[kman42]

I'm having trouble getting my rendezvous enabled app to work. Here's the situation:

It works great at home over airport between my G4 and my iBook (both with 10.0.1.x IPs), but I can't seem to get it to work at work. The computers I am trying it on are on the same subnet and they seem to see each other as the rendezvous code is returning the names of the remote machines and it says it has resolved the addresses. The problem is that the addresses they resolve don't seem to be correct or the remote machines can't be found with the resolved adress or they won't respond. Is there something simple I might be missing here? I'm not quite sure how to get the resolved addresses to print out in a human readable format. I tried this:

Code:
NSData * address = [[[discoveredServices objectAtIndex:index] addresses] objectAtIndex:0];
            NSLog(@"address=%@",[address description]);

but the address that it prints isn't an IP which is what I was expecting.

kman

[Diggory Laycock]

If you pass an instance of a class to NSLog - it is the equivalent of passing it [obj description]

so you only need to write NSLog(@"data: %@", theData)

Anyway - back to the point - the data you are passed is not an "address object" it is an NSData object that contains a C struct - specifically: sockaddr_in

see here for more info:

http://www.macdevcenter.com/pub/a/ma...oa.html?page=2

[kman42]

I turned off the firewall on the remote machine and now it works great. Is there a specific port range that it is okay to use for your own app? I don't want to conflict with anything.

kman

[proton]

Originally posted by kman42:
I turned off the firewall on the remote machine and now it works great. Is there a specific port range that it is okay to use for your own app? I don't want to conflict with anything.

If it's an app that you're intending to unleash on the world, you should probably get an assigned port from IANA. However, if it is a rendezvous only service, you could allow the OS to assign you a dynamic address and just advertise the port over Rendezvous and require no assigned port, but that approach could cause problems with machines with firewalls having no definate port to open up.

- proton