CentOS上实现PPPOE接入

CentOS release 5 (Final) 默认的安装包是ppp-2.4.4 和rp-pppoe-3.5-32.1，配置可以拨号，但是无法通过验证，最终发现是ppp版本兼容性问题，下载ppp-2.4.1-6plf后，强制降级，拨号成功。

配置文件/etc/ppp/options

local
require-pap
login
auth
defaultroute
ipcp-accept-local
ipcp-accept-remote
10.0.0.1:10.0.0.255
netmask 255.255.255.0
ms-dns 192.168.1.144

/etc/ppp/pap-secrets

# client        server secret                  IP addresses
*       *       ""      *

/etc/ppp/pppoe-server-options

logfile /var/log/pppd.log

echo "/sbin/pppoe-server -I eth2.3 -I eth2.101 -I eth2.8" >>/etc/rc.local 启动pppoe-server

附DHCP配置（可用于pppoe动态分配ip）

/etc/dhcpd.conf

option netbios-name-servers 192.168.1.144;
option netbios-node-type 8;
option domain-name-servers 192.168.1.144;
ddns-update-style interim;
ignore client-updates;

# 2

#subnet 172.16.3.0 netmask 255.255.255.0 {
#       option routers 172.16.3.1;
#       range 172.16.3.11 172.16.3.50;
#       }
subnet 172.16.4.0 netmask 255.255.255.0 {
        option routers 172.16.4.1;
        range 172.16.4.11 172.16.4.50;
        }
subnet 172.16.5.0 netmask 255.255.255.0 {
        option routers 172.16.5.1;
        range 172.16.5.11 172.16.5.50;
        }
subnet 172.16.6.0 netmask 255.255.255.0 {
        option routers 172.16.6.1;
        range 172.16.6.11 172.16.6.50;
        }
subnet 172.16.7.0 netmask 255.255.255.0 {
        option routers 172.16.7.1;
        range 172.16.7.11 172.16.7.50;
        }
subnet 172.16.8.0 netmask 255.255.255.0 {
        option routers 172.16.8.1;
        range 172.16.8.11 172.16.8.50;
        }
subnet 172.16.131.0 netmask 255.255.255.0 {
        option routers 172.16.131.1;
        range 172.16.131.11 172.16.131.50;
        }