# Telnet to the SLB **URL:** https://forum.sienci.com/t/telnet-to-the-slb/25951 **Category:** ❓Question **Created:** [March 16, 2026, 9:09pm UTC](https://forum.sienci.com/t/telnet-to-the-slb/25951 "2026-03-16T21:09:51Z") **Posts on this page:** 4 **Page:** 1
### Author: ![Chucky\_ott](https://forum.sienci.com/user_avatar/forum.sienci.com/chucky_ott/32/8692_2.png) [@Chucky\_ott](https://forum.sienci.com/u/Chucky_ott) #### Post date: [March 16, 2026, 9:09pm UTC](https://forum.sienci.com/t/telnet-to-the-slb/25951/1 "2026-03-16T21:09:51Z")
Out of curiosity, is it possible to telnet to the SLB? It’s available as a protocol but my attempt to connect failed. And if it is possible, can you send the same CNC commands that you would send via the gSender console? I could not find anything in the SLB documentation. ---
### Author: ![KGN](https://forum.sienci.com/letter_avatar_proxy/v4/letter/k/c77e96/32.png) [@KGN](https://forum.sienci.com/u/KGN) #### Post date: [March 17, 2026, 1:44pm UTC](https://forum.sienci.com/t/telnet-to-the-slb/25951/2 "2026-03-17T13:44:02Z")
Yup, it should be possible. Here’s connection using both telnet and NC. You can interact with the firmware the same way, by sending normal g-code or system commands. I’m just using the configured port ($305, default) and IP address ($302, default) ![Screenshot 2026-03-17 at 9.43.46 AM](https://forum.sienci.com/uploads/default/original/2X/4/48e46f443840c421241aa0bdf27129b3c09235c0.png) If you haven’t setup ethernet according to the docs, I’d start there: > **[Technical Manual - SuperLongBoard](https://resources.sienci.com/view/slb-manual/#ethernet-on-windows)** > > This document is the “SLB bible” for any of the ‘raw’ answers you might be looking for when setting up your new board. This includes sections on all the features, their pinouts, associated settings, and other things you should know when installing... ---
### Author: ![Chucky\_ott](https://forum.sienci.com/user_avatar/forum.sienci.com/chucky_ott/32/8692_2.png) [@Chucky\_ott](https://forum.sienci.com/u/Chucky_ott) #### Post date: [March 17, 2026, 2:05pm UTC](https://forum.sienci.com/t/telnet-to-the-slb/25951/3 "2026-03-17T14:05:09Z")
@KGN Thanks. It wasn’t working with PuTTY. But your response confirmed that it should work. So after more fiddling, a light bulb came on. I have gSender open and the controller may not accept more than one connection. Closed it and success connecting! ---
### Author: ![gwilki](https://forum.sienci.com/user_avatar/forum.sienci.com/gwilki/32/366_2.png) [@gwilki](https://forum.sienci.com/u/gwilki) #### Post date: [March 17, 2026, 2:06pm UTC](https://forum.sienci.com/t/telnet-to-the-slb/25951/4 "2026-03-17T14:06:32Z")