配置R2: Router>en Router#conf t Router(config)#host R2 R2(config)#int e0/1 R2(config-if)#ip add 172.16.12.2 255.255.255.0 R2(config-if)#no sh R2(config-if)#exit R2(config)#int e0/3 R2(config-if)#ip add 192.168.23.1 255.255.255.0 R2(config-if)#no sh R2(config-if)#exit R2(config)#ip access-list extended outside R2(config-ext-nacl)#permit tcp any any reflect ref R2(config-ext-nacl)#permit udp any any reflect ref R2(config-ext-nacl)#exit R2(config)#ip access-list extended inside R2(config-ext-nacl)#evaluate ref 到这一步就不能配置了。 R2(config-ext-nacl)#exit R2(config)#int e0/3 R2(config-if)#ip access-group outside out R2(config-if)#ip access-group inside in R2(config-if)#exit R2(config)#ip route 0.0.0.0 0.0.0.0 192.168.23.2 下面是出错提示: Router(config-ext-nacl)#permit tcp any any reflect ref
Router(config-ext-nacl)#permit udp any any relfect ref
Router(config-ext-nacl)#exit
Router(config)#ip access-list extended inside
Router(config-ext-nacl)#valuate ref
% Invalid input detected at '^' marker. Router(config-ext-nacl)#valuate ref
% Invalid input detected at '^' marker. Router(config-ext-nacl)#evaluate ref
% Invalid input detected at '^' marker. Router(config-ext-nacl)#?
deny
exit
permit Router(config-ext-nacl)#?
deny
exit
permit
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