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On 03/02/2012 18:15, Full Disclosure mailing list wrote:
<blockquote cite="mid:4F2C2427.4030809@nemesys.com" type="cite">
<pre wrap="">On 03/02/2012 08:20, RandallM wrote:
</pre>
<blockquote type="cite">
<pre wrap="">since no one could answer the last one how bout this. In my FW log
Trust (our 10.0.0.0. network) to untrust picked this up:
2012-02-02 10:08:10 7.254.254.254:68 7.254.254.255:67 0.0.0.0:0
0.0.0.0:0 DHCP 0 sec. 0 0 Traffic Denied
My "any" to "any" denied queue.
</pre>
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<pre wrap=""><!---->
I've seen this sort of thing before, from misconfigured VPNs.
Do you have someone using "Tunngle" on your network?
It's a VPN product (as far as I understand it, primarily for gaming),
and it appears to (mis)use the 7.xxx.xxx.xxx IP address space. See this
for a report of similar packet sightings:
<a class="moz-txt-link-freetext" href="http://www.tunngle.net/community/topic/18311-bsod/">http://www.tunngle.net/community/topic/18311-bsod/</a>
My guess is that one of your users has set up this VPN in order to
tunnel through your firewall, but it's not configured correctly and its
DHCP requests are going onto your main network rather than (as intended)
through the tunnel. You might want to look into who is using this...
Granville Moore
Nemesys Computer Consultants
<a class="moz-txt-link-abbreviated" href="http://www.nemesys.com">www.nemesys.com</a>
</pre>
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Sorry - my "From" address was screwed up in my previous reply.<br>
<br>
<pre wrap="">Granville Moore
Nemesys Computer Consultants
<a class="moz-txt-link-abbreviated" href="http://www.nemesys.com">www.nemesys.com</a>
</pre>
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