[c-nsp] BGP/ASA/Internet Edge Design Question

Donald Darko donald.darko8 at gmail.com
Wed Sep 29 20:24:36 EDT 2010

Correct...The Edge Internet Router will connect to the ISP with a /30...

But what subnet will I utilize between the Edge Internet router and the ASA
outside interface?
Would't it need to be in my provider independent block?..
On Wed, Sep 29, 2010 at 8:09 PM, Bill Blackford <BBlackford at nwresd.k12.or.us
> wrote:

> If I'm understanding you correctly, the ISP in question should give you a
> separate /30 for the interconnect to them. Then you announce your /24 to the
> world and do what you want with the space behind your router.
> -b
> -----Original Message-----
> From: cisco-nsp-bounces at puck.nether.net [mailto:
> cisco-nsp-bounces at puck.nether.net] On Behalf Of Donald Darko
> Sent: Wednesday, September 29, 2010 5:02 PM
> To: cisco-nsp at puck.nether.net
> Subject: [c-nsp] BGP/ASA/Internet Edge Design Question
> Hi All,
> I have a scenario where I would like to perform BGP with my current ISP and
> am in need of a Internet Edge router; as currently my ASA connects directly
> to them.  The IP subnet assignment that I'm using from my provider in my
> will be my provider independent addresses.
> My question is....I'll need to put a new subnet between my ASA and my new
> Internet router...it can't be a private subnet, because the Outside
> interface of the ASA is where my web traffic is coming from.  What are my
> options here?...try to subnet the already in use /24 provider independent
> subnet in my DMZ and use a /29 as a connector subnet between the ASA
> Outside
> interface and the Internet Edge router?
> Thanks
> Donald
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