驗證使用出站接口配置的靜態路由管理距離

CCNP官方教材強調是0，實際上無論使用出站接口配置或使用下一跳地址配置的由管理距離都為1.實驗如下：

R1(config)#ip route 1.0.0.0 255.0.0.0 serial 0/0 
R1(config)#do sh ip rou 1.0.0.0

Routing entry for 2.22.0.0/16
  Known via "static", distance 1, metric 0 (connected)
  Routing Descriptor Blocks:
  * 1.1.1.2
      Route metric is 0, traffic share count is 1
    directly connected, via Serial0/0
      Route metric is 0, traffic share count is 1

R2(config)#ip route 2.0.0.0 255.0.0.0 serial 0/0 

R2(config)#ip route 2.0.0.0 255.0.0.0 1.1.1.2

R2(config)#do sh ip rou

Codes: C - connected, S - static, R - RIP, M - mobile, B - BGP
       D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area
       N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2
       E1 - OSPF external type 1, E2 - OSPF external type 2
       i - IS-IS, su - IS-IS summary, L1 - IS-IS level-1, L2 - IS-IS level-2
       ia - IS-IS inter area, * - candidate default, U - per-user static route
       o - ODR, P - periodic downloaded static route

Gateway of last resort is not set

C    1.0.0.0/8 is directly connected, Serial0/0
     2.0.0.0/8 is variably subnetted, 2 subnets, 2 masks
S       2.0.0.0/8 [1/0] via 1.1.1.2
                  is directly connected, Serial0/0

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