[Snort-users] snort behind firewall ??
centiped at ...1832...
Fri Apr 27 07:14:26 EDT 2001
Can ya elaborate on this one ? where does the libpcap hooks itself,
Steve Halligan wrote:
> a ppp0 int is at layer2...so ipchains will block it and snort wont see it.
> If you had a ethernet int on the outside, pcap would be able to see the
> packets before ipchains blocked it.
>> Don't know, guys, really.
>> I run snort on the same linux machine I use ipchains.
>> I configured it to serve and protect my ppp0 interface.
>> Until today, it has alerted me of nothing but an ICMP scan, thanks to
>> The moment I remove ipchains, snort usually begins its barking.
>> And of course I heavily tested it with self initiated scannings.
>> My conclusion, and of course your remarks are more than
>> welcomed, is that
>> snort DO NOT see packets blocked by ipchains.
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