e Redes
e Redes
e Redes
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Exemplo 2: Utilizando ifconfig para descobrir o MAC Address<br />
01 renner@lyra:~$ /sbin/ ifconfig eth0<br />
02 eth0 Link encap:Ethernet HWaddr 00:02:2D:34:90:85<br />
03 inet addr:10.32.130.79 Bcast:10.32.135.255<br />
➥ Mask:255.255.248.0<br />
04 UP BROADCAST NOTRAILERS RUNNING MULTICAST<br />
➥ MTU:1500 Metric:1<br />
05 RX packets:15695 errors:0 dropped:0 overruns:0<br />
➥ frame:0<br />
06 TX packets:10988 errors:204 dropped:0 overruns:0<br />
➥ carrier:0<br />
07 collisions:0 txqueuelen:100<br />
08 RX bytes:5201433 (4.9 MiB) TX bytes:1559490 (1.4<br />
➥ MiB)<br />
09 Interrupt:10 Base address:0x100<br />
Administração de <strong>Redes</strong><br />
ser aconselhável manter uma tabela com os endereços fornecidos<br />
pelos fabricantes das placas de rede.<br />
Exemplo 3: Como descobrir o MAC Address com arp e ping<br />
01 renner@lyra:~$ ping -c3 192.168.2.0<br />
02 PING 192.168.2.0 (192.168.2.0): 56 data bytes<br />
03 64 bytes from 192.168.2.1: icmp_seq=0 ttl=64 time=0.2 ms<br />
04 64 bytes from 192.168.2.52: icmp_seq=0 ttl=64 time=3.5 ms<br />
➥(DUP!)<br />
05 64 bytes from 192.168.2.53: icmp_seq=0 ttl=64 time=4.2 ms<br />
➥(DUP!)<br />
06 64 bytes from 192.168.2.62: icmp_seq=0 ttl=64 time=4.7 ms<br />
➥(DUP!)<br />
07 [...]<br />
08 renner@lyra:~$ /usr/sbin/arp -a<br />
09 ? (192.168.2.1) at 00:03:E3:00:18:F1 [ether] on eth0<br />
10 ? (192.168.2.52) at 00:30:05:55:02:ED [ether] on eth0<br />
11 ? (192.168.2.53) at 00:0C:6E:1F:32:C4 [ether] on eth0<br />
12 ? (192.168.2.62) at 00:30:05:55:03:7F [ether] on eth0<br />
Após descobrir o endereço de hardware (MAC), você pode adicionar<br />
uma entrada de mapeamento estático de endereço IP na<br />
configuração do dhcpd:<br />
host lyraA {<br />
hardware ethernet U
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