nanog mailing list archives
RE: Cisco - ip verify unicast reverse-path
From: Paul Ferguson <ferguson () cisco com>
Date: Mon, 14 Feb 2000 14:00:29 -0500
At 09:58 AM 02/14/2000 -0800, Owen DeLong wrote:
Does ip verify unicast reverse path accept packets for which the inbound interface is not the preferred outbound interface, but is a valid outbound interface?
This feature looks up the source address in FIB, and if the source address is reachable via the source interface, the packet is forwarded. If it is not, it is punted. Yes, it can occasionally pose problems in situations where the FIB associates the forwarding path for a particular prefix to an interface which is not the one on which the packet was received. This feature is not a panacea, just another tool. - paul
Current thread:
- Cisco - ip verify unicast reverse-path trall (Feb 12)
- Re: Cisco - ip verify unicast reverse-path Paul Ferguson (Feb 12)
- Re: Cisco - ip verify unicast reverse-path Craig A. Huegen (Feb 12)
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- Re: Cisco - ip verify unicast reverse-path Paul Ferguson (Feb 14)
- Re: Cisco - ip verify unicast reverse-path Paul Ferguson (Feb 12)
- Re: Cisco - ip verify unicast reverse-path Mark Prior (Feb 13)
- <Possible follow-ups>
- RE: Cisco - ip verify unicast reverse-path Paul Ferguson (Feb 12)
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- RE: Cisco - ip verify unicast reverse-path Paul Ferguson (Feb 13)
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