On 5/14/2010 3:11 PM, Steve Simmons wrote: > > At this point I'm guessing that the nat box is dropping the mapping between > internal and external UDP ports. The 1.5.73 release notes mention this issue, > saying they add UDP keepalive for just that reason.
That is indeed the problem. > Next step would be to have him try 1.5.74, but before he goes that far I'd be > interested in anyone who's seen similar problems and what if anything fixed > them. This is the solution. The NAT ping functionality in the 1.5.74 rx library was added to ensure that there is sufficient outbound traffic to convince the firewall or NAT to leave the in-bound port open. Jeffrey Altman
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