-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 On 01/10/14 21:55, the wrote: > Hello. This is the the first time I'm dealing with wifi and the > second time with NAT. I have a server (access point) with a ppp0 > interface (internet), eth0, wlan0, tun0 and sit0. A dhcp server is > listening on wlan0 and provides local ip addresses, dns (= my isp > dns) and router (= server wlan0 ip address). Nat is configured on > the server like this: # Generated by iptables-save v1.4.20 on Fri > Jan 10 21:34:26 2014 *raw :PREROUTING ACCEPT [1000941:974106726] > :OUTPUT ACCEPT [775261:165606146] COMMIT # Completed on Fri Jan 10 > 21:34:26 2014 # Generated by iptables-save v1.4.20 on Fri Jan 10 > 21:34:26 2014 *nat :PREROUTING ACCEPT [888:45008] :INPUT ACCEPT > [63:9590] :OUTPUT ACCEPT [442:27137] :POSTROUTING ACCEPT [36:1728] > -A POSTROUTING -o ppp0 -j MASQUERADE COMMIT # Completed on Fri Jan > 10 21:34:26 2014 # Generated by iptables-save v1.4.20 on Fri Jan 10 > 21:34:26 2014 *mangle :PREROUTING ACCEPT [1000941:974106726] :INPUT > ACCEPT [951658:947497602] :FORWARD ACCEPT [39262:26279024] :OUTPUT > ACCEPT [775261:165606146] :POSTROUTING ACCEPT [814621:191890787] > COMMIT # Completed on Fri Jan 10 21:34:26 2014 # Generated by > iptables-save v1.4.20 on Fri Jan 10 21:34:26 2014 *filter :INPUT > ACCEPT [371:35432] :FORWARD ACCEPT [0:0] :OUTPUT ACCEPT > [33994:3725352] -A INPUT -m state --state RELATED,ESTABLISHED -j > ACCEPT -A FORWARD -i wlan0 -o ppp0 -j ACCEPT -A FORWARD -i ppp0 -o > wlan0 -j ACCEPT -A FORWARD -i eth0 -j DROP -A FORWARD -i tun0 -j > DROP COMMIT # Completed on Fri Jan 10 21:34:26 2014 I have a client > that connects to my wifi, obtains an address via dhcp and ... can't > acces almost all of internet sites. I was able to ping any web > service I could think of, but I was able to use only > google/youtube. I can do text/ image serches on google and can open > youtube(but videos aren't loading). On other services wget says > connection established, but it can't retrieve anything. if I ssh to > an external server (not my nat server) I can ls, but if I try to > ls -alh I receive only a half of the files list and the terminal > hangs after that. If I do $python -m http.server on my server I can > do file transfers and open html pages on my client. I have tried > this > https://wiki.archlinux.org/index.php/Software_Access_Point#WLAN_is_very_slow > > Also I have tried to insert LOG target in FORWARD of filter. > It showed that I send way more pakets(>10) to a http server than I > receive(~2-4). The client is fine and behaves normally with wifi, > used it many times. Thanks for your time. BTW I don't think that It's a hardware issue but will provide all hw/kernel info available to me if needed.
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