Coyote Point Systems Equalizer Spezifikationen PDF herunterladen (Seite 79)

If the destination IP address is on a local network, source-based routing is not used. The packet is sent to the

destination system via Ethernet.

If the destination IP address is on a local network, source-based routing is not used by default. The packet is sent

to the destination system via Ethernet. However, administrators can configure their routing tables to override the

local entries for particular networks, in which case Equalizer will prefer a source route over a local network route. If

configured in this manner, Equalizer will send the packet to an IP gateway associated with the source route rather

than simply using the ARP address of the destination system to send the packet over Ethernet directly.

3If the destination IP address is on a remote network, the device trying to send a packet performs a most-specific

to least-specific search for the source IP network. If a matching source route is found within the routing table, any

routing table entries that contain that source IP network are used as a destination routing table. For example:

This source-based routing table shows three source routes. If a packet sent to 10.0.0.100 is coming from the

192.168.0.0/24 network, Equalizer will use 10.0.0.1 as the gateway. If it is coming from the 192.168.1.0/24

network, Equalizer will use 10.0.0.2 as the gateway. If it is coming from any other network, Equalizer will use

10.0.0.3 as the gateway.

The IP 0.0.0.0/0 is the least specific that a network entry can be - it matches every IP address. However, because

of the most-specific to least-specific search that Equalizer performs, the 0.0.0.0/0 source route is not used unless

none of the other routes match.

Also note that in this configuration, any packets that have a destination IP address other than a network local to

Equalizer (presumably 192.168.0.0/24, 192.168.1.0/24 and 10.0.0.0/8), a route would not be found and the packet

would be dropped by the system. To prevent this from happening, most configurations include a default route in the

form (0.0.0.0/0, 0.0.0.0/0) || GATEWAY.

Local Networks: Any network that has been added as an Equalizer subnet is considered local to Equalizer. When a

subnet is configured, an Administrator assigns an IP address (potentially more than one) that is Equalizer's IP

presence on this subnet. When an Equalizer is referred to as being in

single-network

mode or

dual-network

mode,

this is the number of local networks.

Remote Networks: Any network that is not a local network. This means that Equalizer needs to perform routing to

communicate with a device on this network.

Destination Networks: A specific remote network that has been configured by the Administrator as

connected

to a

local network of Equalizer. This means that if Equalizer needs to send packets to this network, it should do so from

an IP address on the local network and use the router of the local network. For example:

Equalizer Administration Guide

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Coyote Point Systems Equalizer Spezifikationen Seite 79