Gude Expert Net Control 2302, Manual

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Expert Net Control 2302 © 2021 GUDE Systems GmbH
Specifications
4.4 IPv6
IPv6 Addresses
IPv6 addresses are 128 bit long and thus four times as long as IPv4 addresses. The
first 64 bit form a so-called prefix, the last 64 bit designate a unique interface identifier.
The prefix is composed of a routing prefix and a subnet ID. An IPv6 network interface
can be reached under several IP addresses. Usually this is the case under a global ad-
dress and the link local address.
Address Notation
IPv6 addresses are noted in 8 hexadecimal blocks at 16 bit, while IPv4 normally is
noted in decimal. The seperator is a colon, not a period.
E.g.: 1234:4ef0:0:0:0019:32ff:fe00:0124
Leading zeros may be omitted within a block. The previous example can be rewritten
as:
1234:4ef0:0:0:19:32ff:fe00:124
One may omit one or more successive blocks, if they consist of zeros. This may be
done only once within an IPv6 address!
1234:4ef0::19:32ff:fe00:124
One may use the usual decimal notation of IPv4 for the last 4 bytes:
1234:4ef0::19:32ff:254.0.1.36
4.5 Radius
The passwords for HTTP, telnet, and serial console (depending on the model) can be
stored locally and / or authenticated via RADIUS. The RADIUS configuration supports
a primary server and a backup server. If the primary server does respond, the RADIUS
request is sent to the backup server. If the local password and RADIUS are enabled at
the same time, the system is first checking locally, and then in the event of a failure the
RADIUS servers are contacted.
RADIUS attributes
The following RADIUS attributes are evaluated by the client:
Session-Timeout : This attribute specifies (in seconds) how long an accepted RADIUS
request is valid. After this time has elapsed, the RADIUS server must be prompted
again. If this attribute is not returned, the default timeout entry from the configuration is
used instead.
Filter-Id : If the value "admin" is set for this attribute, then an admin rights are assigned
for the login, otherwise only user access.
Service-Type : This is an alternative to Filter-Id. A service type of "6" or "7" means ad-
min rights for the HTTP login, otherwise only limited user access.