I'm running into an interesting problem I thought maybe someone in this community would have run into before.
We're working on a project to redesign and re-IP our entire radio network. Part of the goal is to stop using OpenVPN and IPSec tunnels (long story) and move exclusively to GRE-based tunnels. The plan is to have two Linux VPS hosts running at a provider with our 44Net allocation and an IPv6 allocation advertised and then routed into the radio network over GRE tunnels to 3 different locations that are all backhauled together. One of the primary goals is to do dual-stack throughout the network.
I have one site setup working perfectly - "gre0". It's passing IPv4 and IPv6 traffic over the GRE tunnel. One *key* point to this is that the GRE connection endpoints are iPv6. IPv4 isn't doable for this connection (again, long story but not an option). When setting up the second GRE tunnel "gre2", nothing would work even though the configuration was the same EXCEPT for the fact that the second GRE tunnel was using IPv4 addresses for the GRE tunnel endpoints. Linux keeps spitting out a very odd error when I try to ping across the tunnel I cannot find reasonably documented anywhere:
ip6_tunnel: gre2 xmit: Local address not yet configured!
The key was the "ip6_tunnel" part that took me awhile to figure out. After experimenting, I've found that if I have one GRE tunnel using IPv6 endpoints (ip -6 tunnel add gre0 mod ip6gre) and one using IPv4 endpoints (ip tunnel add gre2 mode gre), only the gre0 tunnel will work and the gre2 tunnel seems to believe it's missing an IPv6 address. If I delete the gre0 tunnel, the gre2 tunnel immediately beings working with both IPv4 and IPv6 traversing the GRE. I cannot find any documentation that describes this behavior or why it would be the case.
I can't switch to IPIP tunnels because I haven't found a way to do a dual-stack tunnel between the endpoints - seems like you can only do one IPIP tunnel between two endpoint IPs regardless of type (ipip, ipip6, ip6ip6, sit)
Anyone have any deep wisdom on GRE tunnels?
Jason
Hello Everyone,
It was very sad news hear to about Brian Kantor passing as he was my
AMPR Coordinator mentor and I imagine *the* mentor for many of us. As
we need to push on with out him, it's unclear on what is the chain of
succession for everything that Brian did. I ask this as I have a new
interested member looking for a BGP allocation and this process was
always processed through Brian to deal with the vetting process,
processing the AMPR Letter of Authority, etc. Can someone from the ARDC,
etc. tell me who to contact if I have questions, next steps once I get
all the required details, etc?
--David
KI6ZHD
Silicon Valley 44.4.x.x/16 AMPR Coordinator
Hello everyone. I've had a two address allocation for a while and I'm
just now getting things setup.
Just wondering if anyone has some info on (our point me to a wiki page)
on getting one of my IP's setup on my home network using TELUS internet
(Canada)? I would like to say I'm not new to networking but for some
reason I'm not at my best.
My plan is to try and setup some rudimentary networking using a simplex
frequency between my remote location and my home base. For now I'm
going to use 9600 baud UHF just to get things working. I know this will
be incredibly slow but I want to try anyway. I may move up to the GHz
range later. Biggest thing is I would like to get internet access using
the 44 net for field day. This will be in hopes of setting up for
emergency situations.
Currently I'm just working on this by myself and would like to get a
proof of concept going before I demonstrate this to anyone else.
Thanks for your help
Stephen Atkins
VE6CIC
On Wed, Nov 27, 2019 at 11:26 AM kd6oat <kd6oat(a)gmail.com> wrote:
> I was saddened by the news of Brian's passing.
> While I did not have the pleasure of ever meeting him in person, I was -
> as with so many on this list - periodically in contact with him by email.
> My first exchanges were during my days in Los Angeles in the early 1990's
> with a 44.16 ip assignment and where he and other provided valuable
> mentoring and helped make the learning curve exciting and enjoyable.
> Over the years - and until very recently - the one-to-one contact has
> remained primarily because of his easy access and willingness to provide
> helpful information at a moments notice.
> He was an anchor for me in this particular area of the amateur radio hobby
> and he will be missed.
> Ken Adlam - KD6OAT
> Utah ampr.org coordinator
>
>>
>>
I have very sad news. My good friend, Brian Kantor, WB6CYT
<https://photos.smugmug.com/photos/i-qRxpLrc/1/X4/i-qRxpLrc-X4.jpg>,
suddenly passed away this week at his home in San Diego, California.
Brian retired only two years ago after 47 years of service on the staff
at the University of California San Diego (UCSD). Way back in the mid
1980s, Brian and I founded AMPRnet, the TCP/IP over amateur radio
network. He continued to manage it until his passing.
Brian recently created and served as chair and CEO of Amateur Radio
Digital Communications (ARDC), a charitable foundation funded by the
sale of unused AMPRnet IPv4 addresses. ARDC promotes STEM education and
amateur radio digital development through scholarships and by funding
the development of open source hardware and software.
Brian will be sorely missed and impossible to replace. Memorial
arrangements will be announced when known.
Phil Karn, KA9Q
Really Sad News
Rest in peace my friend and thank you for all
the help and assistance in supporting amprnet
over the past three decades.
I send my condolences to his family.
Paul g4apl
It is with great sorrow that we learn of Brian's passing. For dozens
of years he has worked in support of Amateur Radio and gone far
beyond what could be expected of an individual to make Amateur Radio
digital operations a success. In the early years he almost
single-handedly insured that the interface with the educational and
commercial worlds were properly managed.
As Phil stated, it will be impossible for us to replace the talent
and knowledge he has provided. This event presents another
opportunity for us to learn how to work together for success in the
future. It is critical that those of us still around, including
those of us from the Southern California Digital Coordination Council
days, endeavor to pass on all that has been learned. There are less
and less of those Don listed still with us.
I for one think that ARDC can play an important role in ensuring our
continued success.
Thank You Brian,
- JimF K6IYK
At 11/22/2019 05:19 PM, Donald Jacob via 44Net wrote:
>Phil, et al,
>Very sad news. I first met Brian (and you) at the SCDCC (Southern
>California Digital Coordinating Council)
>in the early 80's. Had great get togethers at NK6K, Harold's house after
>TRW swapmeets, along with Wally, WA6JPR
>Mike Brock, Skip WB6YMH and many others back in the beginning days of
>digital in amateur radio. As AMPR coordinator for
>Los Angeles I did email Brian periodically, but not nearly enough. We have
>lost a true friend of amateur radio and
>AMPR.
>Please pass along any information if there will be any service.
>
>RIP Brian, thanks for your guidance, knowledge and talent. You will be
>missed.
>
>73
>Don Jacob
>WB5EKU
>
>On Fri, Nov 22, 2019 at 3:37 PM vk2tv via 44Net <44net(a)mailman.ampr.org>
>wrote:
>
> > Thanks Phil,
> >
> > I offer my condolences to all who new Brian.
> >
> > Ray vk2tv
> >
> > On 23/11/19 10:27 am, Phil Karn via 44Net wrote:
> > > I have very sad news. My good friend, Brian Kantor, WB6CYT
> > > <https://photos.smugmug.com/photos/i-qRxpLrc/1/X4/i-qRxpLrc-X4.jpg>,
> > > suddenly passed away this week at his home in San Diego, California.
> > > Brian retired only two years ago after 47 years of service on the staff
> > > at the University of California San Diego (UCSD). Way back in the mid
> > > 1980s, Brian and I founded AMPRnet, the TCP/IP over amateur radio
> > > network. He continued to manage it until his passing.
> > >
> > > Brian recently created and served as chair and CEO of Amateur Radio
> > > Digital Communications (ARDC), a charitable foundation funded by the
> > > sale of unused AMPRnet IPv4 addresses. ARDC promotes STEM education and
> > > amateur radio digital development through scholarships and by funding
> > > the development of open source hardware and software.
> > >
> > > Brian will be sorely missed and impossible to replace. Memorial
> > > arrangements will be announced when known.
> > >
> > > Phil Karn, KA9Q
> > >
> > >
--------------------------------------------------------------------------
James T. Fortney, K6IYK / AAA9R6
E-mail: K6IYK(a)K6IYK.net
or K6IYK(a)K6IYK.radio
or K6IYK(a)220sma.org
or AAA9R6(a)usamars.us
or Jim(a)Fortney.org
Voice: 805.491.3916
Cell: 805.208.3108
Snail: P.O. Box 12589
Prescott,, AZ 86304-2589
Assistant Director, ARRL Southwestern Division
<http://ARRLSWD.org>
IT Services Officer, US Army MARS - Region 9
<<http://usamars.us/>http://USAMARS.us>
President, Valley Emergency Radio Association
<http://VERA.k6iyk.net>
Treasurer & Information Services Officer, 220SMA
<http://220SMA.org>
Member: AMSAT, ARES, Army MARS, ARRL, CACTUS, DCS,
NCS-SHARES, OMARS, SARBA, RACES, TAPR,
YARC, 220SMA
"It is not the class of license the Amateur holds, but the class
of the Amateur that holds the license."
--------------------------------------------------------------------------
Hi OM
I'm hoping to pick someone's brain with regards to the IPIP and RIP config
for AMPRnet on my Mikrotik at home.
I'm using the guide http://www.yo2loj.ro/hamprojects/ampr-gw-README.txt,
which indicates after step seven and a few minutes of waiting I should see
my routing table populated with routes with a 44rip routing mark. Nope.
I've monitored for port 520 on the IPIP as well as Internet facing
interface and see no activity. I also haven't seen a single packet on the
ucsd-gw interface (not sure if I should at this time). So I'm obviously
missing something important and perhaps fundamental in this configuration.
Please send some of your wisdom my way.
Regards
Paul (ZS6IO)
--
Paul Greeff
email(a)paulgreeff.com
Office: +27 86 100 3117
Cell: +27 83 954 3453
Fax:
086 659 0511
Winlink:
zs6io(a)winlink.org
That guide worked for establishing the tunnel, but I don't seem to get
working RIP packets.
The IP address for my local port is 44.x.y.1/32 with a network of 44.x.y.0
(/24). But the IP address on the tunnel interface is 44.x.y.2/32 with a
network of 44.0.0.0 (/8). Somehow this works and the tunnel connects.
Every five minutes I see some packets come in and a packet capture shows
the clear text password in them. But the RIP listener isn't seeing them. I
even set the RIP to listen for any advertisement (not just 44.0.0.0) on any
interface.
tg.
AJ4UQ.
On Fri, Nov 15, 2019 at 2:28 PM Paul Greeff via 44Net <
44net(a)mailman.ampr.org> wrote:
> Hi OM
>
> I'm hoping to pick someone's brain with regards to the IPIP and RIP config
> for AMPRnet on my Mikrotik at home.
>
> I'm using the guide http://www.yo2loj.ro/hamprojects/ampr-gw-README.txt,
> which indicates after step seven and a few minutes of waiting I should see
> my routing table populated with routes with a 44rip routing mark. Nope.
>
> I've monitored for port 520 on the IPIP as well as Internet facing
> interface and see no activity. I also haven't seen a single packet on the
> ucsd-gw interface (not sure if I should at this time). So I'm obviously
> missing something important and perhaps fundamental in this configuration.
>
> Please send some of your wisdom my way.
>
> Regards
> Paul (ZS6IO)
> --
> Paul Greeff
> email(a)paulgreeff.com
> Office: +27 86 100 3117
> Cell: +27 83 954 3453
> Fax:
> 086 659 0511
> Winlink:
> zs6io(a)winlink.org
> _________________________________________
> 44Net mailing list
> 44Net(a)mailman.ampr.org
> https://mailman.ampr.org/mailman/listinfo/44net
>
Good day OM
I am trying to locate the new coordinator for South Africa. With the
unfortunate passing of Dick ZS6RO no one is dishing out network allocations
for South Africans.
Regards
Paul (ZS6IO)
--
Paul Greeff
email(a)paulgreeff.com
Office: +27 86 100 3117
Cell: +27 83 954 3453
Fax:
086 659 0511
Winlink:
zs6io(a)winlink.org
