44net

44net@mailman.ampr.org

4 participants
3196 discussions

PACCOMM TNC-320 Smoke
by vk1kw 31 Jan '17

31 Jan '17

Hello All, I recently had a power supply problem and it has let the smoke out of my PacComm TNC-320 packet modem. While I have the manual, I do not have a circuit diagram and only have a partial id on one of the cooked ICs U17. The partial number is MC xxxxx06P (I think) and is on the main board across the RS-232 D9 connector circuit. Could you check your circuit diagram, parts list or slide off the cover and have a look and let me know what the U17 IC is please? Many Thanks Rob VK1KW

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BGP announced gateways and Mikrotik RIPv2 AMPR Gateway Setup Script 3.0
by Marius Petrescu 24 Jan '17

24 Jan '17

Hello all, If you may have noticed, there is a recent IPIP tunnel with a 44net gateway (which you may have seen flapping on your Mikrotik routers - 44.130.120.0/24 via 44.130.120.65). This is a experimental setup to allow tunneling via BGP announced 44net gateways, with no real hosts there yet. Ampr-ripd newer than 1.13 will ignore this RIP broadcast (an update will be available soon). Our first step to make it run on Mikrotik routers (this will stop the route flapping): Announcing the Mikrotik RIPv2 AMPR Gateway Setup Script 3.0 (21.Jan.2017) - Added support for tunnels with BGP announced 44net endpoints If you already use v.2.x, only update ampr_gw and from the archive file and add manually the new parameter "AmprDefaultGw" to your config file (see the example file in the archive). "AmprDefaultGw" can be set to your gateway WAN interface name or the correct gateway IP for your router. Download as usual: RSC file: http://www.yo2loj.ro/hamprojects/ampr-gw-3.0.rsc ZIP archive: http://www.yo2loj.ro/hamprojects/ampr-gw-3.0.zip Greetings, Marius, YO2LOJ

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Re: [44net] Forum for Packet, AX.25
by Steve L 24 Jan '17

24 Jan '17

In addition to what has already been posted: the TAPR nos-bbs list http://www.tapr.org/mailman/listinfo/nos-bbs

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Forum for Packet, AX.25
by Adi Linden 23 Jan '17

23 Jan '17

Is there a good forum to discuss packet, AX.25 and such things? After some 20 years of abstinence from packet I am really interested in getting something going. In my area APRS is alive and well, but packet on VHF or UHF is dead and has been dead for a long time. Lots of equipment is still out there, such as KPC-3 and the like, just not being used. Although I am very interested in getting packet going again, I have no idea where to start. Got hardware to spare, but where to start? What’s out there for software (OpenBCM, JNOS, BPQ32, what else?)… I realize that this is probably not the avenue to discuss, but perhaps someone can point me in the right direction of where to start looking, where to ask. Thanks, Adi

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44net IP Block for D-STAR Hosting Use
by Storer, Darren 22 Jan '17

22 Jan '17

Hi Chris, Life at Ofcom has overtaken amateur radio activity almost totally for the last 3 1/2 years but I'm starting to "emerge" again, I'm sure that you understand life's nasty way of getting in the way of hobby time. A number of D-STAR services are still hosted on my servers, including the central dsync reporting tool ( http://dsync.dstar.info/ is the public reporting page but there is an extensive admin portal too) and also some reflectors including REF006 ( http://ref006.dstargateway.org/ ). The servers are due to be re-homed to an A&A data centre, where a few of the staff are amateurs. Some of the D-STAR gateway admins have previously asked about accessing services via ampr.org IP addresses; do you think that this would be an appropriate use of the resource? Tentatively I asked A&A if they could BGP advertise a subnet of ampr.org and they'd be happy to do that, so it's more of a question of whether D-STAR services for hams would be okay to provide via AMPRNet? Are there any rules that would prevent the dsync pages being dual homed via public IP space and ampr.org IP space? Has anyone managed to regularly route digital voice (UDP) over AMPRNet? Sorry for all the questions but I know that you will know the answers... 73 de Darren G7LWT

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Re: [44net] BGPed Gateway
by Rob Janssen 22 Jan '17

22 Jan '17

> With the BGP advertisement my subnet is reachable via internet and can reach anywhere via internet. Other 44 networks can reach my subnet as long as they are also advertised via BGP or have appropriate NAT rules to allow internet access. I can reach any BGP advertised 44 net addresses. However, I should not be able to reach any non-BGP advertised 44 net addresses unless there is a gateway (at USCD?) that allows for access to IPIP only 44 networks from 44 networks. > I guess I don’t know the network topology of the 44 net or the functions that are provided at the UCSD gateway. > I assumed that in order to reach IPIP only networks I would have to also establish IPIP tunnelling from each 44 host or gateway using subnets of my BGP advertised subnet. When the system that handles the traffic that comes in on your BGP advertised route also has a public IP address and is made member of the IPIP mesh for the same subnet it advertises on BGP, you can talk to everyone that is on the IPIP mesh. They will send traffic for you via the IPIP tunnel that they establish because you are in the list maintained via portal.ampr.org and transmitted using RIP from the gateway at UCSD. You then only use IPIP for traffic between hosts on the IPIP mesh, not for the remainder of traffic to and from internet. Rob

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BGPed Gateway
by Adi Linden 22 Jan '17

22 Jan '17

Hi, I received a 44 net allocation and am successfully advertising it to the internet via my ISP. I have been reading on the AMPRNet Wiki about IPIP tunnelling and Startampr. Are there best practices or anything else I need to be aware of before venturing into building the gateway? On a related note, I have been using OpenVPN to provide publicly routable /32 IP addresses to individual Windows PC. I don’t see support for IPIP on Windows, are there any other tunnelling methods worth looking at, for Windows7 specifically, or is OpenVPN my best bet? Thanks, Adi VA3ADI

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Coordinator response?
by M6XCV (Mike) 20 Jan '17

20 Jan '17

Hi, I wouldn't normally post here about this, but I see a couple of others seem to have gotten a response from doing so. I am new to amatuer radio and while I was getting my license someone told me about APRMnet, so I decided to join. I put in a network request back in november and got a response from the coordinator G1FEF asking for clarification on my request. I responded via the portal, however that has been the last I have heard. I sent a follow-up email directly at the beginning of January, however I haven't had any further response. What should I do next? Thanks, - Mike, M6XCV

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Tunnel on Cisco Router
by Bill Atkinson 18 Jan '17

18 Jan '17

Greetings! I have a /22 block of AMPRNet space. I've configured it for tunnel access, and defined the gateway in my portal. Following the instructions on the wiki, here is my router config: interface GigabitEthernet0/0 ip address 44.48.8.1 255.255.252.0 secondary ip address 96.82.54.108 255.255.255.240 duplex auto speed auto media-type rj45 end interface Tunnel0 no ip address tunnel source 96.82.54.108 tunnel mode ipip tunnel destination 169.228.66.251 end results of 'sh int tunnel0' amprnet-router#sh int tunnel0 Tunnel0 is up, line protocol is up Hardware is Tunnel MTU 17920 bytes, BW 100 Kbit/sec, DLY 50000 usec, reliability 255/255, txload 1/255, rxload 1/255 Encapsulation TUNNEL, loopback not set Keepalive not set Tunnel source 96.82.54.108, destination 169.228.66.251 Tunnel protocol/transport IP/IP Tunnel TTL 255, Fast tunneling enabled Tunnel transport MTU 1480 bytes Tunnel transmit bandwidth 8000 (kbps) Tunnel receive bandwidth 8000 (kbps) Last input 00:02:16, output never, output hang never Last clearing of "show interface" counters never Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0 Queueing strategy: fifo Output queue: 0/0 (size/max) 5 minute input rate 0 bits/sec, 0 packets/sec 5 minute output rate 0 bits/sec, 0 packets/sec 7024 packets input, 3500920 bytes, 0 no buffer Received 0 broadcasts (0 IP multicasts) 0 runts, 0 giants, 0 throttles 0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored, 0 abort 0 packets output, 0 bytes, 0 underruns 0 output errors, 0 collisions, 0 interface resets 0 unknown protocol drops 0 output buffer failures, 0 output buffers swapped out At this point, I believe I need to get RIP running with the right options. However, this is where the wiki falls short. The only rip configs examples are for the linux daemons. Here is the output of 'sh ip prot' amprnet-router#sh ip protocols *** IP Routing is NSF aware *** Routing Protocol is "rip" Outgoing update filter list for all interfaces is not set Incoming update filter list for all interfaces is not set Sending updates every 30 seconds, next due in 13 seconds Invalid after 180 seconds, hold down 180, flushed after 240 Redistributing: rip Neighbor(s): 169.228.66.251 Default version control: send version 2, receive version 2 Automatic network summarization is in effect Maximum path: 4 Routing for Networks: 44.0.0.0 Passive Interface(s): GigabitEthernet0/0 GigabitEthernet0/1 VoIP-Null0 Routing Information Sources: Gateway Distance Last Update Distance: (default is 120) As is standard practice, I've put all interfaces in passive-default, and then explicitly defined tunnel0 as non-passive. I have not been able to establish any sort of RIP adjacency: amprnet-router#sh ip route rip Codes: L - local, C - connected, S - static, R - RIP, M - mobile, B - BGP D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2 E1 - OSPF external type 1, E2 - OSPF external type 2 i - IS-IS, su - IS-IS summary, L1 - IS-IS level-1, L2 - IS-IS level-2 ia - IS-IS inter area, * - candidate default, U - per-user static route o - ODR, P - periodic downloaded static route, H - NHRP, l - LISP + - replicated route, % - next hop override Gateway of last resort is not set amprnet-router#sh ip rip database 44.0.0.0/8 auto-summary 44.48.8.0/22 directly connected, GigabitEthernet0/0 Thanks in advance to anyone who can offer any guidance. --- 73, Bill Atkinson, NF9K ARRL Technical Specialist ARRL VE/OO Laurel VE PODXS 070 Club #1595 30MDG #6014 www.nf9k.net www.crossroadsdmr.org

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Re: [44net] BGPed Gateway
by Rob Janssen 18 Jan '17

18 Jan '17

> I received a 44 net allocation and am successfully advertising it to the internet via my ISP. > I have been reading on the AMPRNet Wiki about IPIP tunnelling and Startampr. Are there best practices or anything else I need to be aware of before venturing into building the gateway? It is advisable to make your system an IPIP tunnel gateway for the same subnet as you advertise via BGP. Make sure you use a non-44 public IP for the tunnel. > On a related note, I have been using OpenVPN to provide publicly routable /32 IP addresses to individual Windows PC. I don’t see support for IPIP on Windows, are there any other tunnelling methods worth looking at, for Windows7 specifically, or is OpenVPN my best bet? We offer OpenVPN but beware: it allows an easy entry into the AMPRnet that has nothing to do with amateur radio anymore. You just become a VPN provider like there already are so many on internet. To do something amateur-radio related with AMPRnet you really should offer radio access and encourage the users to use it, and OpenVPN works counter-productive in that regard. Rob

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