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拓扑

配置

IP的基本配置

r2

[R2]int g0/0/0
[R2-GigabitEthernet0/0/0]ip add 12.0.0.2 255.255.255.0
[R2]int g0/0/2
[R2-GigabitEthernet0/0/2]ip add 210.1.1.254 255.255.255.0
[R2-GigabitEthernet0/0/2]int g0/0/1
[R2-GigabitEthernet0/0/1]ip add 200.1.1.254 255.255.255.0

r3

[R3]int g0/0/0
[R3-GigabitEthernet0/0/0]ip add 13.0.0.3 255.255.255.0
[R3]int g0/0/1
[R3-GigabitEthernet0/0/1]ip add 100.1.1.254 255.255.255.0
[R3-GigabitEthernet0/0/1]int g0/0/2
[R3-GigabitEthernet0/0/2]ip add 110.1.1.254 255.255.255.0

防火墙

实服务器

[FW]slb enable --开启负载均衡
[FW]slb
[FW-slb]group 0 dns
[FW-slb-group-0]rserver 0 rip 200.1.1.1 port 53
[FW-slb-group-0]rserver 1 rip 100.1.1.1 port 53---实服务器IP，端口号

虚服务器

[FW-slb]vserver 0 dns
[FW-slb-vserver-0]vip 0 10.10.10.10
[FW-slb-vserver-0]group dns

透明DNS代理

[FW]dns-transparent-policy
[FW-policy-dns]dns transparent-proxy enable
[FW-policy-dns]dns server bind interface GigabitEthernet 1/0/1 preferred 100.1.1.1
[FW-policy-dns]dns server bind interface GigabitEthernet 1/0/2 preferred 200.1.1.1

透明DNS策略

[FW-policy-dns]rule name dns_p
[FW-policy-dns-rule-dns_p]source-address 192.168.1.0 24	
[FW-policy-dns-rule-dns_p]enable 
Info: The policy is enabled successfully. 
[FW-policy-dns-rule-dns_p]action tpdns 

测试