Format of dictionary files

There are two types of AVPs. The standard RADIUS attributes are called Attribute Value Pairs (AVPs) while those from a vendor are called Vendor-Specific Attributes (VSA). Although there are two types of AVPs we usually do not differentiate between the two and simply call them both AVPs. VSAs use RADIUS attribute type 26 (Vendor-Specific). The value of this AVP is used to wrap the vendor-specific attributes in turn. View the contents of the updated dictionary.mikrotik file to understand the content of a dictionary file. The following discussion will be based on it.

Notes inside the comments

Lines starting with # are treated as comments. Sometimes the comments contain valuable information that should be heeded to in order to avoid a broken system:

# -*- text -*-
#       http://www.mikrotik.com
#
#       http://www.mikrotik.com/documentation//manual_2.9/dictionary
#
#       Do NOT follow their instructions and replace
#       the dictionary in /etc/raddb with the one...