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Information on system software Release 5.2.1 patch 1.
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Products: BIANCA/BRICK-XL, BIANCA/BRICK-XL2, BIANCA/BRICK-XMP,
          BIANCA/BRICK-XS2, BIANCA/BRICK-XM2, BINGO!
Date:     10/27/00
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This Readme describes the changes and bugfixes contained in system software
Release 5. 2 .1 patch 1.
For upgrading your system software, please refer to your User's Guide and the
Release Notes for the system software Release 5.2.1.
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This patch contains the following changes and bugfixes:

1. RADIUS
   Products: BIANCA/BRICK-XL, BIANCA/BRICK-XL2, BIANCA/BRICK-XMP,
             BIANCA/BRICK-XM2, BIANCA/BRICK-XS2

  – Rebooting problems due to memory leak
    If incoming PPP calls were authenticated via Radius, a certain amount of
    memory was lost proportional to the number of connections, causing the
    BinTec router to reboot.
    This bug has been fixed.
  
  – FRAMED-IP-ADDRESS
    For Radius accounting the new attribute FRAMED-IP-ADDRESS was not sent
    with system software Release 5.2.1 as described in the Release Notes.
    This bug has been fixed.

2. DNS PROXY
   Products: BIANCA/BRICK-XL, BIANCA/BRICK-XL2, BIANCA/BRICK-XMP,
             BIANCA/BRICK-XM2, BIANCA/BRICK-XS2, BINGO!
   
   – Unwanted connections with PCs running Windows 2000
     PCs in your network running Windows 2000 often send DNS requests of
     the type SRV. Since these requests are answered negatively most of
     the time, the DNS Proxy should have prevented those unwanted connections.
     However, these connections were established and the negative entries
     of the DNS Proxy didn't work.
     This bug has been fixed. Dynamic negative DNS Proxy entries prevent
     unwanted connections now.
     If the negative dynamic cache of the DNS Proxy is enabled (field
     "Negative Cache" in the "IP" -> "DNS" menu), these unwanted
     connections are prevented automatically by dynamic negative entries.
     After the expiration of the TTL (default value is one day; to be
     configured in the "IP" -> "DNS" -> "Advanced Settings" menu), the
     dynamic entries are deleted. After the deletion of a dynamic negative
     entry, a new connection is established with a request of the
     Windows 2000 PC. The request itself generates a negative cache entry
     if the request is answered negatively. Further connections are being
     avoided during the TTL.
     If these one-time connections are also to be prevented, the corresponding
     dynamic entry in the "IP" -> "DNS" -> "Dynamic cache" menu has to
     be set to static.
  
3. FRAME RELAY
   Products: BIANCA/BRICK-XL, BIANCA/BRICK-XL2, BIANCA/BRICK-XMP,
             BIANCA/BRICK-XM2, BIANCA/BRICK-XS2
               
   – Frame Relay works again with system software Release 5.2.1 patch 1
   – Frame Relay Data Units
     In point-to-point connections, Frame Relay data units were incorrectly
     coded and discarded by the receiving side.
     This bug has been fixed.

4. PPP
   Products: BIANCA/BRICK-XL, BIANCA/BRICK-XL2, BIANCA/BRICK-XMP,
             BIANCA/BRICK-XM2, BIANCA/BRICK-XS2
   
   – PPP authentication for leased lines is now available.

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BinTec Communications AG