<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
</head>
<body text="#3333FF" bgcolor="#FFFFFF">
<p><font face="Arial">Very exciting. So Chris (cgk) and I are going
to have fun trying a few things:</font></p>
<p><font face="Arial">- Current plan (in progress): give SSL over
VDE switch a shot - probably we will end up in a classic
Ethernet loopback situation and move to plan B<br>
- Plan B: bridge + tun/tap + dynamips<br>
- Plan C: Radovan Brezula's GNS3 article
(<a class="moz-txt-link-freetext" href="http://brezular.com/2015/09/29/gre-tunnel-between-cisco-and-linux/">http://brezular.com/2015/09/29/gre-tunnel-between-cisco-and-linux/</a>)<br>
- Plan D: Scotch, double, on the rocks</font></p>
<p><font face="Arial">I will disconnect my MULTINET uplink to HECnet
while all this experimentation goes on (don't want to worry
Johnny too much).</font></p>
<p><font face="Arial">We will report progress here.</font></p>
<p><font face="Arial">Thanks again all!<br>
</font></p>
<br>
<div class="moz-cite-prefix">On 3/14/2018 18:21, Mark Abene wrote:<br>
</div>
<blockquote type="cite"
cite="mid:CAPCE1iYdZXaYw8S8AruSJY8pumuHyiqsQJnoNj+ETzwr7WFncA@mail.gmail.com">
<div dir="ltr">You probably just want linux's built-in bridge
driver, which you manage with brctl.
<div>"br0" is the main interface, which you're free to assign a
DECnet compatible MAC address to. The other ports in the
bridge/switch can be any of real ethernet or tap interfaces.</div>
<div>Use a tap interface to run dynamips on. You can use dynagen
to manage your router instance.</div>
<div>I've literally been doing this for years. My HECnet router
is a dynamips emulated Cisco 720whatever on a tap interface
with a GRE tunnel over the Internet to Dave McGuire's area 61.
I have my other emulated systems on tap interfaces, all
connected to the same virtual bridge/switch on the same linux
machine.</div>
<div><br>
</div>
<div>-Mark</div>
<div><br>
</div>
</div>
<div class="gmail_extra"><br>
<div class="gmail_quote">On Wed, Mar 14, 2018 at 3:12 PM,
Supratim Sanyal <span dir="ltr"><<a
href="mailto:supratim@riseup.net" target="_blank"
moz-do-not-send="true">supratim@riseup.net</a>></span>
wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0
.8ex;border-left:1px #ccc solid;padding-left:1ex">
<div text="#3333FF" bgcolor="#FFFFFF">
<div dir="auto"><span class="">>On 3/14/2018 17:58,
Brian Hechinger wrote:<br>
>He doesn't say he wants to emulate a switch but
rather connect a GRE tunnel to one. He doesn't specify
what he wants on the virtual end but probably a router
will do.<br>
<br>
</span> Yes, sorry, I should have described what I am
trying to achieve. Basically a few virtual nodes talking
DECnet, AppleTalk and NetBIOS/NetBEUI protocols (no IP),
plugged into some virtual switch or router that can
setup a GRE tunnel to a real CISCO switch on the other
end, which also has DECnet and AppleTalk nodes on it.<br>
<br>
I came across this just now based on the pointers
received so far and will research this: <a
class="m_3764196821807744118moz-txt-link-freetext"
href="http://brezular.com/2015/09/29/gre-tunnel-between-cisco-and-linux/"
target="_blank" moz-do-not-send="true">http://brezular.com/2015/09/<wbr>29/gre-tunnel-between-cisco-<wbr>and-linux/</a><br>
<br>
Thanks for the information; keep it coming!<span
class="HOEnZb"><font color="#888888"><br>
<br>
Supratim<br>
</font></span></div>
<div>
<div class="h5">
<div class="gmail_extra"><br>
</div>
<br>
<div class="m_3764196821807744118moz-cite-prefix">On
3/14/2018 17:58, Brian Hechinger wrote:<br>
</div>
<blockquote type="cite">
<div dir="auto">He doesn't say he wants to emulate a
switch but rather connect a GRE tunnel to one. He
doesn't specify what he wants on the virtual end
but probably a router will do.</div>
<div class="gmail_extra"><br>
<div class="gmail_quote">On Mar 14, 2018 17:11,
"Dave McGuire" <<a
href="mailto:mcguire@neurotica.com"
target="_blank" moz-do-not-send="true">mcguire@neurotica.com</a>>
wrote:<br type="attribution">
<blockquote class="gmail_quote" style="margin:0
0 0 .8ex;border-left:1px #ccc
solid;padding-left:1ex"><br>
Ooops, I'm sorry, I missed the word "switch"
in the OP's message.<br>
Thank you for the clarification.<br>
<br>
-Dave<br>
<br>
On 03/14/2018 05:04 PM, Madeline Autumn-Rose
wrote:<br>
> Dynamips doesn’t emulate Cisco switches;
be aware.<br>
><br>
> Routers with switch modules and a basic
switch implementation exists,<br>
> however.<br>
><br>
> You could in theory also tie to VDR<br>
><br>
> Sent from my iPhone<br>
><br>
> On Mar 14, 2018, at 13:25, Brian
Hechinger <<a
href="mailto:wonko@4amlunch.net"
target="_blank" moz-do-not-send="true">wonko@4amlunch.net</a><br>
> <mailto:<a
href="mailto:wonko@4amlunch.net"
target="_blank" moz-do-not-send="true">wonko@4amlunch.net</a>>>
wrote:<br>
><br>
>> I like to use GNS3 to get everything
setup and then switch to dynamips<br>
>> after I know what I'm doing.<br>
>><br>
>> Been to Long since I ran either
though. Need to get a house and get<br>
>> moved so I can get the wicked cool
networking back up.<br>
>><br>
>> On Mar 14, 2018 16:10, "Dave McGuire"
<<a href="mailto:mcguire@neurotica.com"
target="_blank" moz-do-not-send="true">mcguire@neurotica.com</a><br>
>> <mailto:<a
href="mailto:mcguire@neurotica.com"
target="_blank" moz-do-not-send="true">mcguire@neurotica.com</a>><wbr>>
wrote:<br>
>><br>
>> On 03/14/2018 03:05 PM, Supratim
Sanyal wrote:<br>
>> > Any recommendations on a
CISCO switch simulator that runs on Linux<br>
>> > (Ubuntu 17.10) and supports
GRE tunneling to a real CISCO switch<br>
>> over<br>
>> > the internet?<br>
>><br>
>> Dynamips should do it.<br>
>><br>
>> -Dave<br>
>><br>
>> --<br>
>> Dave McGuire, AK4HZ<br>
>> New Kensington, PA<br>
>><br>
<br>
<br>
--<br>
Dave McGuire, AK4HZ<br>
New Kensington, PA<br>
</blockquote>
</div>
</div>
</blockquote>
<br>
</div>
</div>
</div>
</blockquote>
</div>
<br>
</div>
</blockquote>
<br>
</body>
</html>