There are as many variations of IP usage and ways to express them as there are people that use them. For the Media Servers to properly understand and respect yours, certain syntax rules must be adhered to.
Following these syntax rules, your IP Ranges are Validated to a properly constructed list of IP addresses that the Media Servers can understand. Below are some examples of how to represent IP Addresses and Ranges that your institution uses.
168.156.27.25
. This is a single IP address that demonstrates each of the 4 octets using numeric values, and separated with dots. A similar format of 168.156.027.025 that appears to be the same, is not! IP addresses use numbers, but are not actually numbers, so the leading 0's make it a different (and incorrect) IP address.168.156.27.0
and 168.156.27.255
. This full range of 0-255 can easily be represented using an asterisk as wildcard character.
A single entry of this: 168.156.27.*
is the same as entering 256 consecutive entries like this: 168.156.27.1
168.156.27.2
168.156.27.3
...168.156.27.255
.
A single entry of this: 168.156.27.33-38
is the same as entering 6 consecutive entries like this: 168.156.27.33
168.156.27.34
168.156.27.35
168.156.27.36
168.156.27.37
168.156.27.38
.
168.159.27.1-250
168.159.27.*
might be a better way to enter it because Transforming that range will result in 250 individual IP Address being stored, whereas the wildcard will store only 1 - quite a difference!A single entry of this: 123.55.250-255.*
is the same as entering 6 entries like this: 123.55.250.*
(256 IP addresses represented with a wildcard) 123.55.251.*
(256 IP addresses represented with a wildcard) 123.55.252.*
(256 IP addresses represented with a wildcard)
123.55.253.*
(256 IP addresses represented with a wildcard) 123.55.254.*
(256 IP addresses represented with a wildcard) 123.55.255.*
(256 IP addresses represented with a wildcard).
So, the single entry shown represents 1,536 individual IP Addresses (the six lines shown multiplied by the 256 IP addresses that each includes).
These addresses are reserved for specific Internet purposes and cannot be used in your IP Ranges. Refer to RFC 5735 at The Internet Engineering Task Force for technical details.
CIDR | IP Range | Purpose |
---|---|---|
0.0.0.0/8 |
0.0.0.0 – 0.255.255.255 |
Used for broadcast messages to the current ("this") network as specified by RFC 1700, page 4. |
10.0.0.0/8 |
10.0.0.0 – 10.255.255.255 |
Used for local communications within a private network as specified by RFC 1918. |
100.64.0.0/10 |
100.64.0.0 – 100.127.255.255 |
Used for communications between a Service Provider and its subscribers when using a Carrier-grade NAT, as specified by RFC 6598. |
127.0.0.0/8 |
127.0.0.0 – 127.255.255.255 |
Used for loopback addresses to the local host. |
169.254.0.0/16 |
169.254.0.0 – 169.254.255.255 |
Used for autoconfiguration between two hosts on a single link when no IP address is otherwise specified, such as would have normally been retrieved from a DHCP server. |
172.16.0.0/12 |
172.16.0.0 – 172.31.255.255 |
Used for local communications within a private network as specified by RFC 1918 |
192.0.2.0/24 |
192.0.2.0 – 192.0.2.255 |
Assigned as "TEST-NET" in RFC 5737 for use solely in documentation and example source code and should not be used publicly. |
192.88.99.0/24 |
192.88.99.0 – 192.88.99.255 |
Used by 6to4 anycast relays as specified by RFC 3068. |
192.168.0.0/16 |
192.168.0.0 – 192.168.255.255 |
Used for local communications within a private network as specified by RFC 1918. |
198.18.0.0/15 |
198.18.0.0 – 198.19.255.255 |
Used for testing of inter-network communications between two separate subnets as specified in RFC 2544. |
198.51.100.0/24 |
198.51.100.0 – 198.51.100.255 |
Assigned as "TEST-NET-2" in RFC 5737 for use solely in documentation and example source code and should not be used publicly. |
203.0.113.0/24 |
203.0.113.0 – 203.0.113.255 |
Assigned as "TEST-NET-3" in RFC 5737 for use solely in documentation and example source code and should not be used publicly. |
224.0.0.0/4 |
224.0.0.0 – 239.255.255.255 |
Reserved for multicast assignments as specified in RFC 5771 |
240.0.0.0/4 |
240.0.0.0 – 255.255.255.254 |
Reserved for future use |
255.255.255.255/32 |
255.255.255.255 |
Reserved for the "limited broadcast" destination address |
Created : 2016-11-11 06:18:27, Last Modified : 2016-11-11 06:20:12