China three routers do DHCP relay

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R1 on :

[H3c]sysname DHCPServer

[Dhcpserver]int s1/0

[Dhcpserver-serial1/0]ip address 12.1.1.1 255.255.255.0

[Dhcpserver-serial1/0]undo Shu

[Dhcpserver-serial1/0]link-protocol?

Fr Frame Relay Protocol

HDLC High-level Data Link Control Protocol

PPP Point-to-Point Protocol

STLP Synchronization Transparent Transport Link protocol

[Dhcpserver-serial1/0]link-protocol PPP

[Dhcpserver-serial1/0]exit

[Dhcpserver]ip route-static 23.2.2.0 255.255.255.0 12.1.1.2

[DHCPServer] DHCP Enable

[DHCPServer] DHCP server Ip-pool Wudi

[Dhcpserver-dhcp-pool-wudi] Network 23.2.2.0 Mask 255.255.255.0

[Dhcpserver-dhcp-pool-wudi] gateway-list 23.2.2.2

[Dhcpserver-dhcp-pool-wudi]quit

[Dhcpserver]save

R2 on

System View:return to User View with Ctrl + Z.

[H3c]sysname Dhcprelay

[Dhcprelay]dhcp Enable

[Dhcprelay]int s1/0

[Dhcprelay-serial1/0]ip address 12.1.1.2 255.255.255.0

[Dhcprelay-serial1/0]undo Shu

[Dhcprelay-serial1/0]qui

[Dhcprelay] int g0/0

[Dhcprelay-gigabitethernet0/0]ip Add 23.2.2.2 255.255.255.0

[Dhcprelay-gigabitethernet0/0]undo Shu

[dhcprelay-gigabitethernet0/0] DHCP Select relay

[dhcprelay-gigabitethernet0/0] DHCP relay server-address 12.1.1.1

R3 on

[H3c]sysname dhcpclient

[Dhcpclient] int g0/0

[dhcpclient-gigabitethernet0/0] IP Add dhcp-alloc

Validation :

R3

[Dhcpclient]dis IP int b

*down:administratively down

(s): Spoofing (L): Loopback

Interface physical Protocol IP address Description

ge0/0 up 23.2.2.1--

GE0/1 down----

GE0/2 down----

ge5/0 down----

GE5/1 down----

ge6/0 down----

GE6/1 down----

ser1/0 down----

ser2/0 down----

ser3/0 down----

ser4/0 down----

[Dhcpclient]dis DHCP Client

gigabitethernet0/0 DHCP Client Information:

Current State:bound

Allocated ip:23.2.2.1 255.255.255.0

Allocated lease:86400 seconds, t1:38293 seconds, t2:75600 seconds

DHCP server:12.1.1.1

R1

[Dhcpserver]dis DHCP server Ip-in-use

IP address Client identifier/lease expiration Type

Hardware Address

23.2.2.1 0033-3234-302e-3664-jul 9 15:37:35 Auto (C)

3234-2e30-3330-352d-

4745-302f-30

R1

[Dhcpserver]ping 23.2.2.1

Ping 23.2.2.1 (23.2.2.1): Data bytes, press Ctrl_c to break

Bytes from 23.2.2.1:icmp_seq=0 ttl=254 time=2.211 ms

Bytes from 23.2.2.1:icmp_seq=1 ttl=254 time=1.382 ms

Bytes from 23.2.2.1:icmp_seq=2 ttl=254 time=2.971 ms

Bytes from 23.2.2.1:icmp_seq=3 ttl=254 time=1.370 ms

Bytes from 23.2.2.1:icmp_seq=4 ttl=254 time=1.787 ms

---Ping statistics for 23.2.2.1---

5 packets transmitted, 5 packets received, 0.0% packet loss

Round-trip Min/avg/max/std-dev = 1.370/1.944/2.971/0.599 ms

This article is from the "Bury All Unknown Happiness" blog, please be sure to keep this source http://ykxing.blog.51cto.com/893330/1673898

China three routers do DHCP relay