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用户有两个出口,电信和联通,G0/1为电信接口,公网IP为202.101.1.2,公网的网关为202.101.1.1,用户内网有两个IP段,172.16.1.0/24和172.16.2.0/24,现在用户已经配置好两条metric值一样的电信联通默认路由,但是用户希望172.16.1.0/24网段直走电信,只有在电信线路down时,才走其他线路,以下EG的源路由配置正确的是()。

A.ip access-list standard 1010permit 172.16.1.00.0.0.255route-map ruijie permit 10match ip address 10set next-hop 202.101.1.1
B.ip access-list standard 1010permit 172.16.1.00.0.0.255route-map ruijie permit 10match ip address 10set ip default next-hop 202.101.1.1
C.ip access-list standard 1010permit 172.16.1.00.0.0.255route-map ruijie permit 10match ip address 10set ip next-hop 202.101.1.1
D.ip access-list standard 1010permit 172.16.1.00.0.0.255route-map ruijie permit 10match ip address 10set metric 20

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