From: Heikki Hannikainen hessu@hes.iki.fi Date: 10/01/2013 10:01 PM
To: AMPRNet working group 44net@hamradio.ucsd.edu
I think I have found and fixed a problem which caused rip44d multicast reception to mysteriously fail on some systems.
Interesting story. I thought it might be the reason for my battle with the multicast socket on the Raspberry Pi, and I have checked the setting of rp_filter on it, but when I do:
cat /proc/sys/net/ipv4/conf/*/rp_filter
I get:
0 0 0 0 0 0
So it looks like the rp_filter is off for all interfaces on this system. It could be a good idea indeed to turn it on, although I have some DROP rules for obviously spoofed traffic in my firewall, but that is not going to help solving the multicast problem. Apparently there is more than one reason why it could fail... still have not found what is going wrong here.
Rob
Hello Rob et al,
My Raspberry Pi is behing own TL-MR3420 router. When I ran ripd44 for the very first time it didn't worked. Following suggestion by one of U.S. hams, I put Pi into DMZ zone - ripd44d automagically revived!
Raspberry Pi is still in DMZ zone, proctected by very basic iptables employing INPUT filter ONLY, to get rid of offending IP's. Almost on a daily basis I check system log files. Everything looks fine - so far so good.
shows equipment & services available.
Best regards. Tom - sp2lob
-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1
Something is wrong with your website server, the private IP 192.168.0.101 is not NATed:
traceroute to www.sp2lob.ampr.org (87.251.250.110), 64 hops max, 52 byte packets 1 rtr-255-240-28 (44.161.255.241) 0.994 ms 0.695 ms 0.646 ms 2 rtr-255-0-28 (44.161.255.1) 121.163 ms 77.257 ms 141.393 ms 3 mkk1.co-lux-lu.as60391.net (46.29.182.225) 96.017 ms 117.443 ms 39.804 ms 4 v49.e2.mkk176-1.lux.lu.as51405.net (46.29.176.18) 92.284 ms 128.486 ms 97.835 ms 5 80-92-83-153.ip.dclux.com (80.92.83.153) 250.173 ms 82.047 ms 71.249 ms 6 port-c.410.asr1.ams2.gblx.net (64.208.205.149) 100.902 ms 109.630 ms 84.703 ms 7 xe5-0-2-10g.scr4.ams2.gblx.net (67.17.71.217) 93.870 ms 79.112 ms 78.263 ms 8 ae0.ar9.ams2.gblx.net (67.16.146.126) 61.443 ms 91.925 ms 81.831 ms 9 4.68.110.197 (4.68.110.197) 70.401 ms 120.484 ms 78.969 ms 10 4.69.162.186 (4.69.162.186) 100.071 ms 4.69.162.190 (4.69.162.190) 66.215 ms 4.69.162.182 (4.69.162.182) 86.005 ms 11 ae-56-111.ebr1.amsterdam1.level3.net (4.69.153.185) 64.019 ms ae-59-114.ebr1.amsterdam1.level3.net (4.69.153.197) 65.073 ms 145.843 ms 12 ae-45-45.ebr2.dusseldorf1.level3.net (4.69.143.198) 61.536 ms ae-46-46.ebr2.dusseldorf1.level3.net (4.69.143.202) 62.366 ms ae-48-48.ebr2.dusseldorf1.level3.net (4.69.143.210) 88.023 ms 13 ae-25-25.ebr2.berlin1.level3.net (4.69.200.162) 119.580 ms ae-28-28.ebr2.berlin1.level3.net (4.69.200.174) 62.151 ms ae-27-27.ebr2.berlin1.level3.net (4.69.200.170) 61.571 ms 14 ae-5-5.car2.warsaw1.level3.net (4.69.134.17) 61.151 ms 61.282 ms 63.605 ms 15 ae-11-11.car1.warsaw1.level3.net (4.69.134.9) 65.484 ms 66.105 ms 63.528 ms 16 212.73.253.178 (212.73.253.178) 64.134 ms 139.302 ms 95.546 ms 17 wawpla-i3-gi2-1-0.plusnet.pl (212.2.102.169) 146.060 ms 93.537 ms 120.471 ms 18 wawbal-ir1-260.plusnet.pl (212.2.102.233) 106.111 ms 117.758 ms 141.149 ms 19 rt19182pe1-gi4-0-0.plusnet.pl (212.2.100.134) 105.950 ms 140.597 ms 97.984 ms 20 * * * 21 * * * 22 192.168.0.101 (192.168.0.101) 126.668 ms 197.117 ms 176.571 ms
73 de Marc, LX1DUC
On 03/10/2013 07:53, sp2lob@tlen.pl wrote:
(Please trim inclusions from previous messages) _______________________________________________ Hello Rob et al,
My Raspberry Pi is behing own TL-MR3420 router. When I ran ripd44 for the very first time it didn't worked. Following suggestion by one of U.S. hams, I put Pi into DMZ zone - ripd44d automagically revived!
Raspberry Pi is still in DMZ zone, proctected by very basic iptables employing INPUT filter ONLY, to get rid of offending IP's. Almost on a daily basis I check system log files. Everything looks fine - so far so good.
shows equipment & services available.
Best regards. Tom - sp2lob
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Marc,
I appreciate very much your info. Will check what's going on...
Have a nice weekend. Best regards. Tom - sp2lob
-
Marc, LX1DUC -
Rob Janssen -
sp2lob＠tlen.pl