Core Switch ??

1
?????????

• ???????
• ???

2
Core Switch ??

• Virtual LAN??
• ?Virtual LAN??Ports
• IP Interface??
• ????(Static Route)??
• Access Control List??
• DHCP Server??
• NAT??

3
Virtual LAN??

• ?????mylan?Virtual LAN
• ???Virtual LAN???????
• Vlan????
• vlan create vlan?? ??s id vlan??
• Example
• vlan create mylan ip id 100

4
?Virtual LAN??Ports

• ???mylan?Virtual LAN???? Ports
• ?????Ports????mylan?
• ????
• vlan add ports Port?? to Vlan??
• Example
• vlan add ports et.1.1 to mylan
• vlan add ports et.1.(2-4) to mylan

5
IP Interface??

• ???mylan?Virtual LAN???IP Interface
• ???????mylan??Interface Name?IP??/????
• ????
• interface create ip Interface??
  address-netmask IP??/???? vlan Vlan??
• Example
• interface create ip ipmylan address-netmask
  192.168.0.254/255.255.255.0 vlan mylan

6
????(Static Route)??

• ??????????????
• ??????????????/??????????
• ????
• ip add route ????/???? gateway ?????
• Example
• ip add route 203.64.237.0/255.255.255.0 gateway
  192.168.127.253
• ip add route default gateway 192.168.127.253

7
Access Control List??(?)

• ????Core Switch?????????????(???)????
• ????????????????????
• ???? ???? permit / deny
• acl acl?? ???? ???? ???? ???? ??Port
  ??Port
• Example
• acl myacl_1 ip permit 192.168.0.0/24
  203.64.237.0/24 80 80
• acl myacl_2 ip permit 192.168.0.0/24 any any any

8
Access Control List??(?)

• acl myacl_3 ip deny 192.168.0.33/32 any any any
• acl myacl_4 ip deny 192.168.0.0/24 any any any
• ????
• acl acl?? ???? apply
• Example
• acl myacl_5 ip apply ipmylan

9
DHCP Server??(?)

• ??Core Switch???DHCP Server
• ???DHCP????IP????
• ??????DHCP??????????
• dhcp DHCP?? define parameters ????1 ???1
  ????2???2
• Example
• dhcp mydhcp define parameters address-netmask
  192.168.0.254/24 gateway 192.168.0.254 dns-server
  203.64.237.1 lease-time 4

10
DHCP Server??(?)

• ??????DHCP????IP????
• dhcp DHCP?? define pool ????-????
• Example
• dhcp mydhcp define pool 192.168.0.1-192.168.0.200

11
NAT??(?)

• ??Core Switch??Network Address Translation
• ????????????
• ????????????Interface
• nat set interface Interface?? inside /
  outside
• Example
• nat set interface ipmylan inside
• nat set interface ip236 outside

12
NAT??(?)

• ????????????
• nat create dynamic local-acl-pool acl??
  global-pool ????IP??- ????IP??
  enable-ip-overload
• Example
• nat create dynamic local-acl-pool misnat
  global-pool 203.64.234.6 enable-ip-overload

13
NAT??(?)

• ????????????
• nat create static local-ip ??IP?? global-ip
  ??IP?? protocol ip
• Example
• nat create static local-ip 192.168.0.12 global-ip
  203.64.237.66 protocol ip

14
Core Switch????

• Running Configuration
• Startup Configuration
• CPU Utilities
• Routing Table
• DHCP
• NAT