Quick BackStory: I have got a 4G router that I carry for vacation and my family absolutely burnt through the data plan, so I decided to make a small program that tracks the usage and assigns daily limits.
Here is the link to the source code; the router is a ZTE MF910.
P.S: Code runs on the router
Here is the problem: data that I collected seems to match ifconfig TX/RX bytes; however, neither ifconfig nor my program matches the ISP data.
My ISP suggests that I have used 6-7 GB since yesterday, but my router suggests that I have used about 2.5 GB (and so does my program).
I have also ran this program simultaneously on my computer whilst I downloaded some files. Data from my computer matched the expectations entirely whereas data from my router lagged behind quite a bit. (up to %90)
Any ideas as to why this is so inaccurate on my router?
Here is an ifconfig snippet:
bridge0 Link encap:Ethernet HWaddr 74:4A:A4:9D:88:3E
inet addr:192.168.0.1 Bcast:192.168.0.255 Mask:255.255.255.0
inet6 addr: fe80::9c2b:10ff:fef9:1c9f/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:1614602 errors:0 dropped:0 overruns:0 frame:0
TX packets:832006 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:172761946 (164.7 MiB) TX bytes:836806290 (798.0 MiB)
ecm0 Link encap:Ethernet HWaddr 74:4A:A4:9D:88:3E
inet addr:169.254.3.1 Bcast:169.254.3.255 Mask:255.255.255.0
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:0 (0.0 B) TX bytes:0 (0.0 B)
lo Link encap:Local Loopback
inet addr:127.0.0.1 Mask:255.0.0.0
inet6 addr: ::1/128 Scope:Host
UP LOOPBACK RUNNING MTU:16436 Metric:1
RX packets:6 errors:0 dropped:0 overruns:0 frame:0
TX packets:6 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:672 (672.0 B) TX bytes:672 (672.0 B)
rmnet0 Link encap:UNSPEC HWaddr 00-00-00-00-00-00-00-00-00-00-00-00-00-00-00-00
inet addr:178.243.134.235 Mask:255.255.255.0
inet6 addr: fe80::8f76:7195:71fb:31e6/64 Scope:Link
UP RUNNING MTU:1500 Metric:1
RX packets:832231 errors:0 dropped:0 overruns:0 frame:0
TX packets:1594840 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:831615144 (793.0 MiB) TX bytes:184526560 (175.9 MiB)
wlan0 Link encap:Ethernet HWaddr 74:4A:A4:9D:88:3E
inet addr:169.254.1.1 Bcast:169.254.1.255 Mask:255.255.255.0
inet6 addr: fe80::764a:a4ff:fe9d:883e/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:1844673 errors:0 dropped:0 overruns:0 frame:0
TX packets:1173053 errors:0 dropped:2405 overruns:0 carrier:2405
collisions:0 txqueuelen:1000
RX bytes:223033656 (212.7 MiB) TX bytes:864781905 (824.7 MiB)
