核心
华为路由器访问控制列表默认的过滤模式是（ ）。
A.拒绝B.允许C.必须配置D.空
思科路由器访问控制列表默认的过滤模式是（）
A.拒绝B.允许C.必须配置D.空
命令解析
acl number 2000
rule 5 permit source 20.1.1.1 0
rule 10 deny
特别注意：
需要将允许的全部的写在前面，最后追加一条禁止所有，这样操作合理
配置
R1:
[r1]display current-configuration
[V200R003C00]
#
sysname r1
#
snmp-agent local-engineid 800007DB03000000000000
snmp-agent
#
clock timezone China-Standard-Time minus 08:00:00
#
portal local-server load portalpage.zip
#
drop illegal-mac alarm
#
set cpu-usage threshold 80 restore 75
#
acl number 2000
rule 5 permit source 20.1.1.1 0
rule 10 deny
#
aaa
authentication-scheme default
authorization-scheme default
accounting-scheme default
domain default
domain default_admin
local-user admin password cipher %$%$K8m.Nt84DZ}e#<0`8bmE3Uw}%$%$
local-user admin service-type http
#
firewall zone Local
priority 15
#
interface GigabitEthernet0/0/0
ip address 30.1.1.1 255.255.255.0
#
interface GigabitEthernet0/0/1
ip address 12.1.1.1 255.255.255.0
#
interface GigabitEthernet0/0/2
#
interface NULL0
#
interface LoopBack0
ip address 1.1.1.1 255.255.255.255
#
ospf 100 router-id 1.1.1.1
filter-policy 2000 import
area 0.0.0.0
network 1.1.1.1 0.0.0.0
network 12.1.1.0 0.0.0.255
network 30.1.1.0 0.0.0.255
#
user-interface con 0
authentication-mode password
user-interface vty 0 4
user-interface vty 16 20
#
wlan ac
#
return
[r1]
R2:
<r2>display current-configuration
[V200R003C00]
#
sysname r2
#
snmp-agent local-engineid 800007DB03000000000000
snmp-agent
#
clock timezone China-Standard-Time minus 08:00:00
#
portal local-server load portalpage.zip
#
drop illegal-mac alarm
#
set cpu-usage threshold 80 restore 75
#
aaa
authentication-scheme default
authorization-scheme default
accounting-scheme default
domain default
domain default_admin
local-user admin password cipher %$%$K8m.Nt84DZ}e#<0`8bmE3Uw}%$%$
local-user admin service-type http
#
firewall zone Local
priority 15
#
interface GigabitEthernet0/0/0
ip address 12.1.1.2 255.255.255.0
#
interface GigabitEthernet0/0/1
#
interface GigabitEthernet0/0/2
#
interface NULL0
#
interface LoopBack0
ip address 2.2.2.2 255.255.255.255
#
interface LoopBack1
ip address 10.1.1.1 255.255.255.255
#
interface LoopBack2
ip address 20.1.1.1 255.255.255.255
#
ospf 100 router-id 2.2.2.2
area 0.0.0.0
network 2.2.2.2 0.0.0.0
network 10.1.1.1 0.0.0.0
network 12.1.1.0 0.0.0.255
network 20.1.1.1 0.0.0.0
#
user-interface con 0
authentication-mode password
user-interface vty 0 4
user-interface vty 16 20
#
wlan ac
#
return
<r2>
