Router B propagates the BGP update to routers D and C.

Router B propagates the BGP update to router D.

Router B detects duplicates in its BGP database and discards the update.

Router B propagates the update to routers A, C and D.

The IPv6 link-local address of the router D interface towards router A.

The IPv6 link-local address of the router A interface towards router D.

The IPv6 global address of router A.

The IPv6 global address of router D.

Authentication is performed before establishing the BGP session.

Authentication can only be configuredon the group or neighbor level.

By default, MD5 authentication is disabled.

Peer authentication may be optionally requested in an open message.

Import policies affect the way the local AS receives traffic, while export policies affect the way it sends traffic.

Import policies affect the way the local AS sends traffic, while export policies affect the way it receives traffic.

Both import and export policies affect the way the local AS receives traffic, but not the way it sends traffic.

Both import and export policies affect the way the local AS sends traffic, but not the way it receives traffic.

AS Path of 65200, local-preference of 100.

AS Path of 65200, local-preference of None.

Null AS Path, local-preference of 100.

Null AS Path, local-preference of None.

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"client2" routes will be only tagged with communities 'East'' and "South".

"client2" routes will be tagged with community "East".

"client2" routes will only be tagged with community "South".

"client2" routes will be rejected.