domenikos@emass.enet.dec.com (George Domenikos) (03/14/91)
I have notice that NBPlookup call cannot detect certain devices on an appletalk network. As an example I cannot detect Fastpath type 2 version 4.1.2 routers, although I have been able to detect earlier versions of Fastpath. I can still detect ethergates. Some other devices that are not detectable appear to be wellfleet routers, farallon star controllers, and cisco routers. Can any body help me on this as to how I can make my NBPlookup detect the above entities. Or at least can any one from the respective companies give me an idea as how can I detect those entities on my network. Is this problem perhaps related to appletalk phase II? In other words is there a different NBPlookup call to detect those specific devices. thanks george domenikos
cremer@Apple.COM (Mike Cremer) (03/16/91)
In article <4133@ryn.mro4.dec.com> domenikos@emass.enet.dec.com (George Domenikos) writes: > [...] Some other devices that are >not detectable appear to be wellfleet routers, farallon star controllers, >and cisco routers. >Can any body help me on this as to how I can make my NBPlookup detect >the above entities. The problem is not with the devices or the protocol, per se. NBP names must be registered by the device on the network. In the case of some of the devices (if not all) that you mention, the devices are designed to be network invisible (i.e. have no AppleTalk address) and consequently cannot register an NBP name. Hence, tools like Inter*Poll will not see them. This is true mostly of things like repeaters and star controllers (whose main function is to expand the number of available nodes on LocalTalk). As far as the true routers are concerned, there is no requirement that they register an NBP name, though many AppleTalk routers do. There is no real solution to your problem, short of some nasty link-level polling (i.e. checking to see if anyone is at the address you are interested in, and even this won't find repeaters). Note that this is also true for Macintoshes that do not register any services. That is the reason for Responder (basically). [didn't someone ask about Responder a while back?] Responder registers a name for the Macintosh corresponding to the chooser name and machine type. It provides no real services (except to Inter*Poll) but it does allow network administrators to see Macintoshes even though they have no "offical" service published (like AppleShare). Basically, you cannot use NBP to locate devices unless that device has registered an NBP name. >thanks >george domenikos For what it's worth, you're welcome. :-) $mike cremer apple network systems development
jerrys@canada.sbi.com (Jerry Simonowits) (03/19/91)
Just thought I would let you know that cisco routers do show up when I run interpol.