#Modem vs router wikipedia manual#
#Modem vs router wikipedia code#
#Modem vs router wikipedia plus#

4 Hug the LAN (bring along some friends).

In the AIM section that you will see that the AIM servers are 10.0.20.5 and 10.0.20.6 respectively. When a transmitter or receiver has successfully acquired a DHCP IP address along with Option 125, it will automatically assume that it is under the AIM Managers control and you should see the IP address of the AIM Manager(s) listed on the About page.įor example, the screenshot below has been taken from ALIF2020.

For our setup to take immediate effect a restart the DHCP service was required.

In the data entry section, you need to enter the hex number in the binary section.

On the General tab, scroll down the list and find option 125.

In the Scope Options section, right mouse click and choose Configure Options.

Open the DHCP Scope that you have created to issue IP addresses.

With the Option Class set to 'DHCP Standard Options'.

Right click the IPv4 object in the left hand tree Select 'Set Predefined Options'.

Expand the server tree in question on the left hand side.

Open the DHCP server configuration console (found within administration tools).

Note: This assumes that you have setup the IP address scope to issue a range of IP addresses.

#Modem vs router wikipedia manual#

You will need to check the manual for the specific server. The formatting of the option can vary between DHCP servers. This makes the total of Length A to be 14-bytes which equate to 0e in hex.Ġ000621f 0e 01 0c 0a001405 0a001406 0a001e01 The Sub-option 1 and Length B value are 1-byte each, the Length B total is 12-bytes.

#Modem vs router wikipedia plus#

This is the total of Length B plus the byte count for Sub-option 1 and the Length B value. Since we now have 3x IP addresses and each hex IP address is 4-bytes, the total length is 12-bytes which equates to 0c in hex.Ġ000621f. Add it to the end of the hex code.Ġ000621f. Step 1: Convert IP Address 10.0.30.1 into hex, which is 0a001e01. It will be a Satellite AIM whose IP address is 10.0.30.1 which is on a different subnet.

#Modem vs router wikipedia code#

In the following example an additional IP address will be added to the existing DHCP option 125 hex code shown previously. This makes the total 10-bytes which equates to 0a in hex. Length A includes Sub-option 1 (1-byte) and the Length B value (1-byte) plus the total of Length B (8-bytes). Each hex IP address is 4-bytes, therefore Length B is 8-bytes in total which equates to 08 in hex.

In the example below, there are 2x hex IP addresses. The Length B value is the total byte count of the hex IP Addresses. The Length A and B values will change depending on the number of IP Addresses that are included.Įach hex IP Address is 4-bytes in length, for example: Alternatively, you could use a Calculator with a Hex and Dec function which you may find is built into your computers operating system.Īn IP Address hex code can be calculated by converting each of the four decimal octet’s individually into hex then combining them. There are a number of online websites that help you convert an IP Address into a hex number. The first IP address in the list must always be the Primary AIM Server, followed by the Backup then Satellite AIM’s. The Adder Enterprise and Sub-option 1 elements of the hex code are fixed and do not change, however the IP Address and Length A & B hex values will change depending on your own Infinity installation. The Hex code is broken down to the following elements: The information is provided in a hex code which can be formatted slightly differently depending on the DHCP Server, but will typically look like:. Thereafter, it will contact any of the IP addresses listed in the event of an AIM failure. New/factory reset endpoints only read the first IP address in the Option 125 list until it has communicated with the Primary AIM and security keys have been exchanged.