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发表于 2012-05-25 13:05 |只看该作者 |倒序浏览

本帖最后由 adams_leo 于 2012-05-25 13:44 编辑

1. 问题的描述：
有多个DOS平台的客户端，首先从PXE的方式启动机器，然后在通过DOS下面的问题MS CLIENT 3.0来获取IP地址和相关资源，在运行TCPTSR.EXE的时候获取IP地址失败。

服务器的使用的是Centos5.6 64位版本，DHCP的版本升级到了
dhcp-3.0.5-31.el5
dhcp-devel-3.0.5-31.el51

dhcpd的log的相关记录。

May 22 15:18:42 L1Linux102 dhcpd: DHCPDISCOVER from c8:9c:dc:f6:dd:85 via eth0
May 22 15:18:42 L1Linux102 dhcpd: DHCPOFFER on 136.170.1.132 to c8:9c:dc:f6:dd:85 via eth0
May 22 15:18:43 L1Linux102 dhcpd: DHCPDISCOVER from c8:9c:dc:f6:82:96 via eth0
May 22 15:18:43 L1Linux102 dhcpd: DHCPOFFER on 136.170.1.133 to c8:9c:dc:f6:82:96 via eth0
May 22 15:18:43 L1Linux102 dhcpd: DHCPREQUEST for 0.0.0.0 from c8:9c:dc:f8:96:2e via eth1: unknown lease 0.0.0.0.
May 22 15:18:43 L1Linux102 dhcpd: DHCPREQUEST for 0.0.0.0 from c8:9c:dc:f6:80:cc via eth1: unknown lease 0.0.0.0.
May 22 15:18:44 L1Linux102 dhcpd: DHCPREQUEST for 0.0.0.0 from c8:9c:dc:f6:db:53 via eth0: unknown lease 0.0.0.0.
May 22 15:18:44 L1Linux102 dhcpd: DHCPREQUEST for 0.0.0.0 from c8:9c:dc:f8:97:43 via eth0: unknown lease 0.0.0.0.
May 22 15:18:44 L1Linux102 dhcpd: DHCPDISCOVER from c8:9c:dc:f6:dd:f4 via eth1
May 22 15:18:44 L1Linux102 dhcpd: DHCPOFFER on 136.170.2.97 to c8:9c:dc:f6:dd:f4 via eth1
May 22 15:18:44 L1Linux102 dhcpd: DHCPREQUEST for 136.170.2.97 (136.170.2.1) from c8:9c:dc:f6:dd:f4 via eth1
May 22 15:18:44 L1Linux102 dhcpd: DHCPACK on 136.170.2.97 to c8:9c:dc:f6:dd:f4 via eth1
May 22 15:18:44 L1Linux102 dhcpd: DHCPREQUEST for 136.170.2.97 (136.170.2.1) from c8:9c:dc:f6:dc:b7 via eth1: lease 136.170.2.97 unavailable.
May 22 15:18:44 L1Linux102 dhcpd: DHCPNAK on 136.170.2.97 to c8:9c:dc:f6:dc:b7 via eth1
May 22 15:18:44 L1Linux102 dhcpd: DHCPREQUEST for 0.0.0.0 from c8:9c:dc:f6:dd:f4 via eth1: unknown lease 0.0.0.0.
May 22 15:18:44 L1Linux102 dhcpd: DHCPREQUEST for 0.0.0.0 from c8:9c:dc:f6:dc:b7 via eth1: unknown lease 0.0.0.0.
May 22 15:18:45 L1Linux102 dhcpd: DHCPREQUEST for 0.0.0.0 from c8:9c:dc:f8:96:d0 via eth1: unknown lease 0.0.0.0.
May 22 15:18:45 L1Linux102 dhcpd: DHCPREQUEST for 0.0.0.0 from c8:9c:dc:f8:97:50 via eth1: unknown lease 0.0.0.0.

2. 服务器DHCPD.CONF文件的配置如下：

# dhcpd.conf
#
default-lease-time 600;
max-lease-time 1000;

# If this DHCP server is the official DHCP server for the local
# network, the authoritative directive should be uncommented.
authoritative;

allow booting;
allow bootp;
ddns-update-style none;
ignore client-updates;

# Standard configuration directives...
option subnet-mask 255.255.255.0;

class "pxe-clients" {
match if substring (option vendor-class-identifier,
                                             0, 20) = "PXEClient:Arch:00000";
      if    substring (hardware, 1, 4) = 11:22:33:55 {
         filename "BOOT.2";
      } elsif substring (hardware, 1, 4) = 00:0d:55:55 {
         filename "BOOT.2";
      } else {
         filename "pxelinux.311";
         # filename "pxelinux.206";


class "ANY-client" {
}

subnet 136.170.1.0 netmask 255.255.255.0 {
  pool {
   next-server 136.170.1.2;
   option routers 136.170.1.2;
   range 136.170.1.10 136.170.1.254;
   allow all clients;
}
}
subnet 136.170.2.0 netmask 255.255.255.0 {
  pool {
   next-server 136.170.2.1;
   option routers 136.170.2.1;
   range 136.170.2.10 136.170.2.254;
   allow all clients;
}
}
subnet 136.169.0.0 netmask 255.255.0.0 {
}

请大家帮忙分析下，看看配置文件是否有设置的不妥当，非常感谢你的任何的建议。

从log来看，有点比较奇怪的是为啥 c8:9c:dc:f6:dc:b7 这个MAC地址没有DISCOVER和OFFOR的信息而直接发送RQUEST了？这点有点不能明白