Linksys- A Division of Cisco System, Inc.

Firmware Date    : January 11, 2006
Current Firmware : Version 1.52.9
Product Part No. : BEFSX41 v1/v2

Ver #.		Date		Description
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1.52.9		Jan 11,2006	1. Fixed Tracerouter in WAN will cause the device
				   to reboot.
				2. Fixed VPN selection of FQDN and manual mode to
				   warn customers that it will not work.
				3. Fixed VPN tunnel name will get cut off if more 
				   than one word is used for the name.
				4. Fixed MTU enable would cause DNS from Internet to
				   LAN to be dropped preventing web surfing.
				5. Fixed DynDNS.org issue specified by DynDNS.org.
				6. Added QoS help file
				7. Added PeanutHull Client for DDNS.
				8. Added MTU in the Status page
				9. Fixed MSN messenger audio not establish correctly with UPnP
				10. Fixed netbios not passed through VPN tunnel.
				11. Fixed VPN connection that will fail when remote gateway
				    is FQDN and its IP changes.
				12. Fixed UPnP function
				13. Fixed website blocking by keyword could cause the router
				    to reboot.
				14. Fixed a few User interace issues.
				15. Modified PPPoE, DHCP, and other connection type to be more
				    stable.
				16. Increased VPN Pre-shared key up to 31 characters.
				17. Fixed proxy filter that would cause the router to reboot when
				    transfering large files through webmail.
				18. Fixed filter function that will cause the router to reboot.
				19. Fixed with long URL causing router to reboot.
				20. Fixed problem for Internet port obtaining IP from RV series LAN
				    Port.
				21. MOdifed DDNS Username to allow longer characters.
				22. Fixed Random reboot when Firewall is disabled and some filter
				    rules are configured.
				23. Fixed URL/Keyword not working properly.
				24. Fixed media player through the internet to reboot the router.
				25. Fixed ISAKMP packet on the LAN side would respond with a fragmented
				    packet. This resulted the router to reboot.
				26. Added Auto-WAN detection used with the Setup wizard.
				27. Modified the filter policy function.
				28. Fixed ARP packets being sent when default gateway is offline.

1.50.18		Apr 30, 04	1. Fixed PPTP connection problem
				2. Added Filter Ident(port 113) option	
				3. Fixed abnormal port scanning results
				4. Fixed DMZ function
				5. Fixed vulnerability that would cause the router
				   to reboot
				6. PPPoE PADI does not send the Service name
	

1.50.9		Mar 17, 04	1. Fixed NetBIOS broadcast not working under IKE tunnel
				2. Fixed PPTP will not pass through WAN to LAN, if PPTP 
                                   server is behind the router
				3. Added Firmware downgrade version check
				4. Fixed VPN can not establish between two sx41,
				   1(fixed IP with remote security gateway set
                                   to DDNS) and 2(pppoe with remote security gateway
                                   set to any)
				5. Added SMTP function for log in e-mail alert
				6. Added new Internet type selection in L2TP
				7. Added Enable/Disable Internal NAT redirection 
                                   to block internel LAN from accessing services
                                   behind the router
				8. Fixed multi-pptp passthrough support
				9. Revised echo timer to detect the Internet
                                   connection status
				10. Fixed IPsec fragmented packet can not 
                                    pass from wan to lan
				11. Modified Viewlog to show proper title
				12. Fixed NTP time
				13. Fixed Specify a MAC Address behind the DMZ port
				14. Fixed Firewall showing incorrect log
				15. Fixed VPN tunnel will not disconnect automatically, 
    				    when there is no traffic between two group
				16. Fixed TZO client not updating when IP changed
				17. Fixed When try to establish a VPN tunnel, 
                                    the router may reboot
				18. Fixed When NTP time is the same as Restrict
                                    Access time, it fails
				19. Fixed Restrict Access Deny whether should 
                                    let Website Blocking un-writable
				20. Added user defined NTP server
				21. Fixed MSN 6.1 to 6.1 will not work using 
                                    netmeeting and voice
				22. Fixed PADT attack will reboot the router
				23. Fixed IPSec fragmentation will cause the
                                    router to reboot
				24. Fixed IPSec passthrough disabled option 
                                    that allowed ESP packets to go through
				25. Modified the product name in the User interface
				26. Added security feature to prevent users entering 
                                    invalid input in URL string instead of UI input
				27. Fixed MAC clone disable function
				28. Added Diagnostic screen to do ping test 
				29. Modified to new web User interface style
				30. Fixed Filter Multicast option to stop 
                                    broadcasting when "leave igmp" packet is sent
				31. Fixed restrict access will not allow or deny 
                                    at a specific time or day
				32. Fixed Enter policy does not save with a name 
                                    with two words, it truncates after the space
				33. Fixed Allow option for restrict user fails
                                    for any settings
				34. Fixed Block services does not block services
				35. Fixed Blocking key word or URL does not work
				36. Fixed problem changing MTU
				37. Fixed adding new Blocked Services
				38. Fixed DMZ specify by MAC behind DMZ port 
                                    cant be saved
				39. Fixed When LAN IP not default, Login User 
                                    Interface by UPnP will fail
				40. Modified user interface to avoid errors entries
				41. Modified VPN Keylife time shouldnt allow
                                    save the value less than 120
				42. Fixed fragmented packets not arriving to 
                                    destination in correct sequence. Affected some
    				    IPsec connections
				43. Fixed When IPSec passthrough disable, client
                                    Nslookup domain will fail
				44. Fixed CGI issue where an out of range value
                                    could not be saved
				45. Fixed a vulnerability with DHCP server function
				46. Fixed VPN screen where "Manual for key
                                    management hidesView Log button
				47. Fixed When MTU option set disable, default MTU 
                                    and server MRU can not work properly
				48. Fixed Restrict Access always have 1 minute 
                                    delay to valid selection
				49. Fixed When restrict time access set midnight 
                                    12:00 can not work correctly
				50. Fixed When DMZ enable, PPTP, PPPoE passthrough 
                                    will fail
				51. Fixed UPnP Forward setting by UPnP IGD, if delete 
                                    all or modify about 8 entry will cause reboot


1.45.3		Sep 26, 03	1. Fixed MSN Messenger not working with UPnP enabled
				2. Fixed PPTP passthrough not connecting in PPPoE connection type
				3. Fixed Web management through "My Network Place" when UPnP is enabled
				4. Fixed UPnP port forwarding through "Internet Gateway" when UPnP is enabled
				5. Fixed Default Gateway by checking valid IP address
				6. Fixed MacClone page for valid MAC address entry
				7. Fixed VPN page IKE phase1 and phase2 KeyLifeTime has no limited range
				8. Fixed Log assign to unknown pc cause device to cold restart
				9. Fixed IKE agressive mode
				10. Fixed Remote Management port range
				11. Fixed DHCP "Starting IP Address" & "Number of DHCP Users" 
				    will auto Apply
				12. Fixed internal loopback issue
				13. Fixed Qcheck UDP throughput not working under a VPN tunnel
				14. Fixed UPnP forwarding internal loopback issue
				15. Fixed Forwarding disabled, but still works
				16. Fixed DynDNS Status error when no WAN connection
				17. Fixed TZO Status error when disabled
				18. Added Multi-PPTP passthrough support
				19. Added New Filter UI style
				20. Modified NTP Server lookup
				21. Fixed Security hole when issuing Web command causes device to hang up


1.44		Nov 22, 02	1. Added Security by requiring password change for
				   Remote Management.
				2. Fixed CGI script locking the router
				3. Fixed reboot problem with Long Passwords.
				4. Fixed Lynx connection to the router without
				   Proper Authentication.
				5. Fixed CGI script detecting ".xml" and would 
				   bypass authentication.  
				6. Fix VPN tunnel disconnecting under FTP 

1.43.4		Oct 3, 02	1. Improved FTP throughput 
				2. Updated Cookie blocking 
				3. Updated NTP not updating under firewall time filter 
				4. Update router mode of Dynamic Route under firewall_enable 
				5. Fixed UPnP reboot problem 
				6. Updated VPN PFS feature using Netscape 4.79 
				7. Fixed DHCP range settings. 
				8. Updated Log tab Apply script 
				9. Improved DMZ port Throughput 
				10. Fixed VPN reboot problem with some VPN router
				11. Updated Firewall report display when Log Disable 
				12. Fixed VPN Advanced setting page can reset when clicking Apply         
				13. Fixed ICMP port unreachable packet under firewall disable settings
				14. Updated PPP request limit and reject limit 


1.43.3		Sep 20, 02	1. Added DDNS services
			 	2. Fixed certain situations where the Router will reboot
				3. Updated VPN connection when DMZ is enabled
				4. Updated FTP client and server connection
				5. Updated PPTP connection when Firewall is enabled
				6. Updated SYN port function when scanned

1.43		May 22, 02	Official Release
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