dhcp não está funcionando

Question

Estou usando o 14.04 e instalei o isc-dhcp-server no meu Ubuntu. aqui está minha configuração do dhcp.

INTERFACES="eth0"

allow booting;
allow bootp;

subnet 192.168.1.0 netmask 255.255.255.0 {
    range dynamic-bootp 192.168.1.10 192.168.1.200;
    option broadcast-address 192.168.1.255;
    option routers 192.168.1.1;
    option subnet-mask 255.255.255.0;
    filename "/var/lib/tftpboot/pxelinux.0";
}

quando eu verifico isso

ashokkrishna@ashokkrishna-Lenovo-B560:~$ dhcpd -t /etc/dhcp/dhcpd.conf
/etc/dhcp/dhcpd.conf: interface name too long (is 20)

e eu tentei inicializar no pxe no sistema remoto eu falhei. como resolver isso.

PXE-E51: No DHCP or proxyDHCP offers were received.

PXE-M0F: Exiting Broadcom ROM.

/ etc / network / interfaces.

auto lo
iface lo inet loopback

auto eth0
iface eth0 inet static
  address 192.168.1.9
  gateway 192.168.1.1
  netmask 255.255.255.0

auto br0
iface br0 inet static
        address 192.168.1.101
        netmask 255.255.255.0
        network 192.168.1.0
        broadcast 192.168.1.255
        gateway 192.168.1.1
        bridge_ports eth0
        bridge_stp off
        bridge_maxwait 5

ifconfig

br0       Link encap:Ethernet  HWaddr f0:de:f1:a4:ec:87  
          inet addr:192.168.1.101  Bcast:192.168.1.255  Mask:255.255.255.0
          UP BROADCAST MULTICAST  MTU:1500  Metric:1
          RX packets:0 errors:0 dropped:0 overruns:0 frame:0
          TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0 
          RX bytes:0 (0.0 B)  TX bytes:0 (0.0 B)

eth0      Link encap:Ethernet  HWaddr f0:de:f1:a4:ec:87  
          UP BROADCAST MULTICAST  MTU:1500  Metric:1
          RX packets:0 errors:0 dropped:0 overruns:0 frame:0
          TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000 
          RX bytes:0 (0.0 B)  TX bytes:0 (0.0 B)

lo        Link encap:Local Loopback  
          inet addr:127.0.0.1  Mask:255.0.0.0
          inet6 addr: ::1/128 Scope:Host
          UP LOOPBACK RUNNING  MTU:65536  Metric:1
          RX packets:3929 errors:0 dropped:0 overruns:0 frame:0
          TX packets:3929 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0 
          RX bytes:380900 (380.9 KB)  TX bytes:380900 (380.9 KB)

wlan0     Link encap:Ethernet  HWaddr 74:de:2b:e2:94:c6  
          inet addr:192.168.43.9  Bcast:192.168.43.255  Mask:255.255.255.0
          inet6 addr: fe80::76de:2bff:fee2:94c6/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:10941 errors:0 dropped:0 overruns:0 frame:0
          TX packets:13954 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000 
          RX bytes:3537434 (3.5 MB)  TX bytes:1880208 (1.8 MB)

    

Answer 1

Tente isso

# Sample /etc/dhcpd.conf


default-lease-time 600;
max-lease-time 7200;
option subnet-mask 255.255.255.0;
option broadcast-address 192.168.1.255;
option routers 192.168.1.254;
option domain-name-servers 192.168.1.1, 192.168.1.2;
option domain-name "***********";
option ntp-servers 192.168.1.254;

subnet 192.168.1.0 netmask 255.255.255.0 {
  range 192.168.1.10 192.168.1.100;
  range 192.168.1.110 192.168.1.200;
} 

    

Answer 2

Se o servidor DHCP exibir um erro e reiniciar após o lançamento da rede, abra o arquivo interfaces usando seu editor de texto preferido:

sudo nano /etc/network/interfaces

Em seguida, insira as seguintes linhas ao seu gosto:

iface eth0 inet static
    address 192.168.1.*
    network 192.168.1.**
    netmask 255.255.255 
    broadcast 192.168.1.255
    up service isc-dhcp-server restart
    auto eth0

Agora reinicie seu sistema com:

sudo reboot

Seu servidor DHCP agora deve estar funcionando. Para testar se o DHCP está funcionando, execute o comando dhclient .