Cabletron Systems SSIM-R8-02 Specifikace stáhnout pdf (Strana 251)

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Enterasys Xpedition User Reference Manual 231

IP Policy Configuration Examples

This section presents some examples of IP policy configurations. The following uses of IP

policies are demonstrated:

• Routing traffic to different ISPs

• Prioritizing service to customers

• Authenticating users through a firewall

• Firewall load balancing

Routing Traffic to Different ISPs

Sites that have multiple Internet service providers can create IP policies that cause

different user groups to use different ISPs. You can also create IP policies to select service

providers based on various traffic types.

In the sample configuration in Chapter 17, IP Policy-Based Forwarding Configuration Guide,

the policy router is configured to divide traffic originating within the corporate network

between different ISPs (100.1.1.1 and 200.1.1.1).

Figure 21. Using an IP Policy to Route Traffic to Two Different ISPs

HTTP traffic originating from network 10.50.0.0 for destination 207.31.0.0/16 is forwarded

to 100.1.1.1. Non-HTTP traffic originating from network 10.50.0.0 for destination

207.31.0.0/16 is forwarded to 200.1.1.1. All other traffic is forwarded to 100.1.1.1.

Group user-a

10.50.*.*

Group user-b

11.50.*.*

ISP1

100.1.1.1

ISP2

200.1.1.1

et.1.1

et.1.2

Policy

Router

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