I've seen 2 of those in normal use.
For example, the Draytek Vigor 120 is a device that bridges PPPoA to
PPPoE, so that you can terminate the PPP connection on a PC or router
(or linux-PC-router, whatever). Apparently they sell quite well. We have
customers using them. And PPPoE -> PPPoE bridging is something that any
CPE can do (just put it in bridge mode).
And picking the WAN IP address for outgoing connections originating from
the CPE also isn't all that unexpected.
So, not all that unusual, and certainly not impossible.
BTW, "we" is XS4ALL Internet.
Mike.
On 26-03-11 12:08 AM, Frank Bulk wrote:
Based on what I've seen of residential IPv6 CE routers, that would be a very
unusual configuration, in fact, perhaps impossible.
Frank
-----Original Message-----
From: Miquel van Smoorenburg [mailto:[email protected]]
Sent: Friday, March 25, 2011 4:43 PM
To: [email protected]
Cc: [email protected]
Subject: Re: [c-nsp] DHCP_PD usage for PPPoE Access
There's always a customer that bridges the PPP connection to a PC on
which the connection is terminated.
And though we don't want it, modems will turn up that do IPv6 NAT.
And what address do you think will be used as source address for
connections originating from the CPE ? Like SIP ?
In all those cases, the WAN address is used for outgoing connections.
Mike.
On 25-03-11 9:16 PM, Frank Bulk wrote:
Why would the IPv6 address on the WAN interface ever be seen? Clients
attached to the CE router would be using the delegated prefix...
Frank
-----Original Message-----
From: [email protected]
[mailto:[email protected]] On Behalf Of Miquel van
Smoorenburg
Sent: Friday, March 25, 2011 7:51 AM
To: [email protected]
Subject: Re: [c-nsp] DHCP_PD usage for PPPoE Access
<snip>
The advantage is that you *know* what address or range the CPE has. If
it also uses an address gotten via SLAAC on the WAN interface, how are
you going to find the customer when the government asks "who is (or was)
behind this IPv6 address" and it's from your shared pool ?
Mike.
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