Re: get ip

I found that remote_number(from auth.c I believe) is populated with the 
original ip of the connecting system.

after that, I used get_ppp_stats to gain the stats needed(bytes_in and 
bytes_out) to log the traffic when the user disconnects.

Thank you,
Greg Borbonus
*Nix Server administrator

On 3/17/2014 4:26 PM, James Cameron wrote:
> On Sun, Mar 16, 2014 at 01:51:57PM -0500, Greg wrote:
>> I was wondering if anyone could tell me how to get the ip address
>> from the client when using ip_up notifier?
>>
>> Also, with the ip_down notifier.
> When given the --logwtmp argument, or the logwtmp option in
> pptpd.conf, pptpd will add four arguments to the pppd command line:
>
>      plugin /usr/lib/pptpd/pptpd-logwtmp.so pptpd-original-ip x.x.x.x
>
> When pppd starts, the pptpd-logwtmp plugin will be activated, which
> adds an options table, and notifiers for ip_up and ip_down.
>
> When pppd processes arguments on the command line, it will fill in the
> pptpd_original_ip variable in the plugin.
>
> When the ip_up notifier is called, the pptpd_original_ip variable will
> have the IP address of the client, or their NAT gateway.
>
> (In the distributed source, ip_up calls logwtmp(3), and optionally
> writes the details to the debug log.)
>
> You can get the IP address from the pptpd_original_ip variable.
>
>> I'm attempting to track the bandwidth usage and connection via the
>> above notifiers.  Any help would be greatly appreciated.
> Conventional UNIX wtmp accounting can be used for connection and time
> spent, but not for data used.
>
> Data used can be deduced by reading the byte counts at ip_down time,
> which are part of the pppd implementation.
>
> The byte counts against the PPP network interface will trend with the
> byte counts of the PPTP stream; but if you need more exact network
> accounting use iptables counters.
>
> Bandwidth can be calculated by averaging data used over connection
> time.
>


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