servidor DHCP no Debian 10

Bom dia, estou tentando usar um netbook antigo com Debian 10, como roteador wifi.
Além do wifi e da porta FastEthernet, tenho uma GigaEthernet-USB que quero usar na rede interna.
Um dos problemas que estou enfrentando no momento é o servidor ISC-DHCP-SERVER, não que iniciar. Dá erro.
Eu tenho um link da vivo fibra.

modem fibra <-> roteador d-link vivo <-> roteador próprio tp-link

Eu quero instalar o netbook entre o roteador vivo e o meu.

Alguém pode me ajudar?



Arquivo dhcpd.conf:

ddns-update-style none;
deny unknown-clients;
log-facility local7;
authoritative;

subnet 192.168.30.0 netmask 255.255.255.0 {
range 192.168.30.110 192.168.30.130;
server-identifier servidorDHCP;
option subnet-mask 255.255.255.0;
option domain-name "kmmx.kmx";
option domain-name-servers 192.168.1.1, 8.8.8.8, 8.8.4.4;
# A lan do roteador vivo é 192.168.1.0/24, a FastEthernet 192.168.30.10/24
option routers 192.168.1.12;
option broadcast-address 192.168.30.255;
default-lease-time 600;
max-lease-time 7200;

host KmmX-DELL {
hardware ethernet B8:CA:3A:xx:xx:xx;
fixed-address 192.168.30.xx
}

host Cxx {
hardware ethernet F4:F5:D8:xx:xx:xx;
fixed-address 192.168.30.xx
}

linha 137 (erro) host Zxx {
hardware ethernet 38:D5:47:xx:xx:xx;
fixed-address 192.168.30.xx
}

linha 142 (erro) host Mxx {
hardware ethernet 20:A6:0C:xx:xx:xx;
fixed-address 192.168.30.xx
}

host Txx {
hardware ethernet 00:00:48:xx:xx:xx;
fixed-address 192.168.30.xx
}
linha 151 (erro) }



Arquivo interfaces:

# This file describes the network interfaces available on your system
# and how to activate them. For more information, see interfaces(5).

source /etc/network/interfaces.d/*

# The loopback network interface
auto lo
iface lo inet loopback

# The primary network interface
allow-hotplug enp9s0
iface enp9s0 inet dhcp

#auto enp9s0
# iface eth0 inet static
# address 192.168.1.12
# netmask 255.255.255.0
# gateway 192.168.1.1

#auto enx0000ba300849
# iface eth1 inet static
# address 192168.30.100
# netmask 255.255.255.0
# gateway 192.168.30.100



Arquivo /etc/default/isc-dhcp-server:

# Defaults for isc-dhcp-server (sourced by /etc/init.d/isc-dhcp-server)

# Path to dhcpd's config file (default: /etc/dhcp/dhcpd.conf).
DHCPDv4_CONF=/etc/dhcp/dhcpd.conf
#DHCPDv6_CONF=/etc/dhcp/dhcpd6.conf

# Path to dhcpd's PID file (default: /var/run/dhcpd.pid).
DHCPDv4_PID=/var/run/dhcpd.pid
#DHCPDv6_PID=/var/run/dhcpd6.pid

# Additional options to start dhcpd with.
# Don't use options -cf or -pf here; use DHCPD_CONF/ DHCPD_PID instead
#OPTIONS=""

# On what interfaces should the DHCP server (dhcpd) serve DHCP requests?
# Separate multiple interfaces with spaces, e.g. "eth0 eth1".
INTERFACESv4="enx0000ba300849 wlxf87b8c178de3"
#INTERFACESv6=""



Erro do ISC-DHCP:

root@KmmX-NET:~# service isc-dhcp-server stop
root@KmmX-NET:~# service isc-dhcp-server start
Job for isc-dhcp-server.service failed because the control process exited with error code.
See "systemctl status isc-dhcp-server.service" and "journalctl -xe" for details.
root@KmmX-NET:~# systemctl status isc-dhcp-server.service
&#9679; isc-dhcp-server.service - LSB: DHCP server
Loaded: loaded (/etc/init.d/isc-dhcp-server; generated)
Active: failed (Result: exit-code) since Fri 2020-06-19 07:17:49 -03; 15s ago
Docs: man:systemd-sysv-generator(8)
Process: 542 ExecStart=/etc/init.d/isc-dhcp-server start (code=exited, status=1/FAILURE)

jun 19 07:17:49 KmmX-NET dhcpd[549]: ^
jun 19 07:17:49 KmmX-NET dhcpd[549]: Configuration file errors encountered -- exiting
jun 19 07:17:49 KmmX-NET dhcpd[549]:
jun 19 07:17:49 KmmX-NET dhcpd[549]: If you think you have received this message due to a bug rather
jun 19 07:17:49 KmmX-NET dhcpd[549]: than a configuration issue please read the section on submitting
jun 19 07:17:49 KmmX-NET dhcpd[549]: bugs on either our web page at www.isc.org or in the README file
jun 19 07:17:49 KmmX-NET dhcpd[549]: before submitting a bug. These pages explain the proper
jun 19 07:17:49 KmmX-NET dhcpd[549]: process and the information we find helpful for debugging.
jun 19 07:17:49 KmmX-NET dhcpd[549]:
jun 19 07:17:49 KmmX-NET dhcpd[549]: exiting.
root@KmmX-NET:~# journalctl -xe
jun 19 07:17:49 KmmX-NET isc-dhcp-server[542]: ^
jun 19 07:17:49 KmmX-NET isc-dhcp-server[542]: Configuration file errors encountered -- exiting
jun 19 07:17:49 KmmX-NET isc-dhcp-server[542]: If you think you have received this message due to a bug rather
jun 19 07:17:49 KmmX-NET isc-dhcp-server[542]: than a configuration issue please read the section on submitting
jun 19 07:17:49 KmmX-NET isc-dhcp-server[542]: bugs on either our web page at www.isc.org or in the README file
jun 19 07:17:49 KmmX-NET isc-dhcp-server[542]: before submitting a bug. These pages explain the proper
jun 19 07:17:49 KmmX-NET isc-dhcp-server[542]: process and the information we find helpful for debugging.
jun 19 07:17:49 KmmX-NET isc-dhcp-server[542]: exiting.
jun 19 07:17:49 KmmX-NET dhcpd[549]: ^
jun 19 07:17:49 KmmX-NET systemd[1]: isc-dhcp-server.service: Control process exited, code=exited, status=1/FAILURE
-- Subject: Unit process exited
-- Defined-By: systemd
-- Support: https://www.debian.org/support
--
-- An ExecStart= process belonging to unit isc-dhcp-server.service has exited.
--
-- The process' exit code is 'exited' and its exit status is 1.
jun 19 07:17:49 KmmX-NET dhcpd[549]: /etc/dhcp/dhcpd.conf line 137: host declarations not allowed here.
jun 19 07:17:49 KmmX-NET systemd[1]: isc-dhcp-server.service: Failed with result 'exit-code'.
-- Subject: Unit failed
-- Defined-By: systemd
-- Support: https://www.debian.org/support
--
-- The unit isc-dhcp-server.service has entered the 'failed' state with result 'exit-code'.
jun 19 07:17:49 KmmX-NET dhcpd[549]: host
jun 19 07:17:49 KmmX-NET systemd[1]: Failed to start LSB: DHCP server.
-- Subject: A unidade isc-dhcp-server.service falhou
-- Defined-By: systemd
-- Support: https://www.debian.org/support
--
-- A unidade isc-dhcp-server.service falhou.
--
-- O resultado é failed.
jun 19 07:17:49 KmmX-NET dhcpd[549]: ^
jun 19 07:17:49 KmmX-NET dhcpd[549]: /etc/dhcp/dhcpd.conf line 142: host declarations not allowed here.
jun 19 07:17:49 KmmX-NET dhcpd[549]: host
jun 19 07:17:49 KmmX-NET dhcpd[549]: ^
jun 19 07:17:49 KmmX-NET dhcpd[549]: /etc/dhcp/dhcpd.conf line 147: host declarations not allowed here.
jun 19 07:17:49 KmmX-NET dhcpd[549]: host
jun 19 07:17:49 KmmX-NET dhcpd[549]: ^
jun 19 07:17:49 KmmX-NET dhcpd[549]: /etc/dhcp/dhcpd.conf line 151: unexpected end of file
jun 19 07:17:49 KmmX-NET dhcpd[549]: }
jun 19 07:17:49 KmmX-NET dhcpd[549]: ^
jun 19 07:17:49 KmmX-NET dhcpd[549]: Configuration file errors encountered -- exiting
jun 19 07:17:49 KmmX-NET dhcpd[549]:
jun 19 07:17:49 KmmX-NET dhcpd[549]: If you think you have received this message due to a bug rather
jun 19 07:17:49 KmmX-NET dhcpd[549]: than a configuration issue please read the section on submitting
jun 19 07:17:49 KmmX-NET dhcpd[549]: bugs on either our web page at www.isc.org or in the README file
jun 19 07:17:49 KmmX-NET dhcpd[549]: before submitting a bug. These pages explain the proper
jun 19 07:17:49 KmmX-NET dhcpd[549]: process and the information we find helpful for debugging.
jun 19 07:17:49 KmmX-NET dhcpd[549]:
jun 19 07:17:49 KmmX-NET dhcpd[549]: exiting.



Obrigado pela atenção!

/etc/dhcp/dhcpd.conf line 137: host declarations not allowed here.

Você precisa mover suas declarações de host para outra parte do arquivo, aparentemente é só isso.
Existem as declarações globais, de range, etc, e normalmente declaraçoes de host eu deixo mais para o final.
Agora olhando melhor pro seu arquivo:

subnet 192.168.30.0 netmask 255.255.255.0 {

Você abriu a chave da declaração da subnet, mas não fechou ela com outra chave ...
Normalmente dhcp falha por erro de digitação,mesmo.