[c-nsp] single static ip address for customer(s)

[Nick Hilliard]

On 22/06/2012 22:11, Gert Doering wrote:
> Why on earth would anyone want multiple customers in the same broadcast
> domain?  Besides "make life harder"?

Because it allows multicast to work with optimal core->customer efficiency.

Also, dslams can be vaguely smart about broadcast management control,
although they also usually come with annoying restrictions like requiring
explicit support for ipv6, along with explicit support for ra-guard.

The dsl link I'm on at the moment uses bridged ethernet + shared broadcast
domain on the service provider side, with dslam arp spoofing.  The reason
for this was that the SP built the network to run iptv over dsl, but later
found out the hard way that this didn't really work.

Nick