Foundry Switch and Router Installation and Configuration Guide
C - 28
December 2000
Layer 3 Filters
Layer 3 filters control a Foundry device’s transmission and receipt of packets based on routing protocol
information in the packets. Foundry devices provide the following types of Layer 3 filters:
•
IP forwarding filters (same as IP access policies, see “IP Access Policies” on page C-9)
•
RIP route filters
•
RIP neighbor filters
•
IPX forwarding filters
•
IPX RIP route and neighbor filters
•
IPX SAP service filters
•
AppleTalk zone filters
•
AppleTalk network filters
•
BGP route address filters
•
BGP route AS-path filters
•
BGP route community filters
•
RIP redistribution filters
•
OSPF redistribution filters
•
BGP redistribution filters
•
Router accelerator (IP and IPX switching) filters (same as router acceleration policies, see “Router
Acceleration Policies” on page C-18)
IP Filters
IP filters control the IP packets that the Foundry device sends and receives and the routes that the device learns
or advertises. IP forwarding filters (IP Access policies) control transmission and receipt of IP packets, while RIP
route and neighbor filters control the routes that the device leans or advertises. Route filters filter on specific
network addresses while neighbor filters filter on the IP addresses of the RIP neighbors.
IP Forwarding Filters
IP forwarding filters determine whether to forward or drop an IP packet. IP forwarding filters on a Foundry switch
or router are called “IP access policies”. See “IP Access Policies” on page C-9.
RIP Route Filters
RIP route filters control the routes that a Foundry device learns and advertises. Figure C.5 shows an example of
a port with RIP route filters. The port has filters for the inbound direction and the outbound direction. Notice that
the same filter can be used for both directions. The inbound filters control the routes that the device learns;
denied routes are not learned by the device. Outbound filters control the routes that the device advertises; denied
routes are not advertised to RIP neighbors.
Summary of Contents for Switch and Router
Page 2: ...December 2000 Copyright 2000 by Foundry Networks Inc ...
Page 26: ...Foundry Switch and Router Installation and Configuration Guide xxvi December 2000 ...
Page 64: ...Foundry Switch and Router Installation and Configuration Guide 2 34 December 2000 ...
Page 162: ...Foundry Switch and Router Installation and Configuration Guide 5 38 December 2000 ...
Page 196: ...Foundry Switch and Router Installation and Configuration Guide 6 34 December 2000 ...
Page 208: ...Foundry Switch and Router Installation and Configuration Guide 7 12 December 2000 ...
Page 236: ...Foundry Switch and Router Installation and Configuration Guide 8 28 December 2000 ...
Page 258: ...Foundry Switch and Router Installation and Configuration Guide 9 22 December 2000 ...
Page 420: ...Foundry Switch and Router Installation and Configuration Guide 13 32 December 2000 ...
Page 442: ...Foundry Switch and Router Installation and Configuration Guide 14 22 December 2000 ...
Page 554: ...Foundry Switch and Router Installation and Configuration Guide 15 112 December 2000 ...
Page 574: ...Foundry Switch and Router Installation and Configuration Guide 16 20 December 2000 ...
Page 626: ...Foundry Switch and Router Installation and Configuration Guide 17 52 December 2000 ...
Page 682: ...Foundry Switch and Router Installation and Configuration Guide 18 56 December 2000 ...
Page 826: ...Foundry Switch and Router Installation and Configuration Guide 20 20 December 2000 ...
Page 994: ...Foundry Switch and Router Installation and Configuration Guide 26 10 December 2000 ...
Page 1004: ...Foundry Switch and Router Installation and Configuration Guide B 6 December 2000 ...
Page 1044: ...Foundry Switch and Router Installation and Configuration Guide C 40 December 2000 ...
Page 1048: ...Foundry Switch and Router Installation and Configuration Guide D 4 December 2000 ...
Page 1070: ...Foundry Switch and Router Installation and Configuration Guide Index 18 December 2000 ...