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[Snort-users] flexresp?

This is a discussion on [Snort-users] flexresp? within the Snort forums, part of the System Security and Security Related category; This is a multi-part message in MIME format. ------_=_NextPart_001_01C4E3C7.0C21C731 Content-Type: text/plain; charset="US-ASCII&...


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Old 12-17-2004
Sheahan, Paul
 
Posts: n/a
Default [Snort-users] flexresp?

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Hi all,

=20

I just updated to the latest Snort (2.3.0RC2) and compiled it with the
flexresp option. It compiled fine and accepts and understands "resp"
rules, however during testing I have created rules using "resp: rst_all"
and they don't work. I see my test criteria is found in the alert logs
but it does not appear to reset the session. This used to work for me in
the past.=20

=20

Afterward I noticed my sniffing interface did not have an IP assigned,
so I assigned one and did the test again. That still did not help.

=20

I'd like to mess around with sending TCP RSTs when a rule is triggered
or some other way of killing a session when a rule is met. Is Flexresp
the option I should be using or are there better features now? Just
wondering if I should be spending time on flexresp or looking at
something better.=20

=20

I looked at the new "inline" features but not sure if this is an
alternative?

=20

=20

Thanks

=20


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<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'>Hi all,<o:p></o:p></span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'><o:p>&nbsp;</o:p></span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'>I just updated to the latest Snort (2.3.0RC2) and =
compiled
it with the flexresp option. It compiled fine and accepts and =
understands “resp”
rules, however during testing I have created rules using “resp: =
rst_all”
and they don’t work. I see my test criteria is found in the alert =
logs but
it does not appear to reset the session. This used to work for me in the =
past. <o:p></o:p></span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'><o:p>&nbsp;</o:p></span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'>Afterward I noticed my sniffing interface did not =
have an IP
assigned, so I assigned one and did the test again. That still did not =
help.<o:p></o:p></span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'><o:p>&nbsp;</o:p></span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'>I’d like to mess around with sending TCP RSTs =
when a
rule is triggered or some other way of killing a session when a rule is =
met. Is
Flexresp the option I should be using or are there better features now? =
Just
wondering if I should be spending time on flexresp or looking at =
something
better. <o:p></o:p></span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'><o:p>&nbsp;</o:p></span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'>I looked at the new “inline” features but =
not
sure if this is an alternative?<o:p></o:p></span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'><o:p>&nbsp;</o:p></span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'><o:p>&nbsp;</o:p></span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'>Thanks<o:p></o:p></span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'><o:p>&nbsp;</o:p></span></font></p>

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