August 2000
Intermediate to advanced
528 pages
12h 44m
English
Content preview from Internet Routing Architectures, Second Edition
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Policy Routing
This section demonstrates how policy routing can be used to direct the traffic based on the source IP address rather than the destination IP address. Figure 12-12 shows a router, RTA, that is running BGP with two providers, AS1 and AS2. Internal routers such as RTG and RTF are running IGP only (OSPF) and are following a default route toward RTA.
Figure 12-12. Policy Routing Scenario
RTA wants to set policy routing in such a way that traffic coming over the serial line S1 from RTG is directed toward AS2 if the source is network 172.16.10.0/24. Traffic coming from RTG with source 172.16.112.0/24 is to be directed toward AS1; ...
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