Recent content by NJRoadfan

Title says it all. Looking for software to query SNMP information from devices over DDP/AppleTalk, mostly to collect packet examples. Apple's MacSNMP sets up the computer as a SNMP client, but doesn't have any functionality to browse other machines or devices on the network. Dartware sold a...

Prime time to get these machines was the early 00s. Many places were switching over to G3/G4s to run OS X. I got a ton of these machines from a local college when they were scrapping them en-mass in 2002-03. Jokes on them, with an upgrade card and some RAM, they could run OS X pretty well via...

One showed up at a VCF Swapmeet once. I should have picked it up even though I don't have a IIe at the moment.

Since I have an easy way to trace packets on LocalTalk now here is the flow of NBP packets with a Fastpath and without a router. Using the LaserJet 4MP as the example printer. Router's node is 220 on both segments. Localtalk network number in routed examples is 5, Ethernet is 1. Without...

Sorry for the double post.... to add: Apple doesn't appear to have written any sort of reference AppleTalk router software to accommodate the specifications they wrote in Inside AppleTalk and earlier drafts. The first routers appear to be from 1986 (maybe even late-85?), based on the SEAGATE...

The Apple IIe Workstation card won't have a problem with NBP requests in long DDP packets, otherwise it wouldn't be able to locate services on other networks. What the IIe card doesn't recognize is short form RTMP broadcasts, specifically the RTMP stub listener in the firmware. Other early...

Notice that the packet in your screenshot is a NBP Broadcast directed to a router (at least the LC thinks it should be one) at node 129, not a NBP Lookup to the broadcast address. In this case, the router at node 129 should be re-transmitting those packets at NBP Lookups to the broadcast...

Something else on the network is generating NBP Lookups with a network of zero in the tuples. See packet #2 in tailtalk_capture_nbp-lookup and packet #2 in tailtalk_capture_LCII_reply.

Did anyone try this PR with an ImageWriter? https://github.com/lampmerchant/tashrouter/pull/2 This matches the behavior observed with a Shiva Fastpath 5 (at least from what I remember). Usenet posts state that the fix for the ImageWriter card was to always have a router send it NBP Lookups with...

Its likely the printer simply isn't responding to the incorrect NBP lookup packets. Once it gleans network information from a RTMP broadcast, the printer might ignore packets with network zero in the request.

@iigs123 Your packet dump needs some context. The LCII's response has a network number which indicates a router is present on LocalTalk. If so, the NBP lookups with a network of "zero" (which are likely from TailTalk) are wrong. If a router is detected on the network, TailTalk needs to send a...

The usenet posts documenting the NBP bugs in the ImageWriter are pretty confusing and unclear. That and a rant is interwoven about how the Webster Multigate is "well layered" and that any fix for the ImageWriter card will break it...

I totally missed it, but this cabling system is mentioned on page xxiii of Inside AppleTalk 2nd Edition.

Netatalk is going to get pretty grumpy with a read-only file system. Even if you run the share as ad=v2 (this uses the hidden .AppleDouble folders), its still going to try and write CNID information to the metadata files. Netatalk "should" work with the ._ file option (ad=ea), but the conversion...

No PR has been filed with the Wireshark Gitlab repo so I don't see it as a problem.