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发表于 2009-8-1 15:11:28
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 本帖最后由 tianchunyu 于 2009-8-1 15:13 编辑  
 
10.7.7.3 ?10.7.7.2? 你这是个什么样的网络?广播网络? 
执行策略路由的路由器配置如下: 
R1#sh ip int b 
Interface                  IP-Address      OK? Method Status                Protocol 
FastEthernet0/0            unassigned      YES unset  administratively down down     
Serial1/0                  10.6.6.1        YES manual up                    up       
Serial1/1                  10.7.7.1        YES manual up                    up       
Serial1/2                  unassigned      YES unset  administratively down down     
Serial1/3                  unassigned      YES unset  administratively down down     
Serial1/4                  unassigned      YES unset  administratively down down     
Serial1/5                  unassigned      YES unset  administratively down down     
Serial1/6                  unassigned      YES unset  administratively down down     
Serial1/7                  unassigned      YES unset  administratively down down     
FastEthernet2/0            192.168.1.254   YES manual up                    up       
FastEthernet2/1            unassigned      YES unset  administratively down down     
 
R1#sh access-list 1 
Standard IP access list 1 
    10 permit 192.168.1.0, wildcard bits 0.0.0.255 (78 matches) 
 
R1#sh route-map A 
STATIC routemaps 
route-map 1, permit, sequence 10 
  Match clauses: 
  Set clauses: 
  Policy routing matches: 0 packets, 0 bytes 
route-map A, permit, sequence 10 
  Match clauses: 
    ip address (access-lists): 1  
  Set clauses: 
    ip next-hop 10.6.6.2 10.7.7.2 
  Policy routing matches: 21 packets, 2070 bytes 
DYNAMIC routemaps 
Current active dynamic routemaps = 0 
 
R1#sh run int f2/0 
Building configuration... 
 
Current configuration : 121 bytes 
! 
interface FastEthernet2/0 
ip address 192.168.1.254 255.255.255.0 
ip policy route-map A 
duplex full 
speed auto 
end 
 
R1#sh ip route 
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 
 
     10.0.0.0/24 is subnetted, 2 subnets 
C       10.7.7.0 is directly connected, Serial1/1 
C       10.6.6.0 is directly connected, Serial1/0 
C    192.168.1.0/24 is directly connected, FastEthernet2/0 
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
策略验证: 
PC#traceroute 10.6.6.2  
 
Type escape sequence to abort. 
Tracing the route to 10.6.6.2 
 
  1 192.168.1.254 252 msec 152 msec 48 msec 
  2 10.6.6.2 252 msec *  204 msec 
PC#traceroute 10.7.7.2 
 
Type escape sequence to abort. 
Tracing the route to 10.7.7.2 
 
  1 192.168.1.254 208 msec 232 msec 60 msec 
  2 10.6.6.2 188 msec 96 msec 96 msec 
  3 10.6.6.1 140 msec 100 msec 204 msec 
  4 10.7.7.2 300 msec *  364 msec 
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
手工关闭R1的s1/0--ip add :10.6.6.1 和关闭对端的效果是一致的 
R1#sh ip  
*Aug  1 15:08:44.355: %LINEPROTO-5-UPDOWN: Line protocol on Interface Serial1/0, changed state to down 
R1#sh ip route 
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 
 
     10.0.0.0/24 is subnetted, 1 subnets 
C       10.7.7.0 is directly connected, Serial1/1 
C    192.168.1.0/24 is directly connected, FastEthernet2/0 
 
再次验证策略: 
PC#traceroute 10.6.6.2 
 
Type escape sequence to abort. 
Tracing the route to 10.6.6.2 
 
  1 192.168.1.254 244 msec 84 msec 64 msec 
  2 10.7.7.2 148 msec 212 msec 76 msec 
  3 10.7.7.1 192 msec 256 msec 96 msec 
  4 10.7.7.1 !H  *  !H  
PC#ping 10.6.6.2 
 
Type escape sequence to abort. 
Sending 5, 100-byte ICMP Echos to 10.6.6.2, timeout is 2 seconds: 
U.U.U 
Success rate is 0 percent (0/5) 
PC#traceroute 10.7.7.2 
 
Type escape sequence to abort. 
Tracing the route to 10.7.7.2 
 
  1 192.168.1.254 284 msec 140 msec 52 msec 
  2 10.7.7.2 184 msec *  168 msec |   
 
 
 
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