wlan0/wlan1 routing/performance issue - Raspberry Pi Forums

-

dear raspberry experts,

struggling problem quite on month now. after testing (i possibly think of) hope here has clue wrong in setup.

want build portable hotspot/repeater. purpose bought 2 usb wifi dongles (ralink rt5372) external antennas, plugged in raspberry (pi1 rev. b, tested new pi2). setup looks this:

code: select all

public/hotel wifi (192.168.178.x) <--a--> [pi/wifi1 (192.168.178.70), pi/wifi0(10.0.0.1)] <--b--> clients (10.0.0.x)
set following many of repeater tutorials , tested raspbian wheezy , jessie. using jessie raspbian-ua-netinst, nothing should interrupt.
configured interfaces follows:

code: select all

allow-hotplug wlan0 auto wlan0 iface wlan0 inet static address 10.0.0.1 netmask 255.255.255.0  allow-hotplug wlan1 auto wlan1 iface wlan1 inet dhcp wpa-conf /etc/wpa_supplicant/wpa_supplicant.conf
hostapd configured:

code: select all

# 1. device act ap interface=wlan0 driver=nl80211 # 2. parameters daemon runs ctrl_interface=/var/run/hostapd ctrl_interface_group=0 # 3. wifi configuration ssid=wifipi_nomap channel=2 hw_mode=g ieee80211n=1 # 4. security of wifi connection wpa=2 wpa_passphrase=mysecretpw wpa_key_mgmt=wpa-psk wpa_pairwise=ccmp rsn_pairwise=ccmp # 5. other settings beacon_int=100 auth_algs=3 wmm_enabled=1
routing enabled

code: select all

net.ipv4.ip_forward=1 iptables --table nat --append postrouting --out-interface wlan1 -j masquerade iptables --append forward --in-interface wlan0 -j accept
dnsmasq configured wlan0.

comes mysterious part , problem: every time client downloads (passing connection b, pi, a) connection speed drops kbit/s.
more specific tried iperf on connection (dual test, sending , receiving) have 15 mbit/s, that's fine. additionally tried iperf connection b (dual test, sending , receiving) , 15 mbits/s too. when perform tests simultaneously on , b drops few kbit/s.
seems problem, when both adapters sending/receiving @ same time bad hotspot scenario. top not load, pi in idle.

have idea of whats going wrong setup?

in advance!

a short update: managed 2 edimax usb dongles (realtek rtl8188cus). compiled hostapd use realtek driver , setup worked, speaking of dhcp , routing but:
other adapters cannot have both adapters sending/receiving. speed drops few kbit/s.
out of ideas ...


raspberrypi



Comments

Post a Comment

Popular posts from this blog

invalid use of void expresion in FlexiTimer2 library

-
Image
hello, first post asking in forum patient if dont correctly   well, im trying make robot evades obstacles , uses interrupts in order distances. ive used flexitimer2 run void function each 5ms, problem whe try verify program says me there error in use of flexitimer.    code: [select] flexitimer2::set(1, 1.0/1000, rastreodistanciamin()); i copy code below, please can tell error , how solve it, ive been loking dont know do. thank you code: [select] #include <flexitimer2.h> #include <servo.h> //motor a int ena = 7; int in1=6; int in2 = 5; //motor b int in3=11; int in4=10; int enb=9; servo cabeza; //hc-sr04 device int echo = 13; int triger = 12; //it use hc-sr04 determine , return distance in front of him int calculodistancia(){   volatile int tiempo;   volatile int distancia;   digitalwrite(triger,low); /* por cuestión de estabilización del sensor*/   delaymicroseconds(5);   digitalwrite(triger, high); /* envío del pulso ultrasónico*/   delaymicroseconds(10);   tiem
Read more

error: a function-definition is not allowed here before '{' token

-
i'm new member. me pls code: [select] void manhinh1(){                              tempc = analogread(adc);   tempc = tempc * 0.48828125;                                          lcd.setcursor(0, 0); lcd.print("nhiet: ");                                      lcd.setcursor(7, 0); lcd.print(tempc);   lcd.setcursor(13,0); lcd.print((char)223);    lcd.setcursor(14,0); lcd.print("c");   if(max > min){     if (tempc > max)            {digitalwrite(fan, low);           lcd.setcursor(2, 1); lcd.print("lam mat.....");}     else if (tempc < min)           {digitalwrite(hot, low);           lcd.setcursor(2, 1); lcd.print("dang suoi...");           delay(10000); }     else if (tempc > min && tempc < max)           {digitalwrite(fan, high);            digitalwrite(hot, high);            lcd.setcursor(2, 1); lcd.print("on dinh!!");}              }    else if (max < min){    lcd.setcursor(0, 1);               
Read more

LED Strip Code

-
i downloaded code. here have several single leds flashing music microphone. in project, instead of single rgb leds, have 5 rgb led strips. need change in code? led strip 10m supernight rgb strip cut 5 equal strips. // arduino pin numbers const int do_pin = 2; const int ao_pin = 0; int sound; int led1 = 8; int led2 = 9; int led3 = 10; int led4 = 11; int led5 = 12;   void setup() {   pinmode(do_pin, input);   pinmode(led1, output);   pinmode(led2, output);   pinmode(led3, output);   pinmode(led4, output);   pinmode(led5, output);   serial.begin(9600); }   void loop() {     if (sound > 31) {     digitalwrite(led1, high);   }     if (sound < 31) {     digitalwrite(led1, low);   }     if (sound > 35) {     digitalwrite(led2, high);   }     if (sound < 35) {     digitalwrite(led2, low);   }     if (sound > 40) {     digitalwrite(led3, high);   }     if (sound < 40) {     digitalwrite(led3, low);   }     if (sound > 45) {     digitalwrite(led4, high);   }     if
Read more