the route map can specify a global address, a link-local address, or both for the next
hop.
However, a neighbor outbound route map that adds a link-local IPv6 address for
peers where the router should not advertise a link-local next hop is considered an
invalid configuration.
The router accepts both global and link-local BGP IPv6 next-hop addresses received
from its BGP IPv6 peers. As a consequence, when advertising a route to an internal
peer, the router can modify the network address of the next-hop field by removing
the link-local IPv6 address of the next hop.
For static BGP peers, the JUNOSe software does not support the use of link-local
addresses when you configure BGP peers. You cannot configure the local interface
for a neighbor that has been configured with a link-local address. Although you can
configure a neighbor with a link-local address, a BGP session to that peer over TCP
IPv6 does not come up.
For dynamic BGP peers, an E Series router can accept incoming TCP sessions with
the link-local address as the source address. However, the BGP peering does not
come up for such a connection.
Platform Considerations
For information about modules that support BGP on the ERX7xx models, ERX14xx
models, and the Juniper Networks ERX310 Broadband Services Router:
â– See ERX Module Guide, Table 1, Module Combinations for detailed module
specifications.
â– See ERX Module Guide, Appendix A, Module Protocol Support for information about
the modules that support BGP.
For information about modules that support BGP on Juniper Networks E120 and
E320 Broadband Services Routers:
â– See E120 and E320 Module Guide, Table 1, Modules and IOAs for detailed module
specifications.
â– See E120 and E320 Module Guide, Appendix A, IOA Protocol Support for information
about the modules that support BGP.
References
For more information about the BGP protocol, consult the following resources:
â– Address Prefix Based Outbound Route Filter for
BGP-4—draft-chen-bgp-prefix-orf-07.txt (March 2004 expiration)
■BGP Extended Communities Attribute—draft-ietf-idr-bgp-ext-communities-07.txt
(February 2004 expiration)
â– Connecting IPv6 Islands across IPv4 Clouds with
BGP—draft-ietf-ngtrans-bgp-tunnel-04.txt (July 2002 expiration)
14 â– Platform Considerations
JUNOSe 11.1.x BGP and MPLS Configuration Guide
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