-------------------------------------------------
R1:
en
conf t
no ip domain-lookup
ip classless
ip -zero
in s1/1
ip add
no shut
in f0/0
ip add
no shut
ip route
------------------------------------------------------------------
R2:
en
conf t
no ip domain-lookup
ip classless
ip -zero
in s1/1
ip add
no shut
in f0/0
ip add
no shut
ip route
--------------------------------------
access-list 101 deny icmp host any echo
access-list 101 deny tcp host any eq 23
access-list 101 permit ip any any
in s1/1
ip access-group 101 in
------------------------------
命名访控
ip access-list extended xxx
deny icmp host any echo
deny tcp host any eq 23
permit ip any any
in s1/1
ip access-group xxx in
show ip access-list
----------------------
R3:
en
conf t
no ip domain-lookup
ip classless
ip -zero
in f0/0
ip add
no shut
ip route
-------------------------------
R4:
en
conf t
no ip domain-lookup
ip c
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