You need a high metric null route for that /32.<br><br>Liam Farr &lt;liamfarr@me.com&gt; wrote:<br><br><div>Hi,</div><div><br></div><div>I've run into a bit of a dumb problem, hopefully someone here can point me in the right direction.&nbsp;</div><div><br></div><div>I receive a route to a /28 from a member of my BGP confederation, (the /28 is on a directly connected interface of this router) via BGP to one of my edge routers, and I wish to advertise a specific /32 from this /28 to an external BGP peer&nbsp;<span style="line-height: 1.5;">(upstream provider)</span><span style="line-height: 1.5;">&nbsp;from this edge router.</span></div><div><br></div><div>I can use route-maps and prefix-lists, to define a BGP export policy to only export the /32 to the external neighbor without issue. Where I get stuck is getting the /32 into my route table, essentially I need to de-aggregate the /28 down to a /32?</div><div><br></div><div>Is there an accepted "best practice" way of doing this?</div><div><br></div><div>Apologies if this is a stupid question, I've never run into this issue before, and Google isn't giving me much help.</div><div><br></div><div><br></div><div><br></div><div>Cheers</div><div><br></div><div>Liam Farr</div>