<html><head><meta http-equiv="Content-Type" content="text/html; charset=utf-8"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; line-break: after-white-space;" class="">Hi Cedric,<div class=""><br class=""><blockquote type="cite" class=""><div class="">Am 01.08.2018 um 15:45 schrieb Cedric R <<a href="mailto:ml@servperso.com" class="">ml@servperso.com</a>>:</div><br class="Apple-interchange-newline"><div class=""><div text="#000000" bgcolor="#FFFFFF" class=""><div class="moz-cite-prefix">Hello,<br class="">I think it's not a bad idea but the real solution remain RPKI.<br class="">If transit operator like HE or L3 start to reject INVALID RPKI and some riskly network start to sign theyr route (and it's pretty simple with RIR tools) we can clear a part of the problem quickly.<br class="">I don't talk about reject unsigned route, but only invalid signed.<br class=""></div></div></div></blockquote><div class=""><br class=""></div>I absolutely agree with you. Personally I believe, for making progress with technology, we will always need some innovators and big players which are able and willing to create a certain amount of pressure on the market. If the big transit providers or networks like Google, Amazon, etc. would agree about a certain date after which they will reject all invalid RPKI, I guess we would see some spike in RPKI adoption VERY quickly. Similiar thing just happening with HTTPS/TLS and their flagging of http:// as insecure in their latest Chrome builds. Same story around three years ago with Google's call for mobile-first and responsiveness. Concerning BGP, unfortunately I do not expect the any of the big ones to take this step anywhere soon, as it would also dramatically impact their own availability and revenue. So what other options do we have then?</div><div class=""><br class=""></div><div class=""><br class=""><blockquote type="cite" class=""><div class=""><div text="#000000" bgcolor="#FFFFFF" class=""><div class="moz-cite-prefix">Also AS blacklisting can be quickly spoofed. <br class="">What append if someone use hijacked ASN behind it's legit ASN to announce hijacked prefix (not every filters drop that). <br class=""></div></div></div></blockquote><div class=""><br class=""></div><div class="">To be honest, that’s an issue I haven't thought about yet but you are absolutely right. </div><div class="">The only feasible solution here would be strict IRRDB filtering on autnum/as-set.</div><div class=""><br class=""></div></div><div class="">Best Regards</div><div class="">Dominic</div><div class=""><br class=""></div><div class=""><br class=""></div><div><blockquote type="cite" class=""><div class=""><div text="#000000" bgcolor="#FFFFFF" class=""><div class="moz-cite-prefix">
Best Regards<br class="">
Cedric Rossius<br class="">
<br class="">
Le 01-08-18 à 11:59, Dominic Schallert a écrit :<br class="">
</div>
<blockquote type="cite" cite="mid:md5:fU2zcPHasjRJ0mOK45HEUQ==" class="">
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Dear colleagues,
<div class=""><br class="">
</div>
<div class="">I’m sure some of you have read about this recent
incident; <a href="https://bgpstream.com/event/144058" class="" moz-do-not-send="true">https://bgpstream.com/event/144058</a> .
Nowadays we’re talking about transport security,
https-per-default, etc. but the most fundamental parts of the
internet such as BGP, are basically broken from a security
perspective. While RPKI/ROA/ROV could fix most of the current
security-related struggles, their deployment currently competes
somewhat with IPv6 - or even worse - and therefore won’t be a
practical solution in the forseeable future. Strict IRRDB and
route object filtering is complicated (or almost impossible) as
well.</div>
<div class=""><br class="">
</div>
<div class="">So I’m wondering, why can't we just have an
automated blacklist like RBL's for mailservers, where all AS'es
detected for hijacking prefixes are automatically blacklisted,
similiar to Team Cymru's fullbogons feed? The list combined with
some scripting could then be used for realtime AS-path filtering
at border routers. Delisting of blacklisted ASNs should happen
only after a pre-defined amount of time (eg. 14 days) or after
paying a fee to a charity/non-profit and providing a statement
on the issue which is publicy released. The idea is to hurt
those who can’t get their stuff - especially prefix filtering -
together.</div>
<div class=""><br class="">
</div>
<div class="">I still remember the days where everyone complained
about RBLs, nowadays almost every mailserver setup relies on
them. Sometimes extreme problems require extrem solutions.</div>
<div class=""><br class="">
</div>
<div class="">
<div class=""><p style="caret-color: rgb(0, 0, 0); font-family: Helvetica; font-size: 12px; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration: none;" class="">Mit besten Grüßen<br class="">
Kind Regards</p><p style="caret-color: rgb(0, 0, 0); font-family: Helvetica; font-size: 12px; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration: none;" class="">Dominic Schallert, BA</p>
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