Linksys- A Division of Cisco System, Inc. Release Date : 08/14/2009 Current Firmware : Version 1.52.16.4 Product Part No. : BEFSX41 v1/v2/v2.1 Ver #. Date Description -------------------------------------------------------------------------------- 1.52.16.4 Aug 14,2009 1. Fixed issue with Access restriction for Mac and IP Address. 2. Fixed VPN subnet not accepting 0 in the last octet. 3. Fixed DNS relay port vulnerability. 4. Fixed some RIP issue. 5. Fixed some GUI issue. 6. Fixed UPnP issue 7. Fixed multicast issue. 8. Modifed support for multiple language(English/French). 9. Fixed QoS issues 10. Fixed Xbox issues 11. Fixed various HNAP issues 12. Fixed DynDNS issues 13. Fixed VPN Netbios not working properly. 14. Fixed remote management for some connection type. 15. Fixed DHCP release time. 1.52.15 June 8, 2007 1. Fixed DynDNS status error. 2. Fixed new DST for USA. 3. Updated multicast default from Disabled to Enabled. 4. Fixed UPnP security issue. 5. Updated Peanuthull DDNS feature 6. Fixed prompt support for over 30 characters. 7. Fixed PPPoE login entries could cause router to reboot. 8. Fixed special character support in some prompts. 9. updated TZO to support new feature and User interface. 10. Fixed PPTP server support at warm boot-up. 11. Fixed Keep alive mode in the status for internet connection type. 12. Fixed FTP loopback issue. 13. Fixed Access restriction issue. 1.52.10 May 10, 2006 1. Fixed some online games issue. 2. Fixed for stability 3. Fixed UPnP forwarding issue. 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 can’t 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 shouldn’t 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 hides”View 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 --------------------------------------------------------------------------------