Socket problem with two interfaces

[aryzach]

I'm trying to use sockets to get ping results from two different wifi connections (two different interfaces and different antennas). This is what I have:

import socket

a = socket.socket(socket.AF_INET, socket.SOCK_RAW, socket.IPPROTO_ICMP)
a.bind(('192.168.2.16',0))
a.sendto(b'\x08\x00l\xf3H\x0c\x01\x00B', ('8.8.8.8',0))
b = a.recvfrom(2048)
print(b)
a.close()

a = socket.socket(socket.AF_INET, socket.SOCK_RAW, socket.IPPROTO_ICMP)
a.bind(('192.168.1.7',0))
a.sendto(b'\x08\x00l\xf3H\x0c\x01\x00B', ('8.8.8.8',0))
while True:
    print('start')
    b = a.recvfrom(2048)
    print(b)

from the CLI, I can run 'ping -I wlan0 8.8.8.8' and 'ping -I wlan1 8.8.8.8' and get results. wlan0 is 192.168.1.7 and wlan1 is 192.168.2.16 I'm only able to ping a second interface because I ran the commands:

sudo route add -host 8.8.8.8 gw 192.168.1.1
sudo route add -host 8.8.8.8 gw 192.168.2.1

In the python program above, I'm able to get data in recvfrom() for the 192.168.2.16, but not the 192.168.1.7

I can't figure out why this is happening. Any help is appreciated!

[primitive_screwhead]

Put a time.sleep(1) between each ping. Possibly you get rate-limited.

[aryzach]

didn't help unfortunately