ff02::1:3 | Link-local Multicast Name Resolution | 2 (link-local) |
ff05::1:3 | All-dhcp-servers | 5 (site-local) |
ff02::1:ff00:0/104 | 2 (link-local) | |
ff02::2:ff00:0/104 | Node Information Queries | 2 (link-local) |