44net

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3198 discussions

Re: [44net] AMPRNET katency in VOIP connections ?
by Rob Janssen 30 May '16

30 May '16

> The basic idea would be that AMPR to AMPR traffic is a go since it is > tunneled directly. > Public IP to AMPR is a no-go for tunneled networks. > They have a public Gateway IP anyway, so you should use that one for access > from the internet. > Marius, YO2LOJ When you use Echolink from within AMPRnet but want to use a public IP you should be very careful how to implement it. Some people configure an Echolink repeater on an AMPRnet address and then route the traffic to some gateway where this address is translated using NAT. However, this does not work correctly! The Echolink repeater will register itself with the Echolink system server which is on public internet, so the registration address in the Echolink system is the address of your NAT router. But internally, the repeater has a 44.x.x.x address so when someone from a 44.x.x.x address connects the reply will come from the wrong address and the connection does not go through. This manifests itself when some other systems are natively on AMPRnet not using NAT. For example, here in the Netherlands we have several repeaters with a true AMPRnet address that is BGP routed, and we also run several Echolink proxies and relays on AMPRnet addresses. In neighboring Germany, the NAT method is often used, where the repeaters have a 44.x.x.x address but connect to the Echolink server via NAT. As a result, no connections between the repeaters in these two areas are possible, and worse: people using our Echolink proxies and relays cannot connect to German repeaters or users. It can be solved by not using NAT to translate the Echolink traffic to public addresses, but instead run an Echolink proxy on the gateway system which converts the internal AMPRnet address of the Echolink repeater to the public address of the gateway. Unfortunately only a single proxy can be run per public IP address, so a "normal" gateway with a single external address can only host a single repeater. To solve this, a number of proxies can be run e.g. in a datacenter where an IPv4 subnet is available for them (more and more difficult, of course!). This has now been done in Germany. The disadvantage of this solution is that all users that are on AMPRnet still connect to the outside address. On a BGP routed AMPRnet network where no proxies or translations are used, local users can connect the repeater directly. Rob

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AMPRNET katency in VOIP connections ?
by R P 30 May '16

30 May '16

Hi there Is there anyone that use AMPRNET for connecting VOIP gear (such as echolink alients (or even Digital repeaters (DMR D-STAR etc) and can tell how is the fact that every packet goes back and forth to UCSD router effect the connections ? is the latency not making any problem ? any comments from anyone that has tried that is appreciated Thanks Forward Ronen - 4Z4ZQ http://www.ronen.org Ronen Pinchooks (4Z4ZQ) WebSite<http://www.ronen.org/> www.ronen.org ronen.org (Ronen Pinchooks (4Z4ZQ) WebSite) is hosted by domainavenue.com

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KE6I and ZL2AQY
by Brian 30 May '16

30 May '16

Please contact me off list please. Thanks much! -- <rhetorical> Why is it linux users can install and operate *any* version of M$ Windoze but the same can't be said in reverse?</rhetorical> 73 de Brian - N1URO email: (see above) Web: http://www.n1uro.net/ Ampr1: http://n1uro.ampr.org/ Ampr2: http://nos.n1uro.ampr.org Linux Amateur Radio Services axMail-Fax & URONode http://uronode.sourceforge.net http://axmail.sourceforge.net AmprNet coordinator for: Connecticut, Delaware, Maine, Maryland, Massachusetts, New Hampshire, Pennsylvania, Rhode Island, and Vermont.

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Info requested
by Brian 27 May '16

27 May '16

I've gone through several router changes recently all requiring IP changes due to changes of MAC. Can a good handful run: ip route get 44.88.0.1 and show me the commercial IP listed? I've seen several who run rip listener daemons that have failed to update my IP (and I do have remote access to these points). Thanks. -- <rhetorical> Why is it linux users can install and operate *any* version of M$ Windoze but the same can't be said in reverse?</rhetorical> 73 de Brian - N1URO email: (see above) Web: http://www.n1uro.net/ Ampr1: http://n1uro.ampr.org/ Ampr2: http://nos.n1uro.ampr.org Linux Amateur Radio Services axMail-Fax & URONode http://uronode.sourceforge.net http://axmail.sourceforge.net AmprNet coordinator for: Connecticut, Delaware, Maine, Maryland, Massachusetts, New Hampshire, Pennsylvania, Rhode Island, and Vermont.

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Re: [44net] info requested
by Brian 27 May '16

27 May '16

Thanks all who answered. -- <rhetorical> Why is it linux users can install and operate *any* version of M$ Windoze but the same can't be said in reverse?</rhetorical> 73 de Brian - N1URO email: (see above) Web: http://www.n1uro.net/ Ampr1: http://n1uro.ampr.org/ Ampr2: http://nos.n1uro.ampr.org Linux Amateur Radio Services axMail-Fax & URONode http://uronode.sourceforge.net http://axmail.sourceforge.net AmprNet coordinator for: Connecticut, Delaware, Maine, Maryland, Massachusetts, New Hampshire, Pennsylvania, Rhode Island, and Vermont.

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OT Sorry
by Peter Mallett 27 May '16

27 May '16

Hi All, Sorry for the OT noise, someone emailed me some weeks back ( maybe a couple of months ) looking to link to my Node, I wonder if that person is on this list ? If so, could you please contact me again, off list. Thanks ..... Peter ZL2BAU

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Re: [44net] Info requested
by Steve L 27 May '16

27 May '16

Route Finder Tool: http://44.92.21.1/tools/php-ip-route/php-ip-route.php http://44.92.21.1/tools/ 44.88.0.1 via 24.147.182.8 dev tunl0 src 44.92.21.1 cache window 840

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Dayton 2016
by Bryan Fields 19 May '16

19 May '16

I'm presenting at the TAPR forum 9am on Friday about HamWAN and some 44net topics. Love to meet up with any of the other 44net users and chat after, please hit me up of shoot me an SMS at my number below. I'll most likely be on 223.48 simplex as well. 73's W9CR -- Bryan Fields 727-409-1194 - Voice 727-214-2508 - Fax http://bryanfields.net

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CONVERS
by Demetre - SV1UY 10 May '16

10 May '16

Hi, Is anyone still using CONVERS? I can only see autologged-in sysops in all channels and no users. --- 73 Δημήτρης - SV1UY 73 de Demetre - SV1UY IP Coordinator for AMPRNet in Greece e-mail: demetre.sv1uy(a)gmail.com Radio e-mail: sv1uy(a)winlink.org AMPRnet e-mail: sv1uy(a)sv1uy.ampr.org PACKET mail: SV1UY(a)SV1UY.ATH.GRC.EU WEB: http://www.qsl.net/sv1uy

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New set up and everything
by James Sharp 08 May '16

08 May '16

Hi all, I've had a /29 allocation for a while but I'm just now getting set up to try to get it working and I have a questions. My edge router is a Cisco 1811 that I've configured a single IP-IP tunnel on. interface Tunnel44 no ip address ip tcp adjust-mss 1436 tunnel source FastEthernet0 tunnel mode ipip tunnel destination 169.228.66.251 end The only traffic I see coming in on that interface is multicast (which I see as being from RIPng). Are hosts on AMPR net reachable from the public internet via the UCD gateway or is the only traffic I'll ever see from there those RIPng packets? And from what I'm guessing, packets sent to the UCD gateway don't get routed to other netblocks/allocations so I'd need to goahead and build tunnels to everyone else to get a full mesh network. Can someone give me a suggestion on netblocks to build to just to test things? Thanks, James Sharp N5XNS james(a)fivecats.org

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