Hey, I was thinking of trying some network programming over TCP/IP. My questioin is: When using TCP/IP do you need checksumming, acks, nacks and that kinda stuff in your program, or is this already implemented at the TCP/IP level???

If the connection isn't broken, am I garenteed to get on the server what I sent from the client???

Thanks.

Oh wait! One more thing. If you don't have a ethernet card on your coputer, and no internet/networking drivers installed at all, does the local loopback connection to 127.0.0.1 still exists? Does it for both Windows and Linux??? Thanks!

no, the underlying protocols handle all the checksumming, ACK'ing, packet loss, etc. for u. and yes, tcp guarantees all data will arrive correctly. and loopback should always work as long as u didn't recompile ur kernel and take it out.

1. Nope, it's all taken care for you

2. Kinda skewed question - if everything is perfect then you can assume you will get what you sent - TCP provides best effort delivery - oops rong way round IP=best effort, TCP=quaranteed

3. Good question - I'd imagine yes, at least on linux anyway but someone can clarify

I had a reply all ready, but infamous41md covered the same bases.

So, I'll just add one thing: one question mark ('?') is sufficient. Two can potentially be cute. Three is an indication of deep emotional problems.

P.S I'm trying to boost the total post count, as my chosen date is approaching quickly.

P.P.S It's a joke :P.

but 4 is dead sexy !!!!

Sorry! I just try to type fast, so I just got into the habbit of pushing '?' a few times. I will try not to anymore.

Btw, 5 means your a Nerd!

?????



EDIT: Thanks allot guys!