[Snort-devel] Fwd: Snort blocking connection but not logging the drop

Cody Brugh cbrugh at ...2499...
Mon May 12 10:29:13 EDT 2014


Can you confirm you received my PCAP file?  I would really like to get this
issue resolved so I can work with their API.

Let me know the status please.


On Fri, May 9, 2014 at 9:02 AM, Cody Brugh <cbrugh at ...2499...> wrote:

> Attached is the pcap of the stamps.com packet capture... can someone
> check and see what I should do?
>
> Thanks,
> Cody
>
>
> On Fri, May 9, 2014 at 8:19 AM, Russ Combs (rucombs) <rucombs at ...3461...>wrote:
>
>>
>>  ------------------------------
>> *From:* Joel Esler (jesler)
>> *Sent:* Thursday, May 08, 2014 8:51 PM
>> *To:* Cody Brugh
>> *Cc:* snort-devel at lists.sourceforge.net
>> *Subject:* Re: [Snort-devel] Fwd: Snort blocking connection but not
>> logging the drop
>>
>>   Can you send your configuration file, and a packet capture of the
>> session?
>>
>>  * Can you also send your usr1 / shutdown stats?
>>
>>
>> --
>> Joel Esler
>> Sent from my iPhone
>>
>> On May 8, 2014, at 20:49, "Cody Brugh" <cbrugh at ...2499...> wrote:
>>
>>   Hi,
>>
>>  Our dev team is trying to work with stamps.com API however our in-line
>> snort box is blocking the return connection for unknown reasons.  When I
>> turn off snort the connection flows perfectly.  Looking at snorby I see no
>> event of the connection being dropped.  I've included the command we are
>> running from a internal server that is behind the snort.  I also included
>> the tcpdump from this same server for the connection.
>>
>> wget https://216.52.211.91/label/health.aspx
>> --2014-05-08 20:37:33--  https://216.52.211.91/label/health.aspx
>> Connecting to 216.52.211.91:443... connected.
>>
>>
>> 20:37:33.443962 IP 10.2.2.1.52661 > 216.52.211.91.443: Flags [F.], seq
>> 3298140140, ack 2463587275, win 8208, options [nop,nop,TS val 2824990869
>> ecr 3731400338], length 0
>> 20:37:33.444478 IP 216.52.211.91.443 > 10.2.2.1.52661: Flags [R.], seq 1,
>> ack 1, win 8208, length 0
>> 20:37:33.989510 IP 10.2.2.1.59800 > 216.52.211.91.443: Flags [S], seq
>> 3306929108, win 65535, options [mss 1460,nop,wscale 3,sackOK,TS val
>> 2824990923 ecr 0], length 0
>> 20:37:34.071548 IP 216.52.211.91.443 > 10.2.2.1.59800: Flags [S.], seq
>> 361712399, ack 3306929109, win 4140, options [mss 1380,nop,wscale
>> 3,nop,nop,TS val 3731482846 ecr 2824990923,sackOK,eol], length 0
>> 20:37:34.071610 IP 10.2.2.1.59800 > 216.52.211.91.443: Flags [.], ack 1,
>> win 8208, options [nop,nop,TS val 2824990932 ecr 3731482846], length 0
>> 20:37:34.071750 IP 10.2.2.1.59800 > 216.52.211.91.443: Flags [P.], ack 1,
>> win 8208, options [nop,nop,TS val 2824990932 ecr 3731482846], length 139
>> 20:37:34.154367 IP 216.52.211.91.443 > 10.2.2.1.59800: Flags [.], ack
>> 140, win 517, options [nop,nop,TS val 3731482928 ecr 2824990932], length
>> 1368
>> 20:37:34.154462 IP 216.52.211.91.443 > 10.2.2.1.59800: Flags [.], ack
>> 140, win 517, options [nop,nop,TS val 3731482928 ecr 2824990932], length
>> 1368
>> 20:37:34.154490 IP 10.2.2.1.59800 > 216.52.211.91.443: Flags [.], ack
>> 2737, win 7877, options [nop,nop,TS val 2824990940 ecr 3731482928], length 0
>>
>> 20:37:44.153373 IP 216.52.211.91.443 > 10.2.2.1.59800: Flags [R.], seq
>> 4233:4288, ack 140, win 534, length 55
>>
>>  any help or suggestions would be great, I would like to disable the rule
>> that is blocking this connection but like I said I cannot see which rule
>> blocked it.
>>
>>  Thanks.
>>
>>
>>
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>
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