Periodic stats report may not correct

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On Sat, Feb 24, 2018 at 6:42 PM, Chang John <jonny at livemail.tw> wrote:
> Hi,
>
> I've found a behavior that the reported stats of bytes_out from worker may not match the actual reading from tun interface.
>
> A simple example is mentioned below:
> You can find the TX  reported from occtl is 17672025 (17.7 MB)  which is match the vpns0 interface.
> But the value of tx from the ocserv log is only 1642481 (1.64 MB), it is ten times less than the reading from vpns0.
> Is it normal?

Hi,

 Your example below shows an compressed connection. That means that
the data transferred on the wire are less than the data received by
the tun device. The ten-fold value is interesting, though you may want
to try without compression to figure whether there is an issue or not.


> Terminal log:
> ===============================================================================
> root at 01:~# occtl show user tester4_55 && ifconfig vpns0 && occtl disconnect user tester4_55
>         ID: 20927
>         Username: tester4_55   Groupname: (none)
>         State: connected
>         Device: vpns0   MTU: 1342
>         Remote IP: 11.22.33.44   Location:
>         Local Device IP: 10.140.0.2
>         IPv4: 192.168.1.237   P-t-P IPv4: 192.168.1.1
>         User-Agent: Cisco AnyConnect VPN Agent for Apple iPhone 4.6.00122 / iPhone1
>         RX: 245575 (245.6 KB)   TX: 17672025 (17.7 MB)
>         Average bandwidth RX: 2.2 KB/sec  TX: 159.2 KB/sec
>         DPD: 90   KeepAlive: 32400
>         Hostname: iPhone
>         Connected at: 2018-02-24 23:34 ( 1m:51s)
>         Session: TZT+MM
>         TLS ciphersuite: (TLS1.2)-(ECDHE-RSA-SECP521R1)-(AES-128-GCM)
>         DTLS cipher: (DTLS0.9)-(RSA)-(AES-128-CBC)-(SHA1)
>         CSTP compression: lzs   DTLS compression: lzs
>
>         DNS: 8.8.8.8
>                 8.8.4.4
>         Routes: defaultroute
>         Restricted to routes: False
>
> vpns0     Link encap:UNSPEC  HWaddr 00-00-00-00-00-00-00-00-00-00-00-00-00-00-00-00
>           inet addr:192.168.1.1  P-t-P:192.168.1.237  Mask:255.255.255.255
>           UP POINTOPOINT RUNNING  MTU:1342  Metric:1
>           RX packets:4217 errors:0 dropped:0 overruns:0 frame:0
>           TX packets:13238 errors:0 dropped:0 overruns:0 carrier:0
>           collisions:0 txqueuelen:500
>           RX bytes:245575 (245.5 KB)  TX bytes:17672025 (17.6 MB)
>

regards,
Nikos



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