IMPORTANT NOTES - Please Read Carefully Before Upgrading to 4.x Release - If upgrading from firmware version 4.5 or below, Site-to-Site VPN settings need to be reconfigured.
- All Peplink devices should be running the same firmware version to participate in the same Site-to-Site VPN network.
Release 4.8.2, Aug 24, 2009 Changes to Balance Firmware v4.8.2 since v4.8.1 New Features: - Sub-second failover option for Site-to-Site VPN.
Improvements: - Added PPTP logging messages in Event Log.
- Enhanced support for IPSec NAT-T Passthrough.
Bug Fixes: - In rare situation, Site-to-Site VPN cannot be established when higher priority WAN(s) reconnects after it has gone down.
- Health Check may fail when no DNS server setting can be obtained from DHCP server of a WAN connection.
- Notification for firmware upgrade does not function.
Release 4.8.1, Jul 23, 2009 Changes to Balance Firmware v4.8.1 since v4.7.0 New Features: - Bandwidth Allowance Monitor to track bandwidth usage.
- PPTP Server.
- DNS Record Import Wizard to import DNS records via zone transfer.
- UPnP / NAT-PMP support.
- Extended DHCP Option.
- Ability to specify WINS Servers in LAN DHCP Server Settings.
- WAN selection for Least Used / Lowest Latency algorithms in Outbound Policy.
- Auto MTU detection.
- Dedicated status page for Site-to-Site VPN.
- New Client List.
- Ability to define Router Name for the Balance unit for easier tracking in Email Notification, SNMP, NSLookup, etc.
Improvements: - Site-to-Site VPN stability fixes.
- Enhanced Email Notification to support SMTPS and multiple recipients.
- Revamped Event Log, WAN connection status, and Email Notification messages.
- Enhanced SIP ALG to support T.38.
- Enhanced browsers compatibility; added support for Google Chrome 2.0 or above.
Release 4.7.0, Feb 27, 2009 Changes to Balance Firmware v4.7.0 since v4.6.0 New Features: - Added option to choose session failover time for Site-to-Site VPN.
- Added "Advertise Speed" option for each LAN and WAN interface. This has improved port speed negotiation with some networking devices.
- Added e-mail notification for VPN connection and disconnection.
Improvements: - Enhanced Site-to-Site VPN throughput, failover speed, stability and NAT support.
- Improved role changing accuracy in High Availability mode.
- Improved DNS compatibility with Unix clients.
Bug Fixes: - DNS zone transfer issue with some DNS servers.
Release 4.6.0, Dec 02, 2008 Changes to Balance Firmware v4.6.0 since v4.5.0 New Features: - Multi-site VPN Load Balancing support on B380/390/700/710. Note: The VPN function on 4.6.0 or above is NOT backward compatible with versions prior to 4.6.0.
Bug Fixes: - WAN links cannot go up if ping based health check is enabled on all of them and all ping hosts are host names rather than IP addresses.
- Potential WAN port sync problem with static port speed being set.
- Potential problem in sending email notification via some authentication enabled email servers.
- In rare occasions, network time synchronization may trigger device failover and failback momentarily.
Note: Since firmware 4.6.0, if IP Forwarding is enabled on a WAN, health check and DNS resolution packets over the WAN will be originated from the WAN IP address instead of the LAN IP address. Release 4.5.0, Aug 04, 2008 Changes to Balance Firmware v4.5.0 since v4.1.1 New Features: - New Outbound Algorithms: Latency and Least Used.
- Intrusion Detection and DOS Prevention feature in Firewall.
- DSL Optimization.
- Drag-and-drop user interface.
- Service Forwarding.
- Option in 'Reply ICMP Ping Requests' in WAN configuration.
- Bad DNS Server detection.
- Verbose E-mail test output.
Bug Fixes: - High CPU load in High Availability Slave standby mode .
Release 4.1.1, Apr 25, 2008 Changes to Balance Firmware v4.1.1 since v4.1.0 New Features: - VLAN tagging support on WANs.
Improvements: - DDNS: Updated support for changeip.com.
Bug Fixes: - Web admin access problems related to MTU size.
- On WAN settings change, the WAN may unnecessarily reconnect when apply changes.
- Could not save more than one Allowed Source IP subnets in Admin Security page.
Release 4.1.0, Feb 20, 2008 Changes to Balance Firmware v4.1.0 since v4.0.0 New Features: - Site-to-Site VPN support.
- SIP ALG support.
- Wildcard DNS "A" and "CNAME" record support.
- DDNS service provider "tzo.com" support.
- Test Email Notification support.
- FTP Pass-through custom control port support.
Improvements: - Physical Interface speed negotiation.
- Another SMTP authentication method "AUTH LOGIN" in E-mail notification.
Release 4.0.1, Sept 19, 2007 Changes to Balance Firmware v4.0.1 since v4.0.0 Improvements: - Prioritization of SIP call traffic.
- DNS service availability on WAN connections.
- Increased supported number of characters in DNS TXT records to 255.
- Alert message for not enabling health check on any WAN.
Bug Fixes: - DHCP WAN connections might incorrectly reconnect on DHCP IP renewal.
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