结合各网络技术模块的知识，完成中小企业网络项目作为学习成果的检验和总结。

公司由总经理办公室、财务部、研发部、人力资源部四个部门组成。 具体要求包括以下几点： 1.R&D部是一个重要的部门，禁止其部门人员访问外网，以确保R&D信息不泄露。 。 2.为各部门设置VLAN，总经理室VLAN可与各部门互通网络，不允许与其他部门互通VLAN 20网络互通。 3、公司架设Web服务器，对Internet提供公司形象和电子商务服务。 四、确保安全，Internet公司内部网络之间应采取防护措施，防止外界未经授权访问内部网络。

 # sysname LSW5 # vlan batch 10 20 # interface Vlanif1 # interface MEth0/0/1 # interface Ethernet0/0/1  port link-type access  port default vlan 10 # interface Ethernet0/0/2  port link-type access  port default vlan 20 # interface Ethernet0/0/3  port link-type trunk  port trunk allow-pass vlan 2 to 4094 # 

 # sysname LSW6 # vlan batch 30 40 # interface Vlanif1 # interface MEth0/0/1 # interface Ethernet0/0/1  port link-type access  port default vlan 30 # interface Ethernet0/0/2  port link-type access  port default vlan 40 # interface Ethernet0/0/3  port link-type trunk  port trunk allow-pass vlan 2 to 4094 #  

 # sysname LSW3 # vlan batch 10 20
#
cluster enable
ntdp enable
ndp enable
#
drop illegal-mac alarm
#
diffserv domain default
#
stp region-configuration
 region-name huawei.com
 instance 1 vlan 10 20 
 instance 2 vlan 30 40 
 active region-configuration
#
interface Vlanif1
#
interface MEth0/0/1
#
interface GigabitEthernet0/0/1
 port link-type trunk
 port trunk allow-pass vlan 2 to 4094
#
interface GigabitEthernet0/0/2
 port link-type trunk
 port trunk allow-pass vlan 2 to 4094
#
interface GigabitEthernet0/0/3
 port link-type trunk
 port trunk allow-pass vlan 2 to 4094
#

#
sysname LSW4
#
vlan batch 30 40
#
stp region-configuration
 region-name huawei.com
 instance 1 vlan 10 20 
 instance 2 vlan 30 40 
 active region-configuration
#
interface Vlanif1
#
interface MEth0/0/1
#
interface GigabitEthernet0/0/1
 port link-type trunk
 port trunk allow-pass vlan 2 to 4094
#
interface GigabitEthernet0/0/2
 port link-type trunk
 port trunk allow-pass vlan 2 to 4094
#
interface GigabitEthernet0/0/3
 port link-type trunk
 port trunk allow-pass vlan 2 to 4094
#

#
sysname LSW1
#
vlan batch 10 20 30 40 50 60 70 80 90
#
stp instance 1 root primary
stp instance 2 root secondary
#
lacp priority 100
#
cluster enable
ntdp enable
ndp enable
#
drop illegal-mac alarm
#
dhcp enable
#
diffserv domain default
#
stp region-configuration
 region-name huawei.com
 instance 1 vlan 10 20 
 instance 2 vlan 30 40 
 active region-configuration
#
acl number 3001  
 rule 5 deny ip source 192.168.30.0 0.0.0.255 destination 192.168.20.0 0.0.0.255 
 rule 10 deny ip source 192.168.40.0 0.0.0.255 destination 192.168.20.0 0.0.0.255 
#
traffic classifier tcl operator and
 if-match acl 3001
#
traffic behavior tbl
 deny
#
traffic policy tpl
 classifier tcl behavior tbl
#
drop-profile default
#
ip pool pool1
 gateway-list 192.168.10.254 
 network 192.168.10.0 mask 255.255.255.0 
 dns-list 114.114.114.114 
#
ip pool pool2
 gateway-list 192.168.20.254 
 network 192.168.20.0 mask 255.255.255.0 
 dns-list 114.114.114.114 
#
ip pool pool3
 gateway-list 192.168.30.254 
 network 192.168.30.0 mask 255.255.255.0 
 dns-list 114.114.114.114 
#
ip pool pool4
 gateway-list 192.168.40.254 
 network 192.168.40.0 mask 255.255.255.0 
 dns-list 114.114.114.114 
#
aaa 
 authentication-scheme default
 authorization-scheme default
 accounting-scheme default
 domain default 
 domain default_admin 
 local-user admin password simple admin
 local-user admin service-type http
#
interface Vlanif1
#
interface Vlanif10
 ip address 192.168.10.1 255.255.255.0 
 vrrp vrid 10 virtual-ip 192.168.10.254
 vrrp vrid 10 priority 120
 vrrp vrid 10 preempt-mode timer delay 5
 vrrp vrid 10 track interface GigabitEthernet0/0/6 reduced 30
 dhcp select global
#
interface Vlanif20
 ip address 192.168.20.1 255.255.255.0 
 vrrp vrid 20 virtual-ip 192.168.20.254
 vrrp vrid 20 priority 120
 vrrp vrid 20 preempt-mode timer delay 5
 vrrp vrid 20 track interface GigabitEthernet0/0/6 reduced 30
 dhcp select global
#
interface Vlanif30
 ip address 192.168.30.1 255.255.255.0 
 vrrp vrid 30 virtual-ip 192.168.30.254
 dhcp select global
#
interface Vlanif40
 ip address 192.168.40.1 255.255.255.0 
 vrrp vrid 40 virtual-ip 192.168.40.254
 dhcp select global
#
interface Vlanif50
 ip address 192.168.50.1 255.255.255.0 
#
interface Vlanif60
 ip address 192.168.60.1 255.255.255.0 
#
interface Vlanif70
#
interface Vlanif80
 ip address 192.168.5.1 255.255.255.0 
#
interface Vlanif90
 ip address 192.168.4.1 255.255.255.0 
#
interface MEth0/0/1
#
interface Eth-Trunk1
 traffic-policy tpl inbound
 mode lacp-static
 least active-linknumber 2
 max bandwidth-affected-linknumber 3
 load-balance dst-ip
 lacp timeout fast
 lacp preempt enable
 max active-linknumber 2
 lacp preempt delay 20
 lacp selected speed
#
interface GigabitEthernet0/0/1
 port link-type trunk
 port trunk allow-pass vlan 2 to 4094
 traffic-policy tpl outbound
#
interface GigabitEthernet0/0/2
 port link-type trunk
 port trunk allow-pass vlan 2 to 4094
#
interface GigabitEthernet0/0/3
 eth-trunk 1
#
interface GigabitEthernet0/0/4
 eth-trunk 1
#
interface GigabitEthernet0/0/5
 eth-trunk 1
 lacp priority 100
#
interface GigabitEthernet0/0/6
 shutdown
 port link-type trunk
 port trunk pvid vlan 60
 port trunk allow-pass vlan 2 to 4094
#
interface GigabitEthernet0/0/7
 port link-type trunk
 port trunk allow-pass vlan 2 to 4094
#
ip route-static 0.0.0.0 0.0.0.0 192.168.60.2
ip route-static 192.168.4.0 255.255.255.0 192.168.50.2
ip route-static 192.168.5.0 255.255.255.0 192.168.50.2
ip route-static 192.168.30.0 255.255.255.0 192.168.50.2
ip route-static 192.168.40.0 255.255.255.0 192.168.50.2
#
user-interface con 0
user-interface vty 0 4
#
port-group link-type
#
port-group tr
#
return 

#
sysname LSW2
#
vlan batch 10 20 30 40 50 60 70 80 90
#
stp instance 1 root secondary
stp instance 2 root primary
#
lacp priority 100
#
cluster enable
ntdp enable
ndp enable
#
drop illegal-mac alarm
#
dhcp enable
#
diffserv domain default
#
stp region-configuration
 region-name huawei.com
 instance 1 vlan 10 20 
 instance 2 vlan 30 40 
 active region-configuration
#
acl number 3002  
 rule 5 deny ip source 192.168.20.0 0.0.0.255 destination 192.168.30.0 0.0.0.255 
 rule 10 deny ip source 192.168.20.0 0.0.0.255 destination 192.168.40.0 0.0.0.255 
#
traffic classifier tcl operator and
 if-match acl 3002
#
traffic behavior tbl
 deny
#
traffic policy tpl
 classifier tcl behavior tbl
#
drop-profile default
#
dhcp server group dhcpgroup3 
 dhcp-server 192.168.30.252 0
#
dhcp server group dhcpgroup4 
 dhcp-server 192.168.40.252 0
#
aaa 
 authentication-scheme default
 authorization-scheme default
 accounting-scheme default
 domain default 
 domain default_admin 
 local-user admin password simple admin
 local-user admin service-type http
#
interface Vlanif1
#
interface Vlanif10
 ip address 192.168.10.1 255.255.255.0 
 vrrp vrid 10 virtual-ip 192.168.10.254
#
interface Vlanif20
 ip address 192.168.20.1 255.255.255.0 
 vrrp vrid 20 virtual-ip 192.168.20.254
#
interface Vlanif30
 ip address 192.168.30.1 255.255.255.0 
 vrrp vrid 30 virtual-ip 192.168.30.254
 vrrp vrid 30 priority 120
 vrrp vrid 30 preempt-mode timer delay 5
 vrrp vrid 30 track interface GigabitEthernet0/0/6 reduced 30
 dhcp select relay
 dhcp relay server-select dhcpgroup3
#
interface Vlanif40
 ip address 192.168.40.1 255.255.255.0 
 vrrp vrid 40 virtual-ip 192.168.40.254
 vrrp vrid 40 priority 120
 vrrp vrid 40 preempt-mode timer delay 5
 vrrp vrid 40 track interface GigabitEthernet0/0/6 reduced 30
 dhcp select relay
 dhcp relay server-select dhcpgroup4
#
interface Vlanif50
 ip address 192.168.50.2 255.255.255.0 
#
interface Vlanif60
#
interface Vlanif70
 ip address 192.168.70.1 255.255.255.0 
#
interface Vlanif80
 ip address 192.168.5.1 255.255.255.0 
#
interface Vlanif90
 ip address 192.168.4.1 255.255.255.0 
#
interface MEth0/0/1
#
interface Eth-Trunk1
 traffic-policy tpl inbound
 mode lacp-static
 least active-linknumber 2
 max bandwidth-affected-linknumber 3
 load-balance dst-ip
 lacp timeout fast
 lacp preempt enable
 max active-linknumber 2
 lacp preempt delay 20
 lacp selected speed
#
interface GigabitEthernet0/0/1
 port link-type trunk
 port trunk allow-pass vlan 2 to 4094
 traffic-policy tpl outbound
#
interface GigabitEthernet0/0/2
 port link-type trunk
 port trunk allow-pass vlan 2 to 4094
#
interface GigabitEthernet0/0/3
 eth-trunk 1
#
interface GigabitEthernet0/0/4
 eth-trunk 1
#
interface GigabitEthernet0/0/5
 eth-trunk 1
 lacp priority 100
#
interface GigabitEthernet0/0/6
 port link-type trunk
 port trunk pvid vlan 70
 port trunk allow-pass vlan 2 to 4094
#
interface GigabitEthernet0/0/7
 port link-type trunk
 port trunk allow-pass vlan 2 to 4094
#
ip route-static 0.0.0.0 0.0.0.0 192.168.70.2
ip route-static 192.168.4.0 255.255.255.0 192.168.50.1
ip route-static 192.168.5.0 255.255.255.0 192.168.50.1
ip route-static 192.168.10.0 255.255.255.0 192.168.50.1
ip route-static 192.168.20.0 255.255.255.0 192.168.50.1
#

!Software Version V500R005C10SPC300
!Last configuration was saved at 2022-05-26 15:55:45 UTC
#
sysname FW1
#
 l2tp domain suffix-separator @
#
 ipsec sha2 compatible enable 
#
undo telnet server enable
undo telnet ipv6 server enable
#
clock timezone UTC add 00:00:00
#
 update schedule location-sdb weekly Sun 23:55
#
 firewall defend action discard
#
 banner enable
#
 user-manage web-authentication security port 8887
 undo privacy-statement english
 undo privacy-statement chinese
page-setting
 user-manage security version tlsv1.1 tlsv1.2
password-policy
 level high
user-manage single-sign-on ad
user-manage single-sign-on tsm
user-manage single-sign-on radius
user-manage auto-sync online-user
#
 web-manager security version tlsv1.1 tlsv1.2
 web-manager enable
 web-manager security enable
#
firewall dataplane to manageplane application-apperceive default-action drop
#
 undo ips log merge enable
#
 decoding uri-cache disable
#
 update schedule ips-sdb daily 06:18
 update schedule av-sdb daily 06:18
 update schedule sa-sdb daily 06:18
 update schedule cnc daily 06:18
 update schedule file-reputation daily 06:18
#
ip vpn-instance default
 ipv4-family
#
 time-range worktime
  period-range 08:00:00 to 18:00:00 working-day   
#
ike proposal default
 encryption-algorithm aes-256 aes-192 aes-128 
 dh group14 
 authentication-algorithm sha2-512 sha2-384 sha2-256 
 authentication-method pre-share
 integrity-algorithm hmac-sha2-256 
 prf hmac-sha2-256 
#
aaa
 authentication-scheme default
 authentication-scheme admin_local
 authentication-scheme admin_radius_local
 authentication-scheme admin_hwtacacs_local
 authentication-scheme admin_ad_local
 authentication-scheme admin_ldap_local
 authentication-scheme admin_radius
 authentication-scheme admin_hwtacacs
 authentication-scheme admin_ad
 authorization-scheme default
 accounting-scheme default
 domain default
  service-type internetaccess ssl-vpn l2tp ike
  internet-access mode password
  reference user current-domain
 manager-user audit-admin 
  password cipher @%@%Ow!DI`"k1Gdu<:1aM(OKe-:"*~/X"^l>lR~|GX8OT)ZJ-:%e@%@%
  service-type web terminal 
  level 15 

 manager-user api-admin 
  password cipher @%@%_Rbd1-w5N%|b{ 
        *IJL:z-v{ 
        ,nKX/eDwh<;X=wr^!ty:k<{ 
        ,qv@%@%
  level 15 

 manager-user admin 
  password cipher @%@%/]]t)jlgx4MS%:EOdw!@5=eE(J9D()1~sN\Li8OC^PCR=eH5@%@%
  service-type web terminal 
  level 15 

 role system-admin
 role device-admin
 role device-admin(monitor)
 role audit-admin
 bind manager-user audit-admin role audit-admin
 bind manager-user admin role system-admin
#
l2tp-group default-lns
#
interface GigabitEthernet0/0/0
 undo shutdown
 ip binding vpn-instance default
 ip address 192.168.0.1 255.255.255.0
 alias GE0/METH
#
interface GigabitEthernet1/0/0
 undo shutdown
 ip address 192.168.70.2 255.255.255.0
 service-manage http permit
 service-manage https permit
 service-manage ping permit
 service-manage ssh permit
 service-manage snmp permit
 service-manage telnet permit
#
interface GigabitEthernet1/0/1
 undo shutdown
 ip address 221.1.1.1 255.255.255.0
 service-manage http permit
 service-manage https permit
 service-manage ping permit
 service-manage ssh permit
 service-manage snmp permit
 service-manage telnet permit
#
interface GigabitEthernet1/0/2
 undo shutdown
 ip address 192.168.60.2 255.255.255.0
 service-manage http permit
 service-manage https permit
 service-manage ping permit
 service-manage ssh permit
 service-manage snmp permit
 service-manage telnet permit
#
interface Virtual-if0
#
interface NULL0
#
firewall zone local
 set priority 100
#
firewall zone trust
 set priority 85
 add interface GigabitEthernet0/0/0
 add interface GigabitEthernet1/0/0
 add interface GigabitEthernet1/0/2
#
firewall zone untrust
 set priority 5
 add interface GigabitEthernet1/0/1
#
firewall zone dmz
 set priority 50
#
ip route-static 0.0.0.0 0.0.0.0 221.1.1.2
ip route-static 192.168.4.0 255.255.255.0 192.168.60.1
ip route-static 192.168.4.0 255.255.255.0 192.168.70.1 preference 70
ip route-static 192.168.5.0 255.255.255.0 192.168.60.1
ip route-static 192.168.5.0 255.255.255.0 192.168.70.1 preference 70
ip route-static 192.168.10.0 255.255.255.0 192.168.60.1
ip route-static 192.168.10.0 255.255.255.0 192.168.70.1 preference 70
ip route-static 192.168.30.0 255.255.255.0 192.168.70.1
ip route-static 192.168.40.0 255.255.255.0 192.168.70.1
#
undo ssh server compatible-ssh1x enable
ssh authentication-type default password
ssh server cipher aes256_ctr aes128_ctr
ssh server hmac sha2_256 sha1
ssh client cipher aes256_ctr aes128_ctr
ssh client hmac sha2_256 sha1
#
firewall detect ftp
#
user-interface con 0
 authentication-mode aaa
user-interface vty 0 4
 authentication-mode aaa
 protocol inbound ssh
user-interface vty 16 20
#
pki realm default
#
sa
#
location
#
multi-linkif
 mode proportion-of-weight
#
right-manager server-group
#
device-classification
 device-group pc
 device-group mobile-terminal
 device-group undefined-group
#
user-manage server-sync tsm
#
security-policy
 rule name p1
  source-zone trust
  destination-zone untrust
  source-address 192.168.10.0 mask 255.255.255.0
  source-address 192.168.30.0 mask 255.255.255.0
  source-address 192.168.40.0 mask 255.255.255.0
  action permit
 rule name p2
  source-zone untrust
  destination-zone trust
  destination-address 192.168.5.0 mask 255.255.255.0
  action permit
 rule name p3
  source-zone untrust
  destination-zone trust
  destination-address 192.168.4.0 mask 255.255.255.0
  action permit
#
nat-policy
 rule name policy_nat1
  source-zone trust
  destination-zone untrust
  source-address 192.168.10.0 mask 255.255.255.0
  source-address 192.168.30.0 mask 255.255.255.0
  source-address 192.168.40.0 mask 255.255.255.0
  action source-nat easy-ip
#
return  

测试项列表：

查看DHCP配置在各VLAN下是否生效：

将LSW1 G0/0/6口DOWN掉后，执行测试：

LSW1宕机后，执行测试：

VLAN（Virtual Local Area Network）即虚拟局域网，是将一个物理的LAN在逻辑上划分成多个广播域的通信技术。 每个VLAN是一个广播域，VLAN内的主机间可以直接通信，而VLAN间则不能直接互通。这样，广播报文就被限制在一个VLAN内。 通过应用VLAN技术，实现了： 限制广播域：广播域被限制在一个VLAN内，节省了带宽，提高了网络处理能力。 增强局域网的安全性：不同VLAN内的报文在传输时相互隔离，即一个VLAN内的用户不能和其它VLAN内的用户直接通信。 提高了网络健壮性：故障被限制在一个VLAN内，本VLAN内的故障不会影响其他VLAN的正常工作。 灵活构建虚拟工作组：用VLAN可以划分不同的用户到不同的工作组，同一工作组的用户也不必局限于某一固定的物理范围，网络构建和维护更方便灵活。

访问控制列表ACL（Access Control List）是由一条或多条规则组成的集合。所谓规则，是指描述报文匹配条件的判断语句，这些条件可以是报文的源地址、目的地址、端口号等。 ACL本质上是一种报文过滤器，规则是过滤器的滤芯。设备基于这些规则进行报文匹配，可以过滤出特定的报文，并根据应用ACL的业务模块的处理策略来允许或阻止该报文通过。如企业为保证研发数据安全，禁止除总经理室外主机访问研发部。

LACP（Link Aggregation Control Protocol，链路聚合控制协议）是一种基于IEEE802.3ad标准的实现链路动态聚合与解聚合的协议，它是链路聚合中常用的一种协议。链路聚合组中启用了LACP协议的成员端口通过发送LACPDU报文进行交互，双方对哪些端口能够发送和接收报文达成一致，确定承担业务流量的链路。此外，当聚合条件发生变化时，如某个链路发生故障，LACP模式会自动调整聚合组中的链路，组内其他可用成员链路接替故障链路维持负载平衡。这样在不进行硬件升级的情况下，可以增加设备之间的逻辑带宽，提高网络的可靠性。

动态主机配置协议DHCP（Dynamic Host Configuration Protocol）是一种网络管理协议，用于集中对用户IP地址进行动态管理和配置。 DHCP使网络管理员能从中心结点监控和分配IP地址。当某台计算机移到网络中的其它位置时，能自动收到新的IP地址。DHCP实现的自动化分配IP地址不仅降低了配置和部署设备的时间，同时也降低了发生配置错误的可能性。另外DHCP服务器可以管理多个网段的配置信息，当某个网段的配置发生变化时，管理员只需要更新DHCP服务器上的相关配置即可，实现了集中化管理。

虚拟路由冗余协议VRRP（Virtual Router Redundancy Protocol）是一种用于提高网络可靠性的容错协议。通过VRRP，可以在主机的下一跳设备出现故障时，及时将业务切换到备份设备，从而保障网络通信的连续性和可靠性。 VRRP将多台设备组成一个虚拟设备，通过配置虚拟设备的IP地址为缺省网关，实现缺省网关的备份。当网关设备发生故障时，VRRP机制能够选举新的网关设备承担数据流量，从而保障网络的可靠通信。 VRRP协议中定义了三种状态机：初始状态（Initialize）、活动状态（Master）、备份状态（Backup）。其中，只有处于Master状态的设备才可以转发那些发送到虚拟IP地址的报文。

多生成树协议MSTP（Multiple Spanning Tree Protocol）是IEEE 802.1s中定义的生成树协议，通过生成多个生成树，来解决以太网环路问题。形成多棵无环路的树，解决广播风暴并实现冗余备份。多棵生成树在VLAN间实现负载均衡，不同VLAN的流量按照不同的路径转发。