Bay Networks 5393 User Manual page 40

Release 5.1 supplement for remote annexes

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Release 5.1 Supplement for Remote Annexes

SLIP

You can conﬁgure the user's IP address (the remote peer's address) using

the Framed-IP-Address (8) attribute if the admin address_origin port

parameter is set to acp or auth_server. If an address is returned by the

RADIUS server, then the Remote Annex uses that address. If, however,

255.255.255.254 is speciﬁed, then the Remote Annex gets the address

using DHCP. If the attribute is not speciﬁed, then the Remote Annex falls

back to the remote_address admin port parameter.

You can conﬁgure the local port IP address using the Annex-Local-IP-

Address (VSA Bay Networks 35) attribute if the admin address_origin

port parameter is set to acp or auth_server. If an address is returned by

the RADIUS server, then the Remote Annex uses that address. If,

however, 255.255.255.254 is speciﬁed, then the Remote Annex gets the

address using DHCP. If the attribute is not speciﬁed, then the Remote

Annex falls back to the local_address admin port parameter.

Challenge-Response Mechanisms

The Remote Annex supports the standard RADIUS Challenge-Response

Mechanisms through the use of the Access-Challenge {4} packet type

and the Reply-Message (18) and State (24) attributes. That is, if the

Remote Annex receives an Access-Challenge {4} response, it prompts

the user for information, with the prompt as the string value of the Reply-

Message (18) attribute. The Remote Annex then sends a new Access-

Request {1} packet, with the user's response encoded in the User-

Password (2) attribute, and with the State (24) attribute returned

unmodiﬁed. This dialog may continue indeﬁnitely until the RADIUS

server determines that the user should be allowed access.

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