L3 Switch
layer2, 3 (둘다지원)
라우터에서 DHCP구현
SVI(Switched Virtual Interface)
Routed Port
L2 스위치는 IP연결 x
L3는 가능(no switchport 사용)
(스위치)
en
conf t
int g0/1
no switchport
ip address 10.0.0.1 255.255.255.252
no shutdown
exit
(전역설정모드)
ip routing
(오른쪽꺼)
en
conf t
int g0/1
no switchport
ip address 10.0.0.2 255.255.255.252
no shutdown
exit
(전역설정모드)
ip routing
>Routed Port (왼쪽)
각각의 인터페이스에 GW설정해 줘야하는데 IP충돌이남 (중간에 스위치 필요)
> SVI(오른쪽)
VLAN에 IP를 넣어줌
(vlan은 interface를 대표하는 기능)
(왼쪽)
int f0/1
no sw
ip add 1.0.0.254 255.255.255.0
no sh
do wr
exit
vl 10
name admin
vl 20
name sales
int r f0/1-5
sw a vl 10
int r f0/6
no sw
ip add 2.0.0.254 255.255.255.0
no sh
do wr
(오른쪽)
vlan 10
name admin
vl 20
name sales
do wr
int r f0/1-5
sw a vl 10
int r f0/6-10
sw a vl 20
do wr
int vlan10
ip add 1.0.0.254 255.255.255.0
no sh
do wr
exit
int vlan20
ip add 2.0.0.254 255.255.255.0
no sh
do wr
(왼쪽)
exit
ip dhcp pool babo10
network 1.0.0.0 255.255.255.0
default-router 1.0.0.254
dns-server 1.0.0.1
exit
ip dhcp excluded-address 1.0.0.1 1.0.0.30
ip dhcp excluded-address 1.0.0.254
ip dhcp pool babo20
network 2.0.0.0 255.255.255.0
default-router 2.0.0.254
dns-server 1.0.0.1
exit
ip dhcp excluded-address 2.0.0.1 2.0.0.30
ip dhcp excluded-address 2.0.0.254
ip route 0.0.0.0 0.0.0.0 10.0.0.2
(오른쪽)
exit
ip route 0.0.0.0 0.0.0.0 10.0.0.1
do wr
int vlan10
ip helper-address 10.0.0.1
int vlan20
ip helper-address 10.0.0.1
do wr
> 설계를 잘못함. 스위치끼리 trunk port를 사용 했어야함
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