Hi Matthijs, thank you for the reply. The good news is that the problem seems to be disappeared when I performed the upgrade to last available firmware (even if I didn't find anything related to this problem in the changelog). Unfortunately I have no idea about what the problem was. Regarding the ping to my modem, it wasn't possible with default settings, but I managed to get ping and to be able to connect to the modem from lan (useful to check adsl signal quality) by assigning an IP address to eth0.2 in the subnet of the modem and then configuring the firewall (so I can also connect from hosts different from the Fonera):
ifconfig eth0.2 192.168.1.2 netmask 255.255.255.0 iptables -A forwarding_rule -d 192.168.1.1 -j ACCEPT iptables -t nat -A POSTROUTING -d 192.168.1.1 -j MASQUERADE of course 192.168.1.1 is my modem's ip and I use a different subnet for the lan. Regarding issuing "top" command while fonera is dropping packets, I tried to do that, but I didn't notice any process that is particularly cpu consuming, but in case it will happen again I'll try to do some more testing. Regards. A Il 26/feb/2014 18:11 "Matthijs Kooijman - Fon" <[email protected]> ha scritto: > Hi Angelo, > > > I tried to: > > - Contact my ISP and it says that the adsl line and connection are ok > > - Use a different modem-router instead of the fonera and the TP-link > modem > > (always pppoe): everything goes fine and I always have a mean ping time > to > > google's DNS of 40ms with almost no packet loss > > - Use the TP-LINK modem with a PC: the connection is ok and I can ping > > google's DNS in 40ms with no packet loss > > - Reset the fonera to factory defaults and set just the pppoe connection: > > the problem remains > All that seems to suggest that the Fonera is doing something wrong. > However, this sounds like a tricky problem to debug... > > > - Ping the TP-LINK modem from the fonera: I get a 0.5ms of mean ping time > > with no packet loss > Hmm, how are you pining the TP-LINK? AFAICS there is no IP connection > between the modem and the Fonera, only a PPPOE connection between (I > think) the Fonera and the gateway? > > > The first thing that comes to mind is that somehow there is a > performance problem that causes some process to hog up the CPU, causing > the Fonera to drop packets. You could try running the "top" command > (terminate with ctrl-C) on your Fonera (through SSH) when the connection > is breaking, to see if that shows anything? > > Regards, > > Matthijs Kooijman > > -----BEGIN PGP SIGNATURE----- > Version: GnuPG v1.4.9 (GNU/Linux) > > iEYEARECAAYFAlMOIAkACgkQz0nQ5oovr7x6+wCfU8fKaELQXKGI8OYiHCbsZAZ8 > WhYAn3tjhvCFOJ33wW0ym6loFC2mAmZb > =/WIa > -----END PGP SIGNATURE----- > > _______________________________________________ > Development mailing list > [email protected] > http://fonosfera.org/mailman/listinfo/development > >
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