RE: TCP/IP Sockets

["Rich Duzenbury" <rduz@xxxxxxxx>]

> And we (at least Tim & I) would like to know how to get SO_KEEPALIVE to
> work.  

As I understand SO_KEEPALIVE, it's implementation is optional, not required.  
I've never used it, although the IBM manual does indicate that it will work for 
sockets of family AF_INET and type SOCK_STREAM.

However, my winsock book does not indicate clearly whether the microsoft TCP 
stack supports keepalive.  It does however, say, 'If you feel that your 
application needs some type of keep-alive mechanism, the best alternative is to 
implement it yourself in the application.  Of course, this is only possible if 
you  have access to the source fode for both the server and the client 
applications.'

I believe the implementation mechanism is discussed in RFC 1122, section 
4.2.3.6. http://rfc.fh-koeln.de/rfc/html/rfc1122.html#101

I take it you've tried to SetSocketOpt it, and it did nothing?

Regards,
Rich

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