FNE Setup & Configuration

What is the role of the FNE?

  • A network "core", this provides a central server for dvmhost instances to connect to and be networked with, allowing relay of traffic and other data between dvmhost instances and other dvmfne instances. See configuration to configure.

Prerequisites

  1. A workstation, server, or virtual machine running Linux to act as the FNE.
    1. This guide will showcase a remote VPS running Debian 12 (Bookworm).
  2. An open port for the hotspot devices to connect to
    1. This guide is using the default port: 62031
    2. A site-to-site VPN could also be established from the hotspot to the VPS negating the need for an exposed port; this guide will not be covering that topology at this time.
  3. The dvmfne binary from the latest dvmhost release for your CPU architecture.
    1. At the time of writing, R04H31 2025-05-25 was the latest release.
      1. dvmhost-2025-05-25-amd64.tar.gz

Connect to the VPS & Download The dvmhost Release For Your CPU Architecture

  1. Download the archive from the DVMProject GitHub
ssh user@remotevps
cd /opt/
sudo wget https://github.com/DVMProject/dvmhost/releases/download/2025-05-25/dvmhost-2025-05-25-amd64.tar.gz
  1. Extract & remove the archive
sudo tar zxvf dvmhost-2025-05-25-amd64.tar.gz

# Optional step
sudo rm /opt/dvmhost-2025-05-25-amd64.tar.gz

Organize the /opt/dvm working directory

cd /opt/dvm/
sudo mkdir /opt/dvm/examples/
sudo mv /opt/dvm/*.example.* /opt/dvm/examples/

Copy the base configuration file to the /opt/dvm working directory.

sudo cp /opt/dvm/examples/fne-config.example.yml /opt/dvm/fne-config.yml

Define the settings for P25 communication in fne-config.yml

sudo nano /opt/dvm/fne-config.yml

These dotted paths below represent nodes within the YAML syntax of fne-config.yml

  1. log.filePath: /opt/dvm/log
  2. log.activityFilePath: /opt/dvm/log
  3. master.peerId: 1234567
  4. master.password: 00AABBCCDDEEFF112233445566778899
  5. master.allowDMRTraffic: false
  6. master.allowP25Traffic: true
  7. master.allowNXDNTraffic: false
  8. master.parrotGrantDemand: true
  9. parrotOnlyToOrginiatingPeer: true This typo is present in the live config
  10. master.talkgroup_rules.file: /opt/dvm/rules/talkgroup_rules.yml
  11. system.radio_id.file: /opt/dvm/rules/rid_acl.dat

Copy the following example configurations as live versions.

sudo mkdir /opt/dvm/rules/
sudo cp /opt/dvm/examples/rid_acl.example.dat /opt/dvm/rules/rid_acl.dat
sudo cp /opt/dvm/examples/talkgroup_rules.example.yml /opt/dvm/rules/talkgroup_rules.yml
sudo cp /opt/dvm/examples/peer_list.example.dat /opt/dvm/rules/peer_list.dat

Populate radio_acl.dat

sudo nano /opt/dvm/rules/radio_acl.dat

#
# This file sets the valid Radio IDs allowed on a repeater.
#
# Entry Format: "RID,Enabled (1 = Enabled / 0 = Disabled),Optional Alias,Optional IP Address,<newline>"
#
#1234,1,RID Alias,IP Address,
5432,1,Name-Of-User-1,
9999,1,Name-Of-User-2,
4321,1,Name-Of-User-3,

[ensure-to-leave-a-new-line-at-the-end]

Populate peer_list.dat

sudo nano /opt/dvm/rules/peer_list.dat

#
# This file sets the valid peer IDs allowed on a FNE.
#
# Entry Format: "Peer ID,Peer Password,Peer Link (1 = Enabled / 0 = Disabled),Peer Alias (optional),Can Request Keys (1 = Enabled / 0 = Disabled),<newline>"
1234567,99887766554433221100FFEEDDCCBBAA,1,NAME-1,1,
7654321,99887766554433221100FFEEDDCCBBAA,1,NAME-2,1,

[ensure-to-leave-a-new-line-at-the-end]
#1234,,0,,1,
#5678,MYSECUREPASSWORD,0,,0,
#9876,MYSECUREPASSWORD,1,,0,
#5432,MYSECUREPASSWORD,,Peer Alias 1,0,
#1012,MYSECUREPASSWORD,1,Peer Alias 2,1,

Populate talkgroup_rules.yml

sudo nano /opt/dvm/rules/talkgroup_rules.yml

These dotted paths below represent nodes within the YAML syntax of talkgroup_rules.yml

  1. Primary Channel
    1. groupVoice.name: MYTGNAME
    2. groupVoice.alias: MYTGNAME
    3. groupVoice.config.active: true
    4. groupVoice.source.tgid: 12345
  2. Parrot Channel
    1. groupVoice.name: MYPARROTTG
    2. groupVoice.alias: MYPARROTTG
    3. groupVoice.config.active: true
    4. groupVoice.config.parrot: true
    5. groupVoice.source.tgid: 54321

Start the FNE daemon

sudo /opt/dvm/start-dvm-fne.sh fne-config.yml

Log Entry Examples

Peer Connecting
I: (NET) PEER 1234567 started login from, 192.168.100.100:32960
I: (NET) PEER 1234567 RPTL ACK, challenge response sent for login
I: (NET) PEER 1234567 RPTK ACK, completed the login exchange
I: (NET) PEER 1234567 RPTC ACK, completed the configuration exchange
I: (NET) PEER 1234567 reports identity [IDENTITY]
I: (NET) PEER 1234567 reports software DVM_R04H31
I: (NET) PEER 1234567 (IDENTITY) sending ACL list updates
U: 001234567 ( IDENTITY) M: 2025-06-06 01:16:05.775 (NET) PEER 1234567 RPTC ACK, master commanded alternate port for diagnostics and activity logging, remotePeerId = 9039148
U: 001234567 ( IDENTITY) I: 2025-06-06 01:16:10.717 (HOST) Host is running on a hotspot modem! Fixed mode is forced.
U: 001234567 ( IDENTITY) M: 2025-06-06 01:16:10.717 (HOST) [ OK ] host:rpc
U: 001234567 ( IDENTITY) M: 2025-06-06 01:16:10.718 (HOST) [ OK ] host:watchdog
U: 001234567 ( IDENTITY) M: 2025-06-06 01:16:10.718 (HOST) [ OK ] host:modem
U: 001234567 ( IDENTITY) M: 2025-06-06 01:16:10.719 (HOST) [ OK ] p25d:frame-r
U: 001234567 ( IDENTITY) M: 2025-06-06 01:16:10.719 (HOST) [ OK ] p25d:frame-w
U: 001234567 ( IDENTITY) I: 2025-06-06 01:16:10.720 (HOST) [ OK ] Host is up and running on Linux 6.12.25+rpt-rpi-v7 armv7l
U: 001234567 ( IDENTITY) M: 2025-06-06 01:16:10.720 (HOST) [ OK ] host:site-data
I: (NET) PEER 1234567 (IDENTITY) ping, pingsReceived = 1, lastPing = 1135288524, now = 1135298546
U: 001234567 ( IDENTITY) W: 2025-06-06 01:16:15.799 (NET) PEER 1234567 pong, time delay greater than 360ms, now = 1749186975799, server = 1749186988018, dt = 12219
Peer Disconnecting
I: (NET) PEER 1234567 (IDENTITY) disconnected
Parrot Communication
U: PEER-ID ( IDENTITY) M: 2025-06-06 19:26:39.149 (RF) P25, HDU (Header Data Unit), dstId = 38002, algo = $80, kid = $0000
U: PEER-ID ( IDENTITY) M: 2025-06-06 19:26:39.150 (RF) P25, LDU1 (Logical Link Data Unit 1), audio, mfId = $00 srcId = 3820, dstId = 38002, group = 1, emerg = 0, encrypt = 0, prio = 4, errs = 2/1233 (0.2%)
U: PEER-ID ( IDENTITY) M: 2025-06-06 19:26:39.329 (RF) P25, LDU2 (Logical Link Data Unit 2), audio, algo = $80, kid = $0000, errs = 1/1233 (0.1%)
U: PEER-ID ( IDENTITY) M: 2025-06-06 19:26:39.508 (RF) P25, LDU1 (Logical Link Data Unit 1), audio, mfId = $00 srcId = 3820, dstId = 38002, group = 1, emerg = 0, encrypt = 0, prio = 4, errs = 2/1233 (0.2%)
U: PEER-ID ( IDENTITY) M: 2025-06-06 19:26:39.687 (RF) P25, LDU2 (Logical Link Data Unit 2), audio, algo = $80, kid = $0000, errs = 1/1233 (0.1%)
U: PEER-ID ( IDENTITY) M: 2025-06-06 19:26:39.872 (RF) P25, LDU1 (Logical Link Data Unit 1), audio, mfId = $00 srcId = 3820, dstId = 38002, group = 1, emerg = 0, encrypt = 0, prio = 4, errs = 6/1233 (0.5%)
U: PEER-ID ( IDENTITY) M: 2025-06-06 19:26:40.051 (RF) P25, LDU2 (Logical Link Data Unit 2), audio, algo = $80, kid = $0000, errs = 7/1233 (0.6%)
U: PEER-ID ( IDENTITY) M: 2025-06-06 19:26:40.230 (RF) P25, LDU1 (Logical Link Data Unit 1), audio, mfId = $00 srcId = 3820, dstId = 38002, group = 1, emerg = 0, encrypt = 0, prio = 4, errs = 0/1233 (0.0%)
U: PEER-ID ( IDENTITY) M: 2025-06-06 19:26:40.409 (RF) P25, LDU2 (Logical Link Data Unit 2), audio, algo = $80, kid = $0000, errs = 0/1233 (0.0%)
U: PEER-ID ( IDENTITY) M: 2025-06-06 19:26:40.588 (RF) P25, LDU1 (Logical Link Data Unit 1), audio, mfId = $00 srcId = 3820, dstId = 38002, group = 1, emerg = 0, encrypt = 0, prio = 4, errs = 2/1233 (0.2%)
U: PEER-ID ( IDENTITY) M: 2025-06-06 19:26:40.772 (RF) P25, LDU2 (Logical Link Data Unit 2), audio, algo = $80, kid = $0000, errs = 1/1233 (0.1%)
U: PEER-ID ( IDENTITY) M: 2025-06-06 19:26:40.951 (RF) P25, LDU1 (Logical Link Data Unit 1), audio, mfId = $00 srcId = 3820, dstId = 38002, group = 1, emerg = 0, encrypt = 0, prio = 4, errs = 1/1233 (0.1%)
U: PEER-ID ( IDENTITY) M: 2025-06-06 19:26:41.130 (RF) P25, LDU2 (Logical Link Data Unit 2), audio, algo = $80, kid = $0000, errs = 2/1233 (0.2%)
U: PEER-ID ( IDENTITY) M: 2025-06-06 19:26:41.309 (RF) P25, LDU1 (Logical Link Data Unit 1), audio, mfId = $00 srcId = 3820, dstId = 38002, group = 1, emerg = 0, encrypt = 0, prio = 4, errs = 0/1233 (0.0%)
U: PEER-ID ( IDENTITY) M: 2025-06-06 19:26:41.488 (RF) P25, LDU2 (Logical Link Data Unit 2), audio, algo = $80, kid = $0000, errs = 5/1233 (0.4%)
U: PEER-ID ( IDENTITY) M: 2025-06-06 19:26:41.668 (RF) P25, LDU1 (Logical Link Data Unit 1), audio, mfId = $00 srcId = 3820, dstId = 38002, group = 1, emerg = 0, encrypt = 0, prio = 4, errs = 1/1233 (0.1%)
M: (NET) P25, Parrot Playback will Start, peer = 9039148, srcId = 3820
M: (NET) P25, Call End, peer = 9039148, srcId = 3820, dstId = 38002, duration = 2, streamId = 3063698845, external = 0
U: PEER-ID ( IDENTITY) M: 2025-06-06 19:26:41.673 (RF) P25, TDU (Simple Terminator Data Unit), total frames: 15, bits: 18496, undecodable LC: 0, errors: 31, BER: 0.1676%
U: PEER-ID ( IDENTITY) M: 2025-06-06 19:26:41.707 (RF) P25, TDULC (Terminator Data Unit with Link Control), CALL_TERM (Call Termination), srcId = 3820, dstId = 38002
I: (NET) PEER 9039148 (IDENTITY) ping, pingsReceived = 2860, lastPing = 1200712208, now = 1200713943
M: (NET) P25, Parrot Grant Demand, peer = 9039148, srcId = 3820, dstId = 38002
U: PEER-ID ( IDENTITY) M: 2025-06-06 19:26:43.883 (NET) P25, HDU (Header Data Unit), dstId = 38002, algo = $80, kid = $0000
U: PEER-ID ( IDENTITY) M: 2025-06-06 19:26:43.884 (NET) P25, LDU1 (Logical Link Data Unit 1) audio, mfId = $00, srcId = 3820, dstId = 38002, group = 1, emerg = 0, encrypt = 0, prio = 4, sysId = $001, netId = $BB800
U: PEER-ID ( IDENTITY) M: 2025-06-06 19:26:43.884 (NET) P25, LDU2 (Logical Link Data Unit 2) audio, algo = $80, kid = $0000
U: PEER-ID ( IDENTITY) M: 2025-06-06 19:26:44.058 (NET) P25, LDU1 (Logical Link Data Unit 1) audio, mfId = $00, srcId = 3820, dstId = 38002, group = 1, emerg = 0, encrypt = 0, prio = 4, sysId = $001, netId = $BB800
U: PEER-ID ( IDENTITY) M: 2025-06-06 19:26:44.242 (NET) P25, LDU2 (Logical Link Data Unit 2) audio, algo = $80, kid = $0000
U: PEER-ID ( IDENTITY) M: 2025-06-06 19:26:44.467 (NET) P25, LDU1 (Logical Link Data Unit 1) audio, mfId = $00, srcId = 3820, dstId = 38002, group = 1, emerg = 0, encrypt = 0, prio = 4, sysId = $001, netId = $BB800
U: PEER-ID ( IDENTITY) M: 2025-06-06 19:26:44.595 (NET) P25, LDU2 (Logical Link Data Unit 2) audio, algo = $80, kid = $0000
U: PEER-ID ( IDENTITY) M: 2025-06-06 19:26:44.774 (NET) P25, LDU1 (Logical Link Data Unit 1) audio, mfId = $00, srcId = 3820, dstId = 38002, group = 1, emerg = 0, encrypt = 0, prio = 4, sysId = $001, netId = $BB800
U: PEER-ID ( IDENTITY) M: 2025-06-06 19:26:44.959 (NET) P25, LDU2 (Logical Link Data Unit 2) audio, algo = $80, kid = $0000
U: PEER-ID ( IDENTITY) M: 2025-06-06 19:26:45.143 (NET) P25, LDU1 (Logical Link Data Unit 1) audio, mfId = $00, srcId = 3820, dstId = 38002, group = 1, emerg = 0, encrypt = 0, prio = 4, sysId = $001, netId = $BB800
U: PEER-ID ( IDENTITY) M: 2025-06-06 19:26:45.317 (NET) P25, LDU2 (Logical Link Data Unit 2) audio, algo = $80, kid = $0000
U: PEER-ID ( IDENTITY) M: 2025-06-06 19:26:45.501 (NET) P25, LDU1 (Logical Link Data Unit 1) audio, mfId = $00, srcId = 3820, dstId = 38002, group = 1, emerg = 0, encrypt = 0, prio = 4, sysId = $001, netId = $BB800
U: PEER-ID ( IDENTITY) M: 2025-06-06 19:26:45.680 (NET) P25, LDU2 (Logical Link Data Unit 2) audio, algo = $80, kid = $0000
U: PEER-ID ( IDENTITY) M: 2025-06-06 19:26:45.879 (NET) P25, LDU1 (Logical Link Data Unit 1) audio, mfId = $00, srcId = 3820, dstId = 38002, group = 1, emerg = 0, encrypt = 0, prio = 4, sysId = $001, netId = $BB800
U: PEER-ID ( IDENTITY) M: 2025-06-06 19:26:46.037 (NET) P25, LDU2 (Logical Link Data Unit 2) audio, algo = $80, kid = $0000
U: PEER-ID ( IDENTITY) M: 2025-06-06 19:26:46.409 (NET) P25, LDU1 (Logical Link Data Unit 1) audio, mfId = $00, srcId = 3820, dstId = 38002, group = 1, emerg = 0, encrypt = 0, prio = 4, sysId = $001, netId = $BB800
U: PEER-ID ( IDENTITY) M: 2025-06-06 19:26:46.415 (NET) P25, TDU (Simple Terminator Data Unit), srcId = 3820
U: PEER-ID ( IDENTITY) M: 2025-06-06 19:26:46.547 (RF) P25, TDULC (Terminator Data Unit with Link Control), CALL_TERM (Call Termination), srcId = 3820, dstId = 38002
E: (NET) PEER 9000990, retrying master login, remotePeerId = 0
U: PEER-ID ( IDENTITY) M: 2025-06-06 19:26:48.406 (NET) talkgroup hang has expired, lastDstId = 38002
Talkgroup Communication
[COMING SOON]
Talkgroup Communication (Encrypted)
U: PEER-ID ( IDENTITY) M: 2025-06-06 19:28:13.439 (RF) P25, HDU (Header Data Unit), dstId = 38001, algo = $84, kid = $0003
U: PEER-ID ( IDENTITY) M: 2025-06-06 19:28:13.440 (RF) P25, LDU1 (Logical Link Data Unit 1), audio, mfId = $00 srcId = 3820, dstId = 38001, group = 1, emerg = 0, encrypt = 1, prio = 4, errs = 0/1233 (0.0%)
U: PEER-ID ( IDENTITY) M: 2025-06-06 19:28:13.618 (RF) P25, LDU2 (Logical Link Data Unit 2), audio, algo = $84, kid = $0003, errs = 1/1233 (0.1%)
U: PEER-ID ( IDENTITY) M: 2025-06-06 19:28:13.619 (RF) P25, LDU2 (Logical Link Data Unit 2), Enc Sync, MI = C1 7C 1E 45 F0 F6 94 44 00
U: PEER-ID ( IDENTITY) M: 2025-06-06 19:28:13.798 (RF) P25, LDU1 (Logical Link Data Unit 1), audio, mfId = $00 srcId = 3820, dstId = 38001, group = 1, emerg = 0, encrypt = 1, prio = 4, errs = 0/1233 (0.0%)
U: PEER-ID ( IDENTITY) M: 2025-06-06 19:28:13.977 (RF) P25, LDU2 (Logical Link Data Unit 2), audio, algo = $84, kid = $0003, errs = 3/1233 (0.2%)
U: PEER-ID ( IDENTITY) M: 2025-06-06 19:28:13.978 (RF) P25, LDU2 (Logical Link Data Unit 2), Enc Sync, MI = 9C 03 CE 4D 6C AD AA 96 00
U: PEER-ID ( IDENTITY) M: 2025-06-06 19:28:14.157 (RF) P25, LDU1 (Logical Link Data Unit 1), audio, mfId = $00 srcId = 3820, dstId = 38001, group = 1, emerg = 0, encrypt = 1, prio = 4, errs = 2/1233 (0.2%)
U: PEER-ID ( IDENTITY) M: 2025-06-06 19:28:14.341 (RF) P25, LDU2 (Logical Link Data Unit 2), Enc Sync, MI = 20 12 E1 85 ED 94 20 96 00
U: PEER-ID ( IDENTITY) M: 2025-06-06 19:28:14.341 (RF) P25, LDU2 (Logical Link Data Unit 2), audio, algo = $84, kid = $0003, errs = 8/1233 (0.6%)
U: PEER-ID ( IDENTITY) M: 2025-06-06 19:28:14.520 (RF) P25, LDU1 (Logical Link Data Unit 1), audio, mfId = $00 srcId = 3820, dstId = 38001, group = 1, emerg = 0, encrypt = 1, prio = 4, errs = 2/1233 (0.2%)
U: PEER-ID ( IDENTITY) M: 2025-06-06 19:28:14.699 (RF) P25, LDU2 (Logical Link Data Unit 2), audio, algo = $84, kid = $0003, errs = 3/1233 (0.2%)
U: PEER-ID ( IDENTITY) M: 2025-06-06 19:28:14.700 (RF) P25, LDU2 (Logical Link Data Unit 2), Enc Sync, MI = C2 51 17 3A E6 C1 C5 0A 00
U: PEER-ID ( IDENTITY) M: 2025-06-06 19:28:14.878 (RF) P25, LDU1 (Logical Link Data Unit 1), audio, mfId = $00 srcId = 3820, dstId = 38001, group = 1, emerg = 0, encrypt = 1, prio = 4, errs = 4/1233 (0.3%)
U: PEER-ID ( IDENTITY) M: 2025-06-06 19:28:15.057 (RF) P25, LDU2 (Logical Link Data Unit 2), audio, algo = $84, kid = $0003, errs = 2/1233 (0.2%)
U: PEER-ID ( IDENTITY) M: 2025-06-06 19:28:15.058 (RF) P25, LDU2 (Logical Link Data Unit 2), Enc Sync, MI = 2E 49 2A 15 DC 59 B6 A6 00
U: PEER-ID ( IDENTITY) M: 2025-06-06 19:28:15.236 (RF) P25, LDU1 (Logical Link Data Unit 1), audio, mfId = $00 srcId = 3820, dstId = 38001, group = 1, emerg = 0, encrypt = 1, prio = 4, errs = 3/1233 (0.2%)
U: PEER-ID ( IDENTITY) M: 2025-06-06 19:28:15.420 (RF) P25, LDU2 (Logical Link Data Unit 2), audio, algo = $84, kid = $0003, errs = 1/1233 (0.1%)
U: PEER-ID ( IDENTITY) M: 2025-06-06 19:28:15.421 (RF) P25, LDU2 (Logical Link Data Unit 2), Enc Sync, MI = 8E 30 5D 4F 91 09 1E 68 00
U: PEER-ID ( IDENTITY) M: 2025-06-06 19:28:15.600 (RF) P25, LDU1 (Logical Link Data Unit 1), audio, mfId = $00 srcId = 3820, dstId = 38001, group = 1, emerg = 0, encrypt = 1, prio = 4, errs = 3/1233 (0.2%)
U: PEER-ID ( IDENTITY) M: 2025-06-06 19:28:15.779 (RF) P25, LDU2 (Logical Link Data Unit 2), audio, algo = $84, kid = $0003, errs = 4/1233 (0.3%)
U: PEER-ID ( IDENTITY) M: 2025-06-06 19:28:15.779 (RF) P25, LDU2 (Logical Link Data Unit 2), Enc Sync, MI = E0 79 45 C2 8B A2 AC 2D 00
U: PEER-ID ( IDENTITY) M: 2025-06-06 19:28:15.958 (RF) P25, LDU1 (Logical Link Data Unit 1), audio, mfId = $00 srcId = 3820, dstId = 38001, group = 1, emerg = 0, encrypt = 1, prio = 4, errs = 5/1233 (0.4%)
U: PEER-ID ( IDENTITY) M: 2025-06-06 19:28:16.137 (RF) P25, LDU2 (Logical Link Data Unit 2), audio, algo = $84, kid = $0003, errs = 8/1233 (0.6%)
U: PEER-ID ( IDENTITY) M: 2025-06-06 19:28:16.138 (RF) P25, LDU2 (Logical Link Data Unit 2), Enc Sync, MI = 50 B7 D2 37 12 4B E3 7A 00
M: (NET) P25, Call End, peer = 9039148, srcId = 3820, dstId = 38001, duration = 2, streamId = 746414736, external = 0
U: PEER-ID ( IDENTITY) M: 2025-06-06 19:28:16.143 (RF) P25, TDU (Simple Terminator Data Unit), total frames: 16, bits: 19729, undecodable LC: 0, errors: 49, BER: 0.2484%
U: PEER-ID ( IDENTITY) M: 2025-06-06 19:28:16.151 (RF) P25, TDULC (Terminator Data Unit with Link Control), CALL_TERM (Call Termination), srcId = 3820, dstId = 38001