Try tcpdump + wireshark. Then read this: http://packetlife.net/blog/2010/jun/7/understanding-tcp-sequence-acknowledgment-numbers/
pfSense should not change sequence numbers unless you tell it to do so. for packet breakdown read : http://www.daemon.org/tcp.html Google is your friend ;-) On Fri, Sep 13, 2013 at 4:15 PM, Martin Fuchs <[email protected]> wrote: > Hi !**** > > ** ** > > We use pfSense 2.0.1 and have a local LAN, a WAN and remote Offices > connected by managed VPN-connections (pfsense does not need to stablish > VPN tot he remote offices).**** > > ** ** > > LAN -> pfSense -> remote office**** > > ** ** > > In the LAN we have a HiPath Communications system and in the remote > offices one remote system each.**** > > pfSense only routes between these locations. There is no filtering (in the > floating rules everthing is allowed between LAN and remote offices.**** > > ** ** > > Firewall-scrub, clear DF and random id generation are disabled.**** > > ** ** > > Does pfSense in this configuration change the TCP sequence numbers oft he > conections between the communication systems ?**** > > And is there any simple way how i can check this ?**** > > ** ** > > Regards,**** > > ** ** > > martin**** > > ** ** > > ** ** > > _______________________________________________ > List mailing list > [email protected] > http://lists.pfsense.org/mailman/listinfo/list > >
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