Re: Fwd: Snort blocking connection but not logging the drop

["Joel Esler (jesler)" <jesler () cisco com>]

Can you send your configuration file, and a packet capture of the session?

--
Joel Esler
Sent from my iPhone

On May 8, 2014, at 20:49, "Cody Brugh" <cbrugh () gmail com<mailto:cbrugh () gmail com>> wrote:

Hi,

Our dev team is trying to work with stamps.com<http://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<tel: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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