You may want or you may not want the UDP checksum, depending on what sort of error checking exists in the overlying protocol. This needs to be determined on a protocol by protocol, per socket, since some protocols might want it and others might not. It must be the application programmers choice and freedom to decide whether they need this or not by turning it off and on through a socket option.
Turning on and off the dont fragment bit determines whether a packet will be broken up into fragments if it is too large for a router along the path, or whether a messsage too big error will be returned. This would be useful for many things, such as a PMTU implementation (Path MTU, largest allowed packet size for a route to a destination). Agian, this needs to be per socket, since some protocol might want it and others not. Some might want to use their own PMTU implementation, some may not want to use any PMTU. These are options that should be available to the programmer for their freedom. Yes, I really do need these features, and others may. Just becuase one person might not need them doesn't mean no one else should not have access to them. __________________________________ Do you Yahoo!? Yahoo! SiteBuilder - Free, easy-to-use web site design software http://sitebuilder.yahoo.com _______________________________________________ [EMAIL PROTECTED] mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-net To unsubscribe, send any mail to "[EMAIL PROTECTED]"
