NAT排错

2514#sh run
　　Building configuration...
　　Current configuration:
　　!
　　version 12.0
　　service timestamps debug uptime
　　service timestamps log uptime
　　no service password-encryption
　　!
　　hostname 2514
　　!
　　enable password cisco
　　!
　　ip subnet-zero
　　!
　　!
　　process-max-time 200
　　!
　　interface Ethernet0
　　ip address 203.93.188.51 255.255.255.224
　　no ip directed-broadcast
　　ip nat outside
　　no ip mroute-cache
　　!
　　interface Ethernet1
　　ip address 10.10.10.1 255.255.255.0
　　no ip directed-broadcast
　　ip nat inside
　　no ip mroute-cache
　　!
　　interface Serial0
　　no ip address
　　no ip directed-broadcast
　　no ip mroute-cache
　　shutdown
　　!
　　interface Serial1
　　no ip address
　　no ip directed-broadcast
　　no ip mroute-cache
　　shutdown
　　!
　　ip nat pool test 203.93.188.51 203.93.188.51 netmask 255.255.255.255
　　ip nat inside source list 1 pool test overload
　　ip classless
　　ip route 0.0.0.0 0.0.0.0 Ethernet 0
　　access-list 1 permit 10.10.10.0 0.0.0.255
　　!
　　line con 0
　　transport input none
　　line aux 0
　　line vty 0 4
　　password cisco
　　login
　　!
　　end
　　2514#ping
　　Protocol [ip]:
　　Target IP address: 203.93.188.51
　　Repeat count [5]:
　　Datagram size [100]:
　　Timeout in seconds [2]:
　　Extended commands [n]: y
　　Source address or interface: 10.10.10.10
　　Type of service [0]:
　　Set DF bit in IP header? [no]:
　　Validate reply data? [no]:
　　Data pattern [0xABCD]:
　　Loose, Strict, Record, Timestamp, Verbose[none]:
　　Sweep range of sizes [n]:
　　Type escape sequence to abort.
　　Sending 5, 100-byte ICMP Echos to 203.93.188.51, timeout is 2 seconds:
　　00:20:06: NAT: o: icmp (10.10.10.1, 3472) -> (203.93.188.51, 3472) [5]
　　00:20:06: NAT: i: icmp (10.10.10.1, 3472) -> (203.93.188.51, 3472) [5]
　　00:20:06: NAT: address not stolen for 10.10.10.1, proto 1 port 3472
　　00:20:06: NAT: failed to allocate address for 10.10.10.1, list/map 1.
　　00:20:08: NAT: o: icmp (10.10.10.1, 3473) -> (203.93.188.51, 3473) [6]
　　00:20:08: NAT: i: icmp (10.10.10.1, 3473) -> (203.93.188.51, 3473) [6]
　　00:20:08: NAT: address not stolen for 10.10.10.1, proto 1 port 3473
　　00:20:08: NAT: failed to allocate address for 10.10.10.1, list/map 1.
　　00:20:10: NAT: o: icmp (10.10.10.1, 3474) -> (203.93.188.51, 3474) [7]
　　00:20:10: NAT: i: icmp (10.10.10.1, 3474) -> (203.93.188.51, 3474) [7]
　　00:20:10: NAT: address not stolen for 10.10.10.1, proto 1 port 3474
　　00:20:10: NAT: failed to allocate address for 10.10.10.1, list/map 1.
　　00:20:12: NAT: o: icmp (10.10.10.1, 3475) -> (203.93.188.51, 3475) [8]
　　00:20:12: NAT: i: icmp (10.10.10.1, 3475) -> (203.93.188.51, 3475) [8]
　　00:20:12: NAT: address not stolen for 10.10.10.1, proto 1 port 3475
　　00:20:12: NAT: failed to allocate address for 10.10.10.1, list/map 1.
　　00:20:14: NAT: o: icmp (10.10.10.1, 3476) -> (203.93.188.51, 3476) [9]
　　00:20:14: NAT: i: icmp (10.10.10.1, 3476) -> (203.93.188.51, 3476) [9]
　　00:20:14: NAT: address not stolen for 10.10.10.1, proto 1 port 3476
　　00:20:14: NAT: failed to allocate address for 10.10.10.1, list/map 1.
　　Success rate is 0 percent (0/5)
　　2514#
　　大家看看我这个配置有什么问题。
　　我在终端配了10。10。10。10
　　PING 203.93.188.51
　　总是不行。