pppoe - nmap - No buffer space available

[pilax at freesurf.fr]

I tried with a ping in parallel to the nmaped machine and the same error
message happens.

ppp bug ?
pppoe bug ?

> Hi terry,
>
> i can corroborate this problem, with 4.x AND 5.x, without beeing the
> network interface down. We are also using a pppoe link outsides, and i
> can do a ping in parallel, which is working continously, so the tun0
> stays online.
>
> My theorie is, that he keeps the sockets open in state "TIME_WAIT", and
> this takes too long for the fast nmap scans.
>
> cheers Kai
>
>> pilax at freesurf.fr wrote:
>> > sendto in send_tcp_raw: sendto(3, packet, 40, 0, X.X.X.X, 16) => No
>> > buffer space available
>>
>> Your interface is down.  This happens all the time.
>>
>> If you use PPP on a dialup modem with a normal net connection,
>> and unplug the modem while you are doing a ping, you will see
>> the same thing.
>>
>> The easiest fix is "don't send packets out routes that transit
>> interfaces which are not up".
>>
>> -- Terry
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>>



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