The multi

The multi-WAN feature in ClearOS allows you to connect your system to multiple Internet connections. ClearOS multi-WAN not only provides load balancing, but also automatic failover. How It Works

The ClearOS multi-WAN has the following features:

* auto-failover * load balanced * round-robin based on user-defined weights

To give you an example of how multi-WAN works, imagine two 1 Mbit/s DSL lines with two users on the local network. With every new connection to a server on the Internet , the multi-WAN system alternates WAN WA N interfaces. User A could be downloading a large file through WAN #1, while User B is making a voice-over-IP (VoIP) telephone call on WAN #2.

With some applications, the download speed for the multi-WAN system can use the full 2 Mbit/s available. For example, downloading a large fil e from a peer-to-peer network will use the bandwidth from both WAN connections simultaneously. This is possible since the peer-to-peer technology uses many different Internet peers for downloading. At the other e nd of the spectrum, consider the case of downloading a large file from a web site. In this case, only a single WAN connection is used  1 Mbit/s maximum.

Bandwidth aggregation (combining multiple WAN interfaces to look like a single WAN interface) is not possible without help for your ISP since both ends of an Internet connection must be configure d. Configuration Weights

Multi-WAN weights are used to load balance outbound Internet traffic. By default, all WAN interfaces are given a weight of one. This default configuration means the network traffic will be roughly evenly split amongst the different WAN connections.

In one of the typical multi-WAN configurations, a second broadband connection is used for backup. This second connection is often a low-cost and low-bandwidth connection. In this case, you would want to set the weight on your high-bandwidth connection to 3 or 4, while leaving your low-cost/low-end connection with a weight of 1. Source Based Routes

In some situations, you may want a system on your local area network (LAN) to always use a particular WAN interface. A source-based route definition makes this possible. Destination Port Rules

In some situations, you may want to send network traf fic for a specific port out a particular W AN interface. For example, you may want to send all DNS traffic out a particular WAN network. Routing Policies

Some Internet service providers (ISPs) will not allow traffic from source addresses they do not recognize as their own. The following scenarios will give you a good idea of common issues faced in a multi-WAN environment. In the examples, we assume two connections, but the same issues crop up with three or more con nections. DNS Servers

The DNS servers configured on the ClearOS system will be provided by one or both ISPs. I n our example, we are going to assume that ISP #1 provides the DNS servers. If a DNS request from your network goes out the ISP #2 connection, it might get blocked by ISP #1. Result: DNS requests will only succeed on ISP #1.

Solution  Use DNS servers that are accessible from any network. If your ISPs do not provide such DNS servers, then we recommend using OpenDNS.

Note: your DHCP/DSL network configuration settings should have the Automatic DNS Servers checkbox unchecked. DMZ Networks

If you have a range of extra IP addresses provided by ISP #1, you may need to explicitly send traffic from these extra IPs out the ISP #1 connection. ISP #2 may drop the packets.

Solution  Use a Source Based Route for your DMZ network.

CRITERIA FOR DAYGON CONTEST

1.

Vocal Quality

-

30%

a. Flexibility of voice b. Intonation c. Range

2. Harmony

-

30%

-

30%

-

10%

a. Blending b. Balance c. Phrasing

3. Mastery a. Dynamic b. Technique c. Interpretation

4. Projection & Costume a. Production b. Stage Performance

Name of Contestants

Vocal Quality 30%

Harmony 30%

Mastery 30%

Projection & Costume 10%

Total

 ________________________________________ Name of Judge

Rank