equal policy routing, no AS required; here's an example of the commands; 8 - I have two providers and two separate ip netblocks .. yours and the other guys.. How do I route machines using your ip's down your interface, and machines using the other guys ip's down his interface? simple need three things a way to determine which machine is talking.. -- access list based on this source address change the default route on the fly --- route maps and apply the above solution to the interfaces. -- interface cmds below ! these match the blocks you got from different providers ! notice the ip NETWORK-ADDRESS and inverted MASK (the any is the destination) access-list 198 permit ip 208.48.145.0 0.0.0.255 any access-list 199 permit ip 207.67.174.128 0.0.0.63 any ! these set the policy and the default route on the fly ! these set only the default address if the block is not directly connected route-map equal-access permit 10 match ip address 198 set ip default next-hop 204.246.203.113 ^^^^^^^^^^^^^^^ far side of 198 block route-map equal-access permit 20 match ip address 199 set ip default next-hop 204.137.203.153 ^^^^^^^^^^^^^^^ far side of 199 block ! these apply the above to the interfaces ! this example applies to two separate interfaces ! individually configured .. if both ip addresses are on the same ! interface using the secondary command.. just apply to that interface interface E0 ip policy route-map equal-access ! int e1 ip policy route-map equal-access On Thu, 25 Jul 2002, [iso-8859-1] "Tho�, Janko" wrote:
Hello,
I have "little" question (but notice that I'm not a guru in BGP-routing and RIPE-problems). We want to connect a customer which don't want to register as a new AS. But he wants a connect to 2 provivers (different AS's). We have tried to get PI-space from RIPE but the automaticly response told us the following: -------- Quote -------- 1. Why is PI space required rather than PA space?
- If PI is requested for multi-homing please explain why the second provider cannot route PA space as a more specific route(with the PA block holder adding a more specific route too).
- The same policies apply to PI space as PA. Administrative ease and/or routing are not reasons for PI. Please read the information about PA/PI from the RIPE Document, IPv4 Address Allocation and Assignment Policies in the RIPE NCC Service Region, Sections 5.1.5 and 5.1.6: -------- Unquote --------
Can anyone tell me what is to do for that the second provider is able to announce the /24-PA from the first provider (to emulate a multihomed connection) or is it only possible to use the second provider for backup with the same space?
wait hopefully for tips or hints
regards, Janko Tho�
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