# Communicating from RCM2100 to Dynamic C using TCP/IP Connection
**URL:** https://forums.digi.com/t/communicating-from-rcm2100-to-dynamic-c-using-tcp-ip-connection/13252
**Category:** Rabbit
**Tags:** communication, dynamic-c, rcm3000, tcp-ip
**Created:** [July 3, 2014, 8:22am UTC](https://forums.digi.com/t/communicating-from-rcm2100-to-dynamic-c-using-tcp-ip-connection/13252 "2014-07-03T08:22:43Z")
**Posts on this page:** 2
**Page:** 1
### Author:  [@BeginnerUser](https://forums.digi.com/u/BeginnerUser)
#### Post date: [July 3, 2014, 8:22am UTC](https://forums.digi.com/t/communicating-from-rcm2100-to-dynamic-c-using-tcp-ip-connection/13252/1 "2014-07-03T08:22:43Z")
Hello, I’m very new to rabbit microcontrollers and dynamic C and I was hoping for some help getting started.
I am trying to connect to and program my RCM 2100 micro controller from my computer using an ethernet connection (specifically through a micro-LAN connection). However, I’m having difficulty connecting to dynamic C.
I go to Options \> Communications and then chose the Use TCP/IP Connection radio button. I then press the Discover button to find the network, but it doesn’t find anything.
Is there something I have to do beforehand to set up my network for dynamic C to connect? What am I supposed to enter for Network Address, Controller Name, and Control Port?
Unfortunately all the manuals I could find talk about how to set it up through a serial connection using the programming cable, but not through TCP/IP. Do I need a programming cable even though I want to program through the ethernet connection?
Is there a manual I didn’t see that covers how to set up the network? Or some information I need to know before connecting?
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### Author:  [@trooper2](https://forums.digi.com/u/trooper2)
#### Post date: [July 7, 2014, 5:13pm UTC](https://forums.digi.com/t/communicating-from-rcm2100-to-dynamic-c-using-tcp-ip-connection/13252/2 "2014-07-07T17:13:21Z")
You can only connect via serial connection in order to debug with Dynamic C.
You can download firmware via TCP but you would need to install a download manager. See TN224 at this link [http://www.digi.com/support/productdetail?pid=4978&type=documentation](http://www.digi.com/support/productdetail?pid=4978&type=documentation).