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Forum Topic - TCP Sessions and Maximum Segment Size: (2 Items)
   
TCP Sessions and Maximum Segment Size  
Hi, 
I'm a software developer using qnx4.25/tcp4.25 platform and I'm having a Maximum Segment Size (MSS) issue with client 
software (like web browsers) communicating with our qnx4.25/tcp4.25 Socket process. It doesn't happen with all clients, 
but I can reliably recreate it with one.

Security appliances are detecting when the MSS negotiation is being violated as documented in this Cisco tech note:
http://www.cisco.com/en/US/products/hw/vpndevc/ps2030/products_tech_note09186a00804c8b9f.shtml

Is there an update to the tcp4.25 modules Socket process that deals with this? Or any options I can try. I've done 
searches and been unable to find anything so far.

Thanks in advance for any attention to my question.
RE: TCP Sessions and Maximum Segment Size  

> -----Original Message-----
> From: Jackie Schmidt [mailto:community-noreply@qnx.com]
> Sent: May-14-09 4:53 PM
> To: qnx4-community
> Subject: TCP Sessions and Maximum Segment Size
> 
> Hi,
> I'm a software developer using qnx4.25/tcp4.25 platform and I'm having
> a Maximum Segment Size (MSS) issue with client software (like web
> browsers) communicating with our qnx4.25/tcp4.25 Socket process. It
> doesn't happen with all clients, but I can reliably recreate it with
> one.
> 
> Security appliances are detecting when the MSS negotiation is being
> violated as documented in this Cisco tech note:
> http://www.cisco.com/en/US/products/hw/vpndevc/ps2030/products_tech_not
> e09186a00804c8b9f.shtml
> 
> Is there an update to the tcp4.25 modules Socket process that deals
> with this? Or any options I can try. I've done searches and been unable
> to find anything so far.
> 


There is TCP5.0 don`t know if that`s going to help.

> Thanks in advance for any attention to my question.
> 
> 
> _______________________________________________
> QNX4 Community Support
> http://community.qnx.com/sf/go/post29487
>