[c-nsp] MPLS VPN Question about PE-CE - Private or Public IP?

[Christian Koch]

a 64bit route distinguisher and the 32bit ip address are used to
create vpnv4 address, which specifically solves the overlap problem



On Tue, Aug 19, 2008 at 9:19 PM, Andy Saykao
<andy.saykao at staff.netspace.net.au> wrote:
> Just wondering from those in the know, whether it's best practice to
> implement public or private IP's for the PE-to-CE link. What's everyone
> using and why?
>
> For our MPLS network, I've been asked by my Manager to use private IP's
> for the PE-CE link in order to give the customer the appearance that
> they are on a secure PRIVATE network due to private IP's being used.
> Although I tend to be more fond of using public IP's because it's a
> unique address space so you don't have to worry about overlapping IP
> addresses on the customer's end and secondly there's no configuration
> from the Service Provider's end should you need to remove the connection
> from the VRF to conduct further testing from the Internet becuse the
> connection is already using public IP's  (eg: for cases where the
> customer is complaining of slow speeds, packet loss, drop outs, etc and
> you want to test the individual connection and bypass their VPN).
>
> Thanks.
>
> Andy
>
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