爲了節約公網地址,DR模型下VIP可用公網地址,RIP用內網地址,將網關都指向同一個路由器,以此來實現DR模型的LVS負載均衡
實驗拓補圖如下:
(1)模擬環境
192.168.1.X模擬爲外網; 172.16.0.X模擬爲內網
Client(Gateway):
eth0:192.168.1.15(Host-Only)
eth1:172.16.0.13(Host-Only)
Director:
VIP:192.168.1.10(eth0:0)
Gateway:172.16.0.13
DIP:172.16.0.8(eth0,Host-Only)
RS1:
RIP:172.16.0.11(eth0,Host-Only)
Gateway:172.16.0.13
VIP:192.168.1.10(lo:0)
搭建web服務:
# echo “RS1.ikki.com” > /var/www/html/index.html # curl http://172.16.0.11/index.html
RS2:
RIP:172.16.0.12(eth0,Host-Only)
Gateway:172.16.0.13
VIP:192.168.1.10(lo:0)
搭建web服務:
# echo “RS2.ikki.com” > /var/www/html/index.html # curl http://172.16.0.12/index.html
(2)配置RS1和RS2
# echo 1 > /proc/sys/net/ipv4/conf/all/arp_ignore # echo 1 > /proc/sys/net/ipv4/conf/eth0/arp_ignore # echo 2 > /proc/sys/net/ipv4/conf/all/arp_announce # echo 2 > /proc/sys/net/ipv4/conf/eth0/arp_announce # ifconfig lo:0 192.168.1.10 netmask 255.255.255.255 broadcast 192.168.1.10 # route add -host 192.168.1.10 dev lo:0
(3)配置ipvs服務
Director:
# ifconfig eth0:0 192.168.1.10 netmask 255.255.255.0 up # echo 1 > /proc/sys/net/ipv4/ip_forward # ipvsadm -C # ipvsadm -A -t 192.168.1.10:80 -s rr # ipvsadm -a -t 192.168.1.10:80 -r 192.168.1.11 -g # ipvsadm -a -t 192.168.1.10:80 -r 192.168.1.12 -g
(4)測試
Client:測試訪問:
# curl http://192.168.1.10/index.html
Director:查看負載狀態:
# ipvsadm -L -n IP Virtual Server version 1.2.1 (size=4096) Prot LocalAddress:Port Scheduler Flags -> RemoteAddress:Port Forward Weight ActiveConn InActConn TCP 192.168.1.10:80 rr -> 172.16.0.12:80 Route 1 0 4 -> 172.16.0.11:80 Route 1 0 5