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003c1ba05a
This patch addresses three main issues: a. Passing along the global IPv6 nexthop received from the EBGP peer to IBGP peers but setting the link-local IPv6 nexthop to ourselves when advertising EBGP-learnt routes to IBGP peers (in the absence of outbound route-map or other overrides). The fix is to not send a link-local IPv6 nexthop in this case. b. Passing along the link-local IPv6 nexthop received from one peer to another peer which is (or may be) on a different subnet. This violates the semantics of link-local IPv6 address. The fix is to set the nexthop to ourselves in the situation where the nexthop normally has to be passed but is a link-local IPv6 address. c. Different behavior wrt nexthop advertisement for BGP unnumbered peering if it is setup using link-local IPv6 address versus IPv4 /30 or /31. The fix is to make the behavior consistent as long as the interface config is the same in both cases. Signed-off-by: Vivek Venkatraman <vivek@cumulusnetworks.com> Reviewed-by: Daniel Walton <dwalton@cumulusnetworks.com> Ticket: CM-7846, CM-8043 Reviewed By: CCR-3749 Testing Done: Manual testing, bgpsmoke (on 2.5-br) Note: Imported from 2.5-br patch bgpd-fix-link-local-nexthop-setting.patch |
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| babeld | ||
| bgpd | ||
| cumulus/etc | ||
| debian | ||
| doc | ||
| fpm | ||
| init | ||
| isisd | ||
| lib | ||
| m4 | ||
| ospf6d | ||
| ospfclient | ||
| ospfd | ||
| pkgsrc | ||
| ports | ||
| redhat | ||
| ripd | ||
| ripngd | ||
| solaris | ||
| tests | ||
| tools | ||
| vtysh | ||
| watchquagga | ||
| zebra | ||
| .gitignore | ||
| AUTHORS | ||
| bootstrap.sh | ||
| buildtest.sh | ||
| ChangeLog | ||
| configure.ac | ||
| COPYING | ||
| COPYING.LIB | ||
| HACKING.pending | ||
| HACKING.tex | ||
| INSTALL.quagga.txt | ||
| Makefile.am | ||
| NEWS | ||
| README | ||
| README.NetBSD | ||
| REPORTING-BUGS | ||
| SERVICES | ||
| stamp-h.in | ||
| TODO | ||
| update-autotools | ||
Quagga is free software that manages various IPv4 and IPv6 routing protocols. Currently Quagga supports BGP4, BGP4+, OSPFv2, OSPFv3, RIPv1, RIPv2, and RIPng as well as very early support for IS-IS. See the file INSTALL.quagga.txt for building and installation instructions. See the file REPORTING-BUGS to report bugs. Quagga is free software. See the file COPYING for copying conditions.