garrett@oscar.ccm.udel.edu (10/05/89)
We are looking at hooking up two separate localtalk networks on campus here through the campus-wide IP backbone. I am aware that either the KFPS-4 using KSTAR or the earlier K-boxes with KIP are capable of encapsulating AppleTalk packets in IP for transport across IP networks. My main question is this: Does the IP encapsulation of appletalk packets prevent ethernet-connected appletalk hosts from seeing them? For example, we have AlisaShare running on our Vax 11/785. If we use just the regular Kinetics combined gateway code as we are now on our existing KFPS-2s, the server is only visible from our local ethernet on down to all its kfps-attached localtalk networks. There is at least one IP router separating our local localtalk net from to other site which would like to be able to access our alisashare server. Unless KSTAR/KIP strips the ip envelope off of each encapsulated packet that it receives from the remote localtalk network via the IP network and retransmit it onto the ethernet it is immediately connected to, won't the Alisashare server be unable to recognize the packets as being 'ethertalk' packets? Also, is the IP encapsulation going to be done as broadcasts, which probably aren't going to make it past our local net's IP gateway onto the university backbone to get over to the remote site? I've tried asking Alisa Systems about this and they generally said "ask kinetics", but I am still waiting for them to get back with me. We haven't bought a KSTAR-capable box from them yet, but we have need in the immediate future to do this, and I don't want to break any of the other hardware/software we've invested in to do so. As usual, thanks in advance for any advice you all can lend! +-------------------------------------+--------------------------------------+ | Joel J. Garrett, Research Associate | Phone: (302)-451-2332 | | Center for Composite Materials | inet: garrett@oscar.ccm.udel.edu | | University of Delaware | - or - | | Newark, Delaware 19716 | garrett@udel.edu | +-------------------------------------+--------------------------------------+
garrett@oscar.ccm.udel.edu (10/05/89)
In article <784@nigel.udel.EDU>, garrett@oscar.ccm.udel.edu writes... >We are looking at hooking up two separate localtalk networks on campus here >through the campus-wide IP backbone. I am aware that either the KFPS-4 using >KSTAR or the earlier K-boxes with KIP are capable of encapsulating AppleTalk >packets in IP for transport across IP networks. I just got through talking with someone from Kinetics/Excelan and now I'm not even sure if I understand exactly all of the services that KSTAR/KIP provide. Are these essentially the same things as the old Kinetics combined gateway code which allow the K-box to act as both an IP and an AppleTalk router, with the possible exception of some added bells and whistles? If this is the case, what are these bells and whistles and what, if anything, is there that is available that would accomplish IP encapsulation of Appletalk packets such that the above situation (getting appletalk packets across an IP network) could be handled? Also, does KIP/KSTAR allow one to limit which zones one can access (for example, don't let the english dept print on the chemistry dept's laserwriters - this is a general hypothetical case, but access control will be an important issue if the above is possible) +-------------------------------------+--------------------------------------+ | Joel J. Garrett, Research Associate | Phone: (302)-451-2332 | | Center for Composite Materials | inet: garrett@oscar.ccm.udel.edu | | University of Delaware | - or - | | Newark, Delaware 19716 | garrett@udel.edu | +-------------------------------------+--------------------------------------+