User guide

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• Built-in Anti-Attack Security Function. Automatic protection against Denial of
Service (DoS) and Distributed Denial of Service (DDoS) attacks. Automatically
block IP addresses that exceed the maximum threshold of concurrent connections for
a specified amount of time. Works in NAT, Transparent, and OOP modes.
• In-Path or Out-of-Path Load Balancing. In normal setup, the WebMux can be
configured In-Path, to act as firewall in addition to the load balancer and health
checker. However, if outbound traffic is much larger than inbound traffic and you
already have a firewall in place, or change of IP address causes problems, consider
using Out-of-Path configuration. Out-of-Path load balancing is also called direct
routing, or one leg operation.
• Transparent Mode. In this mode, the WebMux behaves as an Ethernet bridge
between the Server LAN and the Router (Internet) LAN. The main advantage is that
the network settings in the servers do not have to be changed, no loopback adapters
or IP address changes needed. The servers will be connected behind the WebMux but
will appear to be on the same LAN that the front network the WebMux is connected to.
• Single Network Mode. Allows you to set up load balancing in existing network
without any change to the server configuration. Single network mode changes both
the source and destination IP addresses in the IP packets.
• Layer 7 Load Balancing. WebMux can direct traffic to specific groups of servers
within a farm according to a match pattern in the HTTP MIME header. This allows
you, for example, to group servers that serve only a specific type of content while
serving other types of content on another group of servers. WebMux Layer 7 load
balancing also includes URI load directing with host name MIME header matching
and cookies in order to memorize the user browser session and the server session and
send the same user to the same server. This is important for sites using shopping cart
and dynamically generated pages.
• SNAT and load balancing gateways. WebMux has two SNAT support. One is
SNAT on top the NAT or Transparent mode. Another SNAT is for load balancing
uplink gateways, firewalls, or edge servers.
• Informs you of the status of your network. It provides phone pager and email
notification so that the network administrator can be paged or emailed whenever a
server or WebMux goes down, and when it returns online. This feature could reduce
server room night shift operator costs, or timely repair should the server go down
unexpectedly.
• SNMP Support. Remotely monitor various WebMux parameters in real time via SNMP.
• IPV6 Support. WebMux is ready for the next generation of internet protocol, IPV6.
Version 9 firmware fully supports IPV6 in all modes.
• Multiple Address and Port (MAP) farm to integrate multiple ports and IPs as one
virtual service.
• HTTP Compression. Reduces amount of data to be transferred for HTTP objects. (NOT
supported in Out-of-Path mode, except when used with Layer 7 Load Balancing).
• 802.1q VLAN ID. WebMux can be used in networks that support tagged VLANs.
Switch port must be configured to use tagged VLAN.