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发表于 2013-11-01 12:25 |只看该作者 |倒序浏览

DHCP server搭好了，也能正常工作，见如下/var/log/messages内容：

Nov  1 12:00:32 RHEL6 dhcpd: Listening on LPF/eth0/00:0c:29:7b:54:61/192.168.2.0/24
Nov  1 12:00:32 RHEL6 dhcpd: Sending on LPF/eth0/00:0c:29:7b:54:61/192.168.2.0/24
Nov  1 12:00:32 RHEL6 dhcpd: Sending on Socket/fallback/fallback-net
Nov  1 12:00:50 RHEL6 dhcpd: DHCPDISCOVER from 02:00:4c:4f:4f:50 via eth0
Nov  1 12:00:51 RHEL6 dhcpd: DHCPOFFER on 192.168.2.11 to 02:00:4c:4f:4f:50 via eth0
Nov  1 12:00:51 RHEL6 dhcpd: DHCPREQUEST for 192.168.2.11 (192.168.2.2) from 02:00:4c:4f:4f:50 via eth0
Nov  1 12:00:51 RHEL6 dhcpd: DHCPACK on 192.168.2.11 to 02:00:4c:4f:4f:50 via eth0

但是如果service dhcpd restart就不行了，老是报如下错误：
No subnet declaration for start (no IPv4 addresses).
** Ignoring requests on start.  If this is not what
you want, please write a subnet declaration
in your dhcpd.conf file for the network segment
to which interface start is attached. **

虽然不影响使用，但是还是不放心。重新配置所有参数然后/usr/sbin/dhcpd start也一样。哪个兄弟碰到过这种情况？
[root@RHEL6 ~]# ifconfig -a
eth0    Link encap:Ethernet  HWaddr 00:0C:29:7B:54:61
      inet addr:192.168.2.2  Bcast:192.168.2.255  Mask:255.255.255.0
      inet6 addr: fe80::20c:29ff:fe7b:5461/64 Scope:Link
      UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
      RX packets:528 errors:0 dropped:0 overruns:0 frame:0
      TX packets:205 errors:0 dropped:0 overruns:0 carrier:0
      collisions:0 txqueuelen:1000
      RX bytes:45285 (44.2 KiB)  TX bytes:96202 (93.9 KiB)

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:16436  Metric:1
      RX packets:12 errors:0 dropped:0 overruns:0 frame:0
      TX packets:12 errors:0 dropped:0 overruns:0 carrier:0
      collisions:0 txqueuelen:0
      RX bytes:720 (720.0 b)  TX bytes:720 (720.0 b)

pan0    Link encap:Ethernet  HWaddr AE:F4:B8:4D:99:58
      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)

virbr0 Link encap:Ethernet  HWaddr 52:54:00:FC:20:44
      inet addr:192.168.122.1  Bcast:192.168.122.255  Mask:255.255.255.0
      UP BROADCAST RUNNING 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)

virbr0-nic Link encap:Ethernet  HWaddr 52:54:00:FC:20:44
      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:500
      RX bytes:0 (0.0 b)  TX bytes:0 (0.0 b)

[root@RHEL6 ~]# more /etc/sysconfig/dhcpd
# Command line options here
DHCPDARGS="eth0";
[root@RHEL6 ~]#
[root@RHEL6 ~]# more /etc/dhcp/dhcpd.conf
subnet 192.168.2.0 netmask 255.255.255.0{
      option subnet-mask 255.255.255.0;
      option routers 192.168.2.1;
      range 192.168.2.11 192.168.2.22;
}
[root@RHEL6 ~]#