<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="">GRE tunnels can be built if one end is dynamic as long as your router supports multipoint GRE (mGRE). Check and see if your router supports the command “tunnel mode gre multipoint” and that your tunnel supports commands that start with “ip nhrp “. If so, then we should be able to set something up.<div class=""><br class=""></div><div class="">Mark Berryman<br class=""><div><br class=""><blockquote type="cite" class=""><div class="">On May 10, 2019, at 10:12 AM, Supratim Sanyal <<a href="mailto:supratim@riseup.net" class="">supratim@riseup.net</a>> wrote:</div><br class="Apple-interchange-newline"><div class=""><div 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="">Dynamic IP and GRE is a problem. Even if you have a dynamic DNS service set up (I am using<span class="Apple-converted-space"> </span><a href="http://duckdns.org/" style="color: rgb(149, 79, 114); text-decoration: underline;" class="">duckdns.org</a>'s service happily for a while now if you need one), I don't know if Cisco IOS does a DNS lookup every time it loses a GRE connection to the destination, or even if a destination can be a domain name instead of an IP address. There are fabulous GRE experts in this group who might chime in.</div><div 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=""><br class=""></div><div 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="">If the answer to all of the above is yes, and you are willing to move to area 31, I can give you a GRE tunnel end point on Area 31.</div><div 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=""><br class=""></div><div 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="">The other alternative is a MULTINET connection to area 31 which also I can provide if you wish. MULTINET is proven to be dynamic IP friendly.</div><div 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=""><br class=""></div><div 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="">Best,</div><div 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="">Supratim</div><div 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=""><br class=""></div><div 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=""><br class=""></div><div 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=""><br class=""></div><div 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=""><br class="">On May 10, 2019, at 10:43 AM, Tomas Prybil <<a href="mailto:tomas@prybil.se" style="color: rgb(149, 79, 114); text-decoration: underline;" class="">tomas@prybil.se</a>> wrote:<br class=""><br class=""></div><blockquote type="cite" style="font-family: Helvetica; font-size: 12px; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px; text-decoration: none;" class=""><div class=""><div class="WordSection1" style="page: WordSection1;"><div style="margin: 0cm 0cm 0.0001pt; font-size: 12pt; font-family: Calibri, sans-serif;" class=""><span lang="EN-US" style="font-size: 11pt;" class="">Dear fellow HECNETers<o:p class=""></o:p></span></div><div style="margin: 0cm 0cm 0.0001pt; font-size: 12pt; font-family: Calibri, sans-serif;" class=""><span lang="EN-US" style="font-size: 11pt;" class=""><o:p class=""> </o:p></span></div><div style="margin: 0cm 0cm 0.0001pt; font-size: 12pt; font-family: Calibri, sans-serif;" class=""><span lang="EN-US" style="font-size: 11pt;" class="">I’ve been using Johnnys bridge for a year or so, (thank you Johnny!) and wanted do some additional networking.<o:p class=""></o:p></span></div><div style="margin: 0cm 0cm 0.0001pt; font-size: 12pt; font-family: Calibri, sans-serif;" class=""><span lang="EN-US" style="font-size: 11pt;" class="">Before going full gre peering is there anyone out there that could act as intermediate peer to do some testing while I try not to break anything (!)<o:p class=""></o:p></span></div><div style="margin: 0cm 0cm 0.0001pt; font-size: 12pt; font-family: Calibri, sans-serif;" class=""><span lang="EN-US" style="font-size: 11pt;" class=""><o:p class=""> </o:p></span></div><div style="margin: 0cm 0cm 0.0001pt; font-size: 12pt; font-family: Calibri, sans-serif;" class=""><span lang="EN-US" style="font-size: 11pt;" class="">On my side I have good network connectivity, but unfortunately no static IP :/<o:p class=""></o:p></span></div><div style="margin: 0cm 0cm 0.0001pt; font-size: 12pt; font-family: Calibri, sans-serif;" class=""><span lang="EN-US" style="font-size: 11pt;" class="">The box I’m using is a 2610XM with ios ver 12.4<o:p class=""></o:p></span></div><div style="margin: 0cm 0cm 0.0001pt; font-size: 12pt; font-family: Calibri, sans-serif;" class=""><span lang="EN-US" style="font-size: 11pt;" class=""><o:p class=""> </o:p></span></div><div style="margin: 0cm 0cm 0.0001pt; font-size: 12pt; font-family: Calibri, sans-serif;" class=""><span lang="EN-US" style="font-size: 11pt;" class="">Happy if anyone is willing to share their connectivity<o:p class=""></o:p></span></div><div style="margin: 0cm 0cm 0.0001pt; font-size: 12pt; font-family: Calibri, sans-serif;" class=""><span lang="EN-US" style="font-size: 11pt;" class=""><o:p class=""> </o:p></span></div><div style="margin: 0cm 0cm 0.0001pt; font-size: 12pt; font-family: Calibri, sans-serif;" class=""><span lang="EN-US" style="font-size: 11pt;" class=""><o:p class=""> </o:p></span></div><div style="margin: 0cm 0cm 0.0001pt; font-size: 12pt; font-family: Calibri, sans-serif;" class=""><span lang="EN-US" style="font-size: 11pt;" class="">BR<o:p class=""></o:p></span></div><div style="margin: 0cm 0cm 0.0001pt; font-size: 12pt; font-family: Calibri, sans-serif;" class=""><span lang="EN-US" style="font-size: 11pt;" class="">/t</span></div></div></div></blockquote></div></blockquote></div><br class=""></div></body></html>