A.数据包走向
====================================
1.Client---------->GW
sip:CIP dip:VIP
smac:Client_mac dmac:GW_up_mac
2.GW-------------->Director
sip:CIP dip:VIP
smac:GW_down_mac dmac:VIP_mac
3.Director-------->Real Server
******************************************************************
*Director在给Real Server发包前要广播找Real Server mac *
*sip:DIP sip:RIP *
*smac:DIP_mac dmac:broadcast *
* *
*sip:RIP dip:DIP *
*smac:RealServer_macdmac:DIP_mac *
******************************************************************
sip:CIP dip:VIP
smac:DIP_mac dmac:RealServer_mac
4.Real Server----->GW
sip:VIP dip:CIP
smac:RealServer_mac dmac:GW_down_mac
5.GW-------------->Client
sip:VIP dip:CIP
smac:GW_up_mac dmac:Client_mac
B.配置LVS DR模式
=================================
Client:
[root@localhost ~]# route add default gw 192.168.1.254 dev eth0
GW:
[root@localhost ~]# echo 1 > /proc/sys/net/ipv4/ip_forward
Real Server A & Real Server B:
[root@localhost ~]# yum install httpd
[root@localhost ~]# ifconfig lo:1 1.1.1.1/32
[root@localhost ~]# echo 1 > /proc/sys/net/ipv4/conf/eth0/arp_ignore
[root@localhost ~]# echo 2 > /proc/sys/net/ipv4/conf/eth0/arp_announce
Director:
[root@localhost ~]# yum install ipvsadm
[root@localhost ~]# ipvsadm -A -t 1.1.1.1:80 -s rr
[root@localhost ~]# ipvsadm -a -t 1.1.1.1:80 -r 1.1.1.10:80 -g
[root@localhost ~]# ipvsadm -a -t 1.1.1.1:80 -r 1.1.1.20:80 -g
[root@localhost ~]# ipvsadm -Ln
[root@localhost ~]# ipvsadm -Ln --stats
