Bài tập cho Vlan ra internet !!!

[9pota]

Thưa các thầy, em có sơ đồ như thế này:

Em ko biết mô hình này ngoài thực tế có chạy dc ko ạ @-)

Em đang gặp vấn đề như sau: các máy bên trong vlan ko ping ra dc ISP trong khi từ RA đã ping ra dc rồi :106:

Mog các thầy và các bạn giúp em với !!! Em xin cảm ơn !!!

Em xin post file cấu hình:
RA:

hostname R1
!
boot-start-marker
boot-end-marker
!
!
no aaa new-model
memory-size iomem 5
ip cef
!
!
!
interface FastEthernet0/0
no ip address
duplex auto
speed auto
!
interface FastEthernet0/0.1
encapsulation dot1Q 2
ip address 192.168.2.200 255.255.25
!
interface FastEthernet0/1
ip address 192.168.1.1 255.255.255.
duplex auto
speed auto
!
interface Serial1/0
no ip address
shutdown
serial restart-delay 0
!
interface Serial1/1
no ip address
shutdown
serial restart-delay 0
!
interface Serial1/2
no ip address
shutdown
serial restart-delay 0
!
interface Serial1/3
no ip address
shutdown
serial restart-delay 0
!
ip route 0.0.0.0 0.0.0.0 192.168.1.2
!
!
ip http server
no ip http secure-server
!
!
!
!
!
control-plane
!
!
!
!
!
line con 0
line aux 0
line vty 0 4
login
!
!
end

R2:

hostname R2
!
boot-start-marker
boot-end-marker
!
!
no aaa new-model
memory-size iomem 5
ip cef
!
!
!
!
!
interface FastEthernet0/0
no ip address
shutdown
duplex auto
speed auto
!
interface FastEthernet0/1
ip address 192.168.1.2 255.255.255.0
ip nat inside
ip virtual-reassembly
duplex auto
speed auto
!
interface Serial1/0
ip address 210.10.10.2 255.255.255.0
ip nat outside
ip virtual-reassembly
serial restart-delay 0
!
interface Serial1/1
no ip address
shutdown
serial restart-delay 0
!
interface Serial1/2
no ip address
shutdown
serial restart-delay 0
!
interface Serial1/3
no ip address
shutdown
serial restart-delay 0
!
ip route 0.0.0.0 0.0.0.0 210.10.10.1
!
!
ip http server
no ip http secure-server
ip nat inside source list 10 interface Serial1/0 overload
!
access-list 10 permit 192.168.1.0 0.0.0.255
!
!
!
!
control-plane
!
!
!
!
line con 0
line aux 0
line vty 0 4
login
!
!
end

ISP:

hostname ISP
!
boot-start-marker
boot-end-marker
!
!
no aaa new-model
memory-size iomem 5
ip cef
!

!
!
interface Loopback1
ip address 65.5.5.1 255.255.255.0
!
interface FastEthernet0/0
no ip address
shutdown
duplex auto
speed auto
!
interface FastEthernet0/1
no ip address
shutdown
duplex auto
speed auto
!
interface Serial1/0
ip address 210.10.10.1 255.255.255.0
serial restart-delay 0
!
interface Serial1/1
no ip address
shutdown
serial restart-delay 0
!
interface Serial1/2
no ip address
shutdown
serial restart-delay 0
!
interface Serial1/3
no ip address
shutdown
serial restart-delay 0
!
!
!
ip http server
no ip http secure-server
!
!
!
!
!
control-plane
!
!
!
!
!
!
line con 0
line aux 0
line vty 0 4
login
!
!
end

SW:

hostname SW
!
boot-start-marker
boot-end-marker
!
!
no aaa new-model
memory-size iomem 5
ip cef
!
!
no ip dhcp use vrf connected
!
ip dhcp pool vlan2
network 192.168.2.0 255.255.255.0
default-router 192.168.2.200
!
!
!
!
interface FastEthernet0/0
no ip address
shutdown
duplex auto
speed auto
!
interface FastEthernet0/1
no ip address
shutdown
duplex auto
speed auto
!
interface FastEthernet1/0
!
interface FastEthernet1/1
!
interface FastEthernet1/2
switchport access vlan 2
!
interface FastEthernet1/3
switchport access vlan 3
!
interface FastEthernet1/4
switchport access vlan 4
!
interface FastEthernet1/5
!
interface FastEthernet1/6
!
interface FastEthernet1/7
!
interface FastEthernet1/8
!
interface FastEthernet1/9
!
interface FastEthernet1/10
switchport mode trunk
!
interface FastEthernet1/11
!
interface FastEthernet1/12
!
interface FastEthernet1/13
!
interface FastEthernet1/14
!
interface FastEthernet1/15
!
interface Vlan1
no ip address
!
interface Vlan2
ip address 192.168.2.2 255.255.255.0
!
!
!
ip http server
no ip http secure-server
!
!
!
!
!
control-plane
!
!
!
!
!
line con 0
line aux 0
line vty 0 4
login
!
!
end

[luancb]

RA ping được là nhờ Default Gateway, còn các host trong Vlan chưa đi được là do chưa định tuyến, nếu đây là mô hình thực tế thì bạn cần phải NAT nữa, vì Ip private ko thể ra Internet.