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該實驗是華為模擬器eNSP模擬器、dhcp中繼實驗
#DHCP中繼的應用場景：
通常在DHCP分配網段過多的情況下，網關路由器上配置DHCP服務，壓力過大，
一般我們用第二路由器，或則第二臺DHCP服務器來分擔業務
這里設置一臺專用的DHCP服務器為pc機配置IP地址
LSW1
<Huawei>system-view
Enter system view, return user view with Ctrl+Z.
[Huawei]sysname LSW1
[LSW1]un in en
Info: Information center is disabled.
[LSW1]vlan bat 10 20
Info: This operation may take a few seconds. Please wait for a moment...done.
[LSW1]int e 0/0/1
[LSW1-Ethernet0/0/1]p l a
[LSW1-Ethernet0/0/1]p d v 10
[LSW1-Ethernet0/0/1]un sh
Info: Interface Ethernet0/0/1 is not shutdown.
[LSW1-Ethernet0/0/1]int e 0/0/2
[LSW1-Ethernet0/0/2]p l a
[LSW1-Ethernet0/0/2]p d v 20
[LSW1-Ethernet0/0/2]un sh
Info: Interface Ethernet0/0/2 is not shutdown.
[LSW1-Ethernet0/0/2]int e 0/0/3
[LSW1-Ethernet0/0/3]p l a
[LSW1-Ethernet0/0/3]p d v 10
[LSW1-Ethernet0/0/3]un sh
Info: Interface Ethernet0/0/3 is not shutdown.
[LSW1-Ethernet0/0/3]int e 0/0/4
[LSW1-Ethernet0/0/4]p l a
[LSW1-Ethernet0/0/4]p d v 20
[LSW1-Ethernet0/0/4]un sh
Info: Interface Ethernet0/0/4 is not shutdown.
[LSW1-Ethernet0/0/4]int g 0/0/1
[LSW1-GigabitEthernet0/0/1]p l t
[LSW1-GigabitEthernet0/0/1]p t a v a
[LSW1-GigabitEthernet0/0/1]un sh
Info: Interface GigabitEthernet0/0/1 is not shutdown.
[LSW1-GigabitEthernet0/0/1]dis vlan
The total number of vlans is : 3
1 common UT:Eth0/0/5(D) Eth0/0/6(D) Eth0/0/7(D) Eth0/0/8(D)
Eth0/0/9(D) Eth0/0/10(D) Eth0/0/11(D) Eth0/0/12(D)
Eth0/0/13(D) Eth0/0/14(D) Eth0/0/15(D) Eth0/0/16(D)
Eth0/0/17(D) Eth0/0/18(D) Eth0/0/19(D) Eth0/0/20(D)
Eth0/0/21(D) Eth0/0/22(D) GE0/0/1(U) GE0/0/2(D)
10 common UT:Eth0/0/1(U) Eth0/0/3(U)
TG:GE0/0/1(U)
20 common UT:Eth0/0/2(U) Eth0/0/4(U)
TG:GE0/0/1(U)
[LSW1-GigabitEthernet0/0/1]
[LSW1-GigabitEthernet0/0/1]dis int b
InUti/OutUti: input utility/output utility
Interface PHY Protocol InUti OutUti inErrors outErrors
Ethernet0/0/1 up up 0% 0% 0 0
Ethernet0/0/2 up up 0% 0% 0 0
Ethernet0/0/3 up up 0% 0% 0 0
Ethernet0/0/4 up up 0% 0% 0 0
GigabitEthernet0/0/1 up up 0% 0% 0 0R1
<Huawei>system-view
Enter system view, return user view with Ctrl+Z.
[Huawei]un in en
Info: Information center is disabled.
[Huawei]dhcp enable
Info: The operation may take a few seconds. Please wait for a moment.done.
[Huawei]int g 0/0/0
[Huawei-GigabitEthernet0/0/0]ip add 14.0.0.1 24
[Huawei-GigabitEthernet0/0/0]un sh
Info: Interface GigabitEthernet0/0/0 is not shutdown.
[Huawei-GigabitEthernet0/0/0]int g 0/0/3
[Huawei-GigabitEthernet0/0/3]ip add 12.0.0.1 24
[Huawei-GigabitEthernet0/0/3]un sh
Info: Interface GigabitEthernet0/0/3 is not shutdown.
[Huawei-GigabitEthernet0/0/3]q
[Huawei]vlan bat 10 20
Info: This operation may take a few seconds. Please wait for a moment...done.
[Huawei]int g 0/0/1.10
[Huawei-GigabitEthernet0/0/1.10]dot1q termination vid 10
[Huawei-GigabitEthernet0/0/1.10]ip add 192.168.10.1 24
[Huawei-GigabitEthernet0/0/1.10]un sh
Info: Interface GigabitEthernet0/0/1.10 is not shutdown.
[Huawei-GigabitEthernet0/0/1.10]q
[Huawei]int g 0/0/1.10
[Huawei-GigabitEthernet0/0/1.10]dis this
#
interface GigabitEthernet0/0/1.10
dot1q termination vid 10
ip address 192.168.10.1 255.255.255.0
#
return
[Huawei-GigabitEthernet0/0/1.10]a b e
[Huawei-GigabitEthernet0/0/1.10]dhcp select relay
[Huawei-GigabitEthernet0/0/1.10]dhcp relay server-ip 14.0.0.2
[Huawei-GigabitEthernet0/0/1.10]q
[Huawei]int g 0/0/1.20
[Huawei-GigabitEthernet0/0/1.20]dot1q termination vid 20
[Huawei-GigabitEthernet0/0/1.20]ip add 192.168.20.1 24
[Huawei-GigabitEthernet0/0/1.20]a b e
[Huawei-GigabitEthernet0/0/1.20]dhcp select relay
[Huawei-GigabitEthernet0/0/1.20]dhcp relay server-ip 14.0.0.2
[Huawei-GigabitEthernet0/0/1.20]q
[Huawei]ip route-static 15.0.0.0 24 12.0.0.2
[Huawei]R2
<Huawei>system-view
Enter system view, return user view with Ctrl+Z.
[Huawei]sysname R2
[R2]un in en
Info: Information center is disabled.
[R2]int g 0/0/3
[R2-GigabitEthernet0/0/3]ip add 12.0.0.2 24
[R2-GigabitEthernet0/0/3]un sh
Info: Interface GigabitEthernet0/0/3 is not shutdown.
[R2-GigabitEthernet0/0/3]int e 0/0/0
[R2-Ethernet0/0/0]q
[R2]dhcp enable
Info: The operation may take a few seconds. Please wait for a moment.done.
[R2]int e 0/0/0
[R2-Ethernet0/0/0]ip add 15.0.0.1 24
[R2-Ethernet0/0/0]un sh
Info: Interface Ethernet0/0/0 is not shutdown.
[R2-Ethernet0/0/0]dhcp select relay
[R2-Ethernet0/0/0]dhcp relay server-ip 14.0.0.2
[R2-Ethernet0/0/0]q
[R2]ip route-static 14.0.0.0 24 12.0.0.1
[R2]ip route-static 192.168.0.0 16 12.0.0.1
[R2]dis ip ?
as-path-filter Specify regular expression access list number
community-filter Add a community-filter entry
error Information of error packet
extcommunity-filter Match BGP/*** extended community filter
ha Display information of socket HA
host Host table(s)
interface Show information of interfaces
ip-prefix Specify an address prefix-list
ipv6-prefix Specify an IPv6 address prefix-list
netstream Netstream feature
policy-based-route Display policy based routing information
pool Configure a local IP pool
prefix-limit Prefix limit
rd-filter Route-distinguisher filter
routing-table Routing table
socket Display information of created sockets
statistics Display statistics information of datagram
topology The name of topology
userlog Userlog feature
***-instance *** instance information
[R2]dis ip routing-table
Route Flags: R - relay, D - download to fib
------------------------------------------------------------------------------
Routing Tables: Public
Destinations : 8 Routes : 8
Destination/Mask Proto Pre Cost Flags NextHop Interface
12.0.0.0/24 Direct 0 0 D 12.0.0.2 GigabitEthernet
0/0/3
12.0.0.2/32 Direct 0 0 D 127.0.0.1 GigabitEthernet
0/0/3
14.0.0.0/24 Static 60 0 RD 12.0.0.1 GigabitEthernet
0/0/3
15.0.0.0/24 Direct 0 0 D 15.0.0.1 Ethernet0/0/0
15.0.0.1/32 Direct 0 0 D 127.0.0.1 Ethernet0/0/0
127.0.0.0/8 Direct 0 0 D 127.0.0.1 InLoopBack0
127.0.0.1/32 Direct 0 0 D 127.0.0.1 InLoopBack0
192.168.0.0/16 Static 60 0 RD 12.0.0.1 GigabitEthernet
0/0/3
[R2]R3
<Huawei>system-view
Enter system view, return user view with Ctrl+Z.
[Huawei]sysname R3
[R3]un in en
Info: Information center is disabled.
[R3]dhcp enable
Info: The operation may take a few seconds. Please wait for a moment.done.
[R3]int g 0/0/0
[R3-GigabitEthernet0/0/0]ip add 14.0.0.2 24
[R3-GigabitEthernet0/0/0]un sh
Info: Interface GigabitEthernet0/0/0 is not shutdown.
[R3-GigabitEthernet0/0/0]dhcp select global
[R3-GigabitEthernet0/0/0]q
[R3]ip pool dhcp192.168.10.0
Info:It's successful to create an IP address pool.
[R3-ip-pool-dhcp192.168.10.0]network 192.168.10.0 mask 24
[R3-ip-pool-dhcp192.168.10.0]gateway 192.168.10.1
[R3-ip-pool-dhcp192.168.10.0]dns-list 1.1.1.1
[R3-ip-pool-dhcp192.168.10.0]?
ip-pool view commands:
arp-ping ARP-ping
ce-ping Ce-ping tool
configuration Configuration interlock
display Display current system information
dns-list Configure DNS servers
domain-name Configure domain name
excluded-ip-address Mark disable IP addresses
gateway-list Configure the gateway
import Imports the following network configuration parameters
from a central server into local ip pool database:
domain name, dns server and netbios server.
lease Configure the lease of the IP pool
lock Lock the IP pool
mac-populate Populate an OAM MAC to FDB entry
mac-purge Purge an OAM MAC from FDB entry
monitor System monitor dynamic show
mtrace Trace route to multicast source
nbns-list Configure the windows's netbios name servers
netbios-type Netbios node type
network Add a network
next-server The address of the server to use in the next step of the
client's bootstrap process.
option Configure the DHCP options
option121 DHCP option 121
option184 DHCP option 184
ping Send echo messages
quit Exit from current command view
reset Reset operation
return Exit to user view
screen-width Set screen width
static-bind Static bind
test-aaa Accounts test
trace Trace route (switch) to host on Data Link Layer
tracert Trace route to host
undo Cancel current setting
***-instance Config *** instance
vrbd Display version information
[R3-ip-pool-dhcp192.168.10.0]q
[R3]ip pool dhcp192.168.20.0
Info:It's successful to create an IP address pool.
[R3-ip-pool-dhcp192.168.20.0]network 192.168.20.0 mask 24
[R3-ip-pool-dhcp192.168.20.0]gateway-list 192.168.20.1
[R3-ip-pool-dhcp192.168.20.0]dns-list 1.1.1.1 2.2.2.2
[R3-ip-pool-dhcp192.168.20.0]q
[R3]ip pool dhcp15.0.0.0
Info:It's successful to create an IP address pool.
[R3-ip-pool-dhcp15.0.0.0]network 15.0.0.0 mask 24
[R3-ip-pool-dhcp15.0.0.0]static-bind ip-address 15.0.0.88 mac-address 5489-98A
B-2A25
Error:Please configure the gateway first.
[R3-ip-pool-dhcp15.0.0.0]gateway-list 15.0.0.1
[R3-ip-pool-dhcp15.0.0.0]static-bind ip-address 15.0.0.88 mac-address 5489-98AB-
2A25
[R3-ip-pool-dhcp15.0.0.0]q
[R3]ip route-static 0.0.0.0 0.0.0.0 14.0.0.1
[R3]結果如下
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