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</o:shapelayout></xml><![endif]--></head><body lang=ZH-CN link="#0563C1" vlink="#954F72" style='text-justify-trim:punctuation'><div class=WordSection1><p class=MsoNormal><span lang=EN-US>Dear colleagues,<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p><p class=MsoPlainText><span lang=EN-US>We are now working on source address validation technologies for intra-domain and inter-domain networks, aiming at overcoming the improper block or improper permit problems of existing uRPF technology. We will have a BoF meeting on this topic in IETF 113 (refer to <a href="https://datatracker.ietf.org/doc/bofreq-li-sav-for-intra-and-inter-domain-networks/">https://datatracker.ietf.org/doc/bofreq-li-sav-for-intra-and-inter-domain-networks/</a>). We also created a mailing list in IETF (<a href="mailto:savnet@ietf.org">savnet@ietf.org</a>) for discussion. The subscription portal of the mailing list is <a href="https://www.ietf.org/mailman/listinfo/savnet">https://www.ietf.org/mailman/listinfo/savnet</a>. <o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p><p class=MsoPlainText><span lang=EN-US>If you have interest in this topic, you are welcome to join the mailing list and attend the BoF.<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US>Best,<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US>Dan Li<o:p></o:p></span></p></div></body></html>