锐捷交换机dhcp服务+中继+不同VRF dhcp组网
一 组网说明
组网如上图：
Dhcp服务器和dhcp中继设备，接口下有vrf，并且属于不同的vrf，存在特殊配置
二 设备配置
2.1 dhcp-server查看
hostname dhcp-server
!
ip vrf VRF10
rd 10:10
!
service dhcp
ip dhcp excluded-address 192.168.1.1 192.168.1.200
ip dhcp excluded-address 192.168.1.201 192.168.1.222
!
ip dhcp pool vlan100
network 192.168.1.0 255.255.255.0
dns-server 202.106.0.20
default-router 192.168.1.1
!
interface GigabitEthernet 0/0
no switchport
ip vrf forwarding VRF10
ip address 1.1.1.1 255.255.255.0
!
ip route vrf VRF10 192.168.1.0 255.255.255.0 1.1.1.2
!
2.2 dhcp-relay查看
hostname dhcp-relay
!
ip vrf VRF10
rd 10:10
ip vrf VRF20
rd 20:20
!
service dhcp
!
vlan range 1,100
!
interface GigabitEthernet 0/0
no switchport
ip vrf forwarding VRF10
ip address 1.1.1.2 255.255.255.0
!
interface GigabitEthernet 0/1
switchport access vlan 100
!
interface GigabitEthernet 0/2
switchport access vlan 100
!
interface VLAN 100
ip vrf forwarding VRF20
ip address 192.168.1.1 255.255.255.0
ip helper-address vrf VRF20 1.1.1.1
!
!
ip route vrf VRF20 1.1.1.0 255.255.255.0 GigabitEthernet 0/0 //配置vrf间路由，不需要写下一跳地址
ip route vrf VRF10 192.168.1.0 255.255.255.0 VLAN 100
!
2.3 dhcp-client地址查看（因为VRF本地有意义，客户端侧VRF可添加，也可以不添加）
hostname dhcp-client
!
interface GigabitEthernet 0/0
no switchport
ip address dhcp
!
2.4 dhcp-client和VPC状态查看
dhcp-client#sh ip in b
Interface IP-Address(Pri) IP-Address(Sec) Status Protocol
GigabitEthernet 0/0 192.168.1.224/24 no address up up
dhcp-client#
dhcp-client#
localhost:~# ifconfig
eth0 Link encap:Ethernet HWaddr 50:00:00:04:00:00
inet addr:192.168.1.223 Bcast:0.0.0.0 Mask:255.255.255.0
inet6 addr: fe80::5200:ff:fe04:0/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:47 errors:0 dropped:0 overruns:0 frame:0
TX packets:53 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:11638 (11.3 KiB) TX bytes:14077 (13.7 KiB)
lo Link encap:Local Loopback
inet addr:127.0.0.1 Mask:255.0.0.0
inet6 addr: ::1/128 Scope:Host
UP LOOPBACK RUNNING MTU:65536 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:0 (0.0 B) TX bytes:0 (0.0 B)
localhost:~#
三 设备状态查看与业务测试
3.1 dhcp-client内部和互联网访问测试
dhcp-client#
dhcp-client#
dhcp-client#sh ip in b
Interface IP-Address(Pri) IP-Address(Sec) Status Protocol
GigabitEthernet 0/0 192.168.1.224/24 no address up up
dhcp-client#
dhcp-client#ping 192.168.1.223
Sending 5, 100-byte ICMP Echoes to 192.168.1.223, timeout is 2 seconds:
< press Ctrl+C to break >
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 1/13/60 ms.
dhcp-client#
dhcp-client#ping 1.1.1.1
Sending 5, 100-byte ICMP Echoes to 1.1.1.1, timeout is 2 seconds:
< press Ctrl+C to break >
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 3/4/6 ms.
dhcp-client#
dhcp-client#traceroute 1.1.1.1 source 192.168.1.224
< press Ctrl+C to break >
Tracing the route to 1.1.1.1
1 1.1.1.1 3 msec 2 msec 4 msec
dhcp-client#
3.2 VPC内部和互联网访问测试
ocalhost:~# ifconfig
eth0 Link encap:Ethernet HWaddr 50:00:00:04:00:00
inet addr:192.168.1.223 Bcast:0.0.0.0 Mask:255.255.255.0
inet6 addr: fe80::5200:ff:fe04:0/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:211 errors:0 dropped:0 overruns:0 frame:0
TX packets:216 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:27626 (26.9 KiB) TX bytes:29879 (29.1 KiB)
lo Link encap:Local Loopback
inet addr:127.0.0.1 Mask:255.0.0.0
inet6 addr: ::1/128 Scope:Host
UP LOOPBACK RUNNING MTU:65536 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:0 (0.0 B) TX bytes:0 (0.0 B)
localhost:~#
localhost:~# ping 192.168.1.223
PING 192.168.1.223 (192.168.1.223): 56 data bytes
64 bytes from 192.168.1.223: seq=0 ttl=64 time=0.143 ms
64 bytes from 192.168.1.223: seq=1 ttl=64 time=0.045 ms
^C
--- 192.168.1.223 ping statistics ---
2 packets transmitted, 2 packets received, 0% packet loss
round-trip min/avg/max = 0.045/0.094/0.143 ms
localhost:~#
localhost:~#
localhost:~# traceroute 1.1.1.1
traceroute to 1.1.1.1 (1.1.1.1), 30 hops max, 46 byte packets
1 1.1.1.1 (1.1.1.1) 2.588 ms 4.714 ms 3.109 ms
localhost:~#
3.3 dhcp-server分配地址查看可以看到已经分配
dhcp-server#show ip dhcp pool
Pool name Total Distributed Remained Percentage
------------ ----------- ----------- -------- -----------
vlan100 32 2 30 6.25000
dhcp-server#
四 dhcp-server和client可以配置VRF或者无需配置
4.1 dhcp-server去掉VRF后配置
hostname dhcp-server
!
service dhcp
ip dhcp excluded-address 192.168.1.2 192.168.1.10
!
ip dhcp pool vlan100
network 192.168.1.0 255.255.255.0
dns-server 202.106.0.20
default-router 192.168.1.1
!
interface GigabitEthernet 0/0
no switchport
ip address 1.1.1.1 255.255.255.0
!
ip route 192.168.1.0 255.255.255.0 1.1.1.2
!
4.2 dhcp-client获取地址和测试
dhcp-client#*Mar 6 16:21:44: %DHCP_CLIENT-6-ADDRESS_ASSIGN: Interface GigabitEthernet 0/0 assigned DHCP address 192.168.1.11, mask 255.255.255.0.
dhcp-client#
dhcp-client#
dhcp-client#sh ip in b
Interface IP-Address(Pri) IP-Address(Sec) Status Protocol
GigabitEthernet 0/0 192.168.1.224/24 no address up up
dhcp-client#
dhcp-client#show ip route
Codes: C - Connected, L - Local, S - Static
R - RIP, O - OSPF, B - BGP, I - IS-IS, V - Overflow route
N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2
E1 - OSPF external type 1, E2 - OSPF external type 2
SU - IS-IS summary, L1 - IS-IS level-1, L2 - IS-IS level-2
IA - Inter area, EV - BGP EVPN, A - Arp to host
LA - Local aggregate route
* - candidate default
Gateway of last resort is 192.168.1.1 to network 0.0.0.0
S* 0.0.0.0/0 [1/0] via 192.168.1.1
C 192.168.1.0/24 is directly connected, GigabitEthernet 0/0
C 192.168.1.223/32 is local host.
dhcp-client#
dhcp-client#ping 1.1.1.1
Sending 5, 100-byte ICMP Echoes to 1.1.1.1, timeout is 2 seconds:
< press Ctrl+C to break >
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 1/2/4 ms.
dhcp-client#
4.3 VPC获取地址和测试
localhost:~# ifconfig
eth0 Link encap:Ethernet HWaddr 50:00:00:04:00:00
inet addr:192.168.1.223 Bcast:0.0.0.0 Mask:255.255.255.0
inet6 addr: fe80::5200:ff:fe04:0/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:7 errors:0 dropped:0 overruns:0 frame:0
TX packets:14 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:1032 (1.0 KiB) TX bytes:1555 (1.5 KiB)
lo Link encap:Local Loopback
inet addr:127.0.0.1 Mask:255.0.0.0
inet6 addr: ::1/128 Scope:Host
UP LOOPBACK RUNNING MTU:65536 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:0 (0.0 B) TX bytes:0 (0.0 B)
localhost:~#
localhost:~# route -n
Kernel IP routing table
Destination Gateway Genmask Flags Metric Ref Use Iface
0.0.0.0 192.168.1.1 0.0.0.0 UG 202 0 0 eth0
192.168.1.0 0.0.0.0 255.255.255.0 U 0 0 0 eth0
localhost:~#
localhost:~# ping 1.1.1.1
PING 1.1.1.1 (1.1.1.1): 56 data bytes
64 bytes from 1.1.1.1: seq=0 ttl=63 time=2.247 ms
64 bytes from 1.1.1.1: seq=1 ttl=63 time=1.761 ms
^C
--- 1.1.1.1 ping statistics ---
2 packets transmitted, 2 packets received, 0% packet loss
round-trip min/avg/max = 1.761/2.004/2.247 ms
localhost:~#
openEuler 是由开放原子开源基金会孵化的全场景开源操作系统项目，面向数字基础设施四大核心场景（服务器、云计算、边缘计算、嵌入式），全面支持 ARM、x86、RISC-V、loongArch、PowerPC、SW-64 等多样性计算架构
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