Router(config)#ip access-list extended serveraccess
Creates an extended named ACL called serveraccess
Router(config-ext-nacl)#permit tcp any host 131.108.101.99 eq smtp
Permits mail packets from any source to reach host 131.108.101.99
Router(config-ext-nacl)#permit udp any host 131.108.101.99 eq domain
Permits DNS packets from any source to reach host 131.108.101.99
Router(config-ext-nacl)#deny ip any any log
Denies all other packets from going anywhere. If any packets do get denied, then log the results for me to look at later
Router(config-ext-nacl)#exit
Router(config)#int fa 0/0 Router(config-if)#ip access-group serveraccess out
Applies this ACL to the Fast Ethernet interface 0/0 in an outbound direction
