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Re: VM/370 CE an05d SNA (via DLSw)


 

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Michael,

So you are correct there is no SNA in VM/370 so a VTAM connection isn't possible. However some 3174s can run TCP/IP and if they have CUT mode terminals then these can initiate TN3270? sessions to Hercules.
I have done this via Token Ring through a Cisco Router which routed the IP across to an Ethernet network.
You need either two 2.4 Mb floppy drives or one 2.4 and a hard disk, and an Ethernet or Token Ring card.

Dave

On 11/05/2025 19:51, Michael Grom via groups.io wrote:

Dear Forum,

a fellow board member on a German vintage computer forum, who has a 3174 and a Cisco Router asked me if it is possible to attach these to a Hercules emulator running VM/370. For the best of my knowledge, all 3270 in VM are locally attached. Is there a chance to configure such a SNA connection in VM/370 or is that only available in later versions of VM? So far, all examples on the Internet were targeting MVS 3.8j with TK4- and a Hercules with an updated 3705 device. Still kind of bumpy I daresay but working. However, that fellow keeps asking for VM, not MVS.?

kind regards
Michael
--
TK5? ? ? ? on Raspberry Pi 5 with Raspberry OS "bookworm"
TK4-? ? ? on Raspberry Pi 5 with Raspberry OS "bookworm"
VM/370 on Raspberry Pi 5 with Raspberry OS "bookworm"

Lime and limpid green, a second scene
Now fights between the blue you once knew
Floating down, the sound resounds
Around the icy waters underground
Jupiter and Saturn, Oberon, Miranda and Titania
Neptune, Titan, stars can frighten
(Syd Barrett of Pink Floyd)

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