不能让DHCP在生成树中工作

Question

我不完全确定我做错了什么。我用我在主路由器中设置的DHCP池的IP地址配置了来自主路由器的VLAN间路由。我设置了生成树VLAN，甚至为生成树中的所有交换机添加了开关端口本机VLAN。我在第一台测试它的PC上增加了一个开关端口访问，但是它不起作用，我需要一些帮助。这是我的数据包跟踪文件：https://drive.google.com/file/d/1g6yE9gmgRWFj6gWLt-FYNAylYLyYyqPV/view?usp=sharing

这是网络的地图。没有一个电脑能得到DHCP。我也没有连接无线AP，因为我想确保个人电脑可以得到DHCP，首先。主路由器和2个主开关在MDF中，其余6个功能在以色列国防军。

路由器：

Building configuration...

Current configuration : 3910 bytes
!
version 15.1
no service timestamps log datetime msec
no service timestamps debug datetime msec
service password-encryption
!
hostname Router
!
!
!
enable password 7 0822404F1A0A
!
!
ip dhcp excluded-address 192.168.8.1 192.168.8.10
ip dhcp excluded-address 192.168.9.1 192.168.9.10
ip dhcp excluded-address 192.168.9.129 192.168.9.138
ip dhcp excluded-address 192.168.10.1 192.168.10.10
ip dhcp excluded-address 192.168.10.65 192.168.10.74
ip dhcp excluded-address 192.168.10.81 192.168.10.90
ip dhcp excluded-address 192.168.10.97 192.168.10.106
ip dhcp excluded-address 192.168.10.113 192.168.10.116
ip dhcp excluded-address 192.168.10.121 192.168.10.122
ip dhcp excluded-address 192.168.10.124 192.168.10.125
!
ip dhcp pool Students-ELEMENTARY-POOL
 network 192.168.8.0 255.255.255.0
 default-router 192.168.8.1
ip dhcp pool Wireless-ELEMENTARY-POOL
 network 192.168.9.0 255.255.255.128
 default-router 192.168.9.1
ip dhcp pool VoIP-ELEMENTARY-POOL
 network 192.168.9.128 255.255.255.128
 default-router 192.168.9.129
ip dhcp pool Faculty-ELEMENTARY-POOL
 network 192.168.10.0 255.255.255.192
 default-router 192.168.10.1
ip dhcp pool IP-Camera-ELEMENTARY-Pool
 network 192.168.10.64 255.255.255.240
 default-router 192.168.10.65
ip dhcp pool Admin-ELEMENTARY-POOL
 network 192.168.10.80 255.255.255.240
 default-router 192.168.10.81
ip dhcp pool Printer-ELEMENTARY-POOL
 network 192.168.10.96 255.255.255.240
 default-router 192.168.10.97
ip dhcp pool Staff-ELEMENTARY-POOL
 network 192.168.10.112 255.255.255.248
 default-router 192.168.10.113
ip dhcp pool Management-ELEMENTARY-POOL
 network 192.168.10.120 255.255.255.252
 default-router 192.168.10.121
ip dhcp pool Native-ELEMENTARY-POOL
 network 192.168.10.124 255.255.255.252
 default-router 192.168.10.125
!
!
!
no ip cef
no ipv6 cef
!
!
!
!
license udi pid CISCO2901/K9 sn FTX1524EIIO
!
!
!
!
!
!
!
!
!
no ip domain-lookup
!
!
spanning-tree mode pvst
!
!
!
!
!
!
interface GigabitEthernet0/0
 description MCE_MDF_Router to MCE_MDF_CoreSW1
 no ip address
 duplex auto
 speed auto
!
interface GigabitEthernet0/0.10
 encapsulation dot1Q 10
 ip address 192.168.10.81 255.255.255.240
!
interface GigabitEthernet0/0.20
 encapsulation dot1Q 20
 ip address 192.168.8.1 255.255.255.0
!
interface GigabitEthernet0/0.30
 encapsulation dot1Q 30
 ip address 192.168.10.113 255.255.255.248
!
interface GigabitEthernet0/0.40
 encapsulation dot1Q 40
 ip address 192.168.10.1 255.255.255.192
!
interface GigabitEthernet0/0.50
 encapsulation dot1Q 50
 ip address 192.168.10.97 255.255.255.240
!
interface GigabitEthernet0/0.60
 encapsulation dot1Q 60
 ip address 192.168.9.1 255.255.255.128
!
interface GigabitEthernet0/0.70
 encapsulation dot1Q 70
 ip address 192.168.9.129 255.255.255.128
!
interface GigabitEthernet0/0.80
 encapsulation dot1Q 80
 ip address 192.168.10.121 255.255.255.252
!
interface GigabitEthernet0/0.88
 encapsulation dot1Q 88
 ip address 192.168.10.65 255.255.255.240
!
interface GigabitEthernet0/0.99
 encapsulation dot1Q 99 native
 ip address 192.168.10.125 255.255.255.252
!
interface GigabitEthernet0/1
 no ip address
 duplex auto
 speed auto
!
interface GigabitEthernet0/1.10
 encapsulation dot1Q 10
 no ip address
!
interface GigabitEthernet0/1.20
 encapsulation dot1Q 20
 no ip address
!
interface GigabitEthernet0/1.99
 encapsulation dot1Q 99 native
 no ip address
!
interface Serial0/0/0
 no ip address
 clock rate 2000000
 shutdown
!
interface Serial0/0/1
 no ip address
 clock rate 2000000
 shutdown
!
interface Vlan1
 no ip address
 shutdown
!
ip classless
!
ip flow-export version 9
!
!
!
no cdp run
!
banner motd ^CNo Unauthorized Access^C
!
!
!
!
line con 0
 exec-timeout 15 0
 password 7 0822455D0A16
 logging synchronous
 login
!
line aux 0
!
line vty 0 4
 exec-timeout 15 0
 password 7 0822455D0A16
 logging synchronous
 login
line vty 5 15
 exec-timeout 15 0
 password 7 0822455D0A16
 logging synchronous
 login
!
!
!
end

MDF开关核心1：

Building configuration...

Current configuration : 3369 bytes
!
version 12.2
no service timestamps log datetime msec
no service timestamps debug datetime msec
no service password-encryption
!
hostname Switch
!
!
!
!
!
spanning-tree mode pvst
spanning-tree extend system-id
spanning-tree vlan 10,20,30,40,50,60 priority 24576
spanning-tree vlan 70,80,88,99 priority 28672
!
interface FastEthernet0/1
 description MCE_MDF_CoreSw1 to MCE_IDF_Switch1_STUDENT
 switchport trunk native vlan 99
 switchport mode trunk
 switchport nonegotiate
!
interface FastEthernet0/2
 description MCE_MDF_CoreSw1 to MCE_IDF_Switch2
 switchport access vlan 80
 switchport trunk native vlan 99
 switchport mode trunk
!
interface FastEthernet0/3
 description MCE_MDF_CoreSw1 to MCE_IDF_Switch3
 switchport access vlan 88
 switchport trunk native vlan 99
 switchport mode trunk
!
interface FastEthernet0/4
 description MCE_MDF_CoreSw1 to MCE_IDF_Switch4
 switchport trunk native vlan 99
 switchport mode trunk
!
interface FastEthernet0/5
 description MCE_MDF_CoreSw1 to MCE_IDF_Switch5
 switchport trunk native vlan 99
 switchport mode trunk
!
interface FastEthernet0/6
 description MCE_MDF_CoreSw1 to MCE_IDF_Switch6
 switchport trunk native vlan 99
 switchport trunk allowed vlan 10
 switchport mode trunk
!
interface FastEthernet0/7
 switchport trunk native vlan 99
 switchport mode trunk
!
interface FastEthernet0/8
 switchport trunk native vlan 99
 switchport mode trunk
!
interface FastEthernet0/9
 switchport trunk native vlan 99
 switchport mode trunk
!
interface FastEthernet0/10
 switchport trunk native vlan 99
 switchport mode trunk
!
interface FastEthernet0/11
 switchport trunk native vlan 99
 switchport mode trunk
!
interface FastEthernet0/12
 switchport trunk native vlan 99
 switchport mode trunk
!
interface FastEthernet0/13
 switchport trunk native vlan 99
 switchport mode trunk
!
interface FastEthernet0/14
 switchport trunk native vlan 99
 switchport mode trunk
!
interface FastEthernet0/15
 switchport trunk native vlan 99
 switchport mode trunk
!
interface FastEthernet0/16
 switchport trunk native vlan 99
 switchport mode trunk
!
interface FastEthernet0/17
 switchport trunk native vlan 99
 switchport mode trunk
!
interface FastEthernet0/18
 switchport trunk native vlan 99
 switchport mode trunk
!
interface FastEthernet0/19
 switchport trunk native vlan 99
 switchport mode trunk
!
interface FastEthernet0/20
 switchport trunk native vlan 99
 switchport mode trunk
!
interface FastEthernet0/21
 switchport trunk native vlan 99
 switchport mode trunk
!
interface FastEthernet0/22
 switchport trunk native vlan 99
 switchport mode trunk
!
interface FastEthernet0/23
 switchport trunk native vlan 99
 switchport mode trunk
!
interface FastEthernet0/24
 switchport access vlan 60
 switchport trunk native vlan 99
 switchport mode trunk
 switchport port-security maximum 60
 switchport port-security violation restrict 
!
interface GigabitEthernet0/1
 description MCE_MDF_CoreSw1 to MCE_MDF_Router
 switchport trunk native vlan 99
 switchport mode trunk
!
interface GigabitEthernet0/2
 description MCE_MDF_CoreSw1 to MCE_MDF_CoreSw2
 switchport trunk native vlan 99
 switchport mode trunk
!
interface Vlan1
 no ip address
 shutdown
!
interface Vlan80
 mac-address 0002.17d4.6101
 ip address 192.168.10.122 255.255.255.248
!
ip default-gateway 192.168.10.125
!
!
!
!
line con 0
!
line vty 0 4
 login
line vty 5 15
 login
!
!
!
end

MDF开关核心2：

Building configuration...

Current configuration : 3056 bytes
!
version 12.2
no service timestamps log datetime msec
no service timestamps debug datetime msec
no service password-encryption
!
hostname Switch
!
!
!
!
!
no spanning-tree vlan 10,60
spanning-tree mode pvst
spanning-tree extend system-id
spanning-tree vlan 70,80,88,99 priority 24576
spanning-tree vlan 10,20,30,40,50,60 priority 28672
!
interface FastEthernet0/1
 switchport access vlan 10
 switchport trunk native vlan 99
 switchport mode trunk
!
interface FastEthernet0/2
 switchport access vlan 20
 switchport trunk native vlan 99
 switchport mode trunk
!
interface FastEthernet0/3
 switchport access vlan 30
 switchport trunk native vlan 99
 switchport mode trunk
!
interface FastEthernet0/4
 switchport access vlan 40
 switchport trunk native vlan 99
 switchport mode trunk
!
interface FastEthernet0/5
 switchport access vlan 50
 switchport trunk native vlan 99
 switchport mode trunk
!
interface FastEthernet0/6
 switchport access vlan 60
 switchport trunk native vlan 99
 switchport mode trunk
!
interface FastEthernet0/7
 switchport trunk native vlan 99
 switchport mode trunk
!
interface FastEthernet0/8
 switchport trunk native vlan 99
 switchport mode trunk
!
interface FastEthernet0/9
 switchport trunk native vlan 99
 switchport mode trunk
!
interface FastEthernet0/10
 switchport trunk native vlan 99
 switchport mode trunk
!
interface FastEthernet0/11
 switchport trunk native vlan 99
 switchport mode trunk
!
interface FastEthernet0/12
 switchport trunk native vlan 99
 switchport mode trunk
!
interface FastEthernet0/13
 switchport trunk native vlan 99
 switchport mode trunk
!
interface FastEthernet0/14
 switchport trunk native vlan 99
 switchport mode trunk
!
interface FastEthernet0/15
 switchport trunk native vlan 99
 switchport mode trunk
!
interface FastEthernet0/16
 switchport trunk native vlan 99
 switchport mode trunk
!
interface FastEthernet0/17
 switchport trunk native vlan 99
 switchport mode trunk
!
interface FastEthernet0/18
 switchport trunk native vlan 99
 switchport mode trunk
!
interface FastEthernet0/19
 switchport trunk native vlan 99
 switchport mode trunk
!
interface FastEthernet0/20
 switchport trunk native vlan 99
 switchport mode trunk
!
interface FastEthernet0/21
 switchport trunk native vlan 99
 switchport mode trunk
!
interface FastEthernet0/22
 switchport trunk native vlan 99
 switchport mode trunk
!
interface FastEthernet0/23
 switchport trunk native vlan 99
 switchport mode trunk
!
interface FastEthernet0/24
 switchport access vlan 60
 switchport trunk native vlan 99
 switchport mode trunk
 switchport port-security maximum 60
 switchport port-security violation restrict 
!
interface GigabitEthernet0/1
 switchport trunk native vlan 99
 switchport mode trunk
!
interface GigabitEthernet0/2
 switchport trunk native vlan 99
 switchport mode trunk
!
interface Vlan1
 no ip address
 shutdown
!
interface Vlan80
 mac-address 0007.ecb7.0001
 ip address 192.168.10.123 255.255.255.248
!
ip default-gateway 192.168.10.125
!
!
!
!
line con 0
!
line vty 0 4
 login
line vty 5 15
 login
!
!
!
end

以色列国防军开关：

Building configuration...

Current configuration : 3363 bytes
!
version 12.2
no service timestamps log datetime msec
no service timestamps debug datetime msec
no service password-encryption
!
hostname Switch
!
!
!
!
!
spanning-tree mode pvst
spanning-tree extend system-id
!
interface FastEthernet0/1
 description MCE_IDF1_Switch1_STUDENT to PC0
 switchport access vlan 20
 switchport trunk native vlan 99
 switchport mode access
!
interface FastEthernet0/2
 switchport access vlan 20
 switchport trunk native vlan 99
 switchport mode access
!
interface FastEthernet0/3
 switchport access vlan 20
 switchport trunk native vlan 99
 switchport mode access
!
interface FastEthernet0/4
 switchport access vlan 20
 switchport trunk native vlan 99
 switchport mode access
!
interface FastEthernet0/5
 switchport access vlan 20
 switchport trunk native vlan 99
 switchport mode access
!
interface FastEthernet0/6
 switchport access vlan 20
 switchport trunk native vlan 99
 switchport mode access
!
interface FastEthernet0/7
 switchport access vlan 20
 switchport trunk native vlan 99
 switchport mode access
!
interface FastEthernet0/8
 switchport access vlan 20
 switchport trunk native vlan 99
 switchport mode access
!
interface FastEthernet0/9
 switchport access vlan 20
 switchport trunk native vlan 99
 switchport mode access
!
interface FastEthernet0/10
 switchport access vlan 20
 switchport trunk native vlan 99
 switchport mode access
!
interface FastEthernet0/11
 switchport access vlan 20
 switchport trunk native vlan 99
 switchport mode access
!
interface FastEthernet0/12
 switchport access vlan 20
 switchport trunk native vlan 99
 switchport mode access
!
interface FastEthernet0/13
 switchport access vlan 20
 switchport trunk native vlan 99
 switchport mode access
!
interface FastEthernet0/14
 switchport access vlan 20
 switchport trunk native vlan 99
 switchport mode access
!
interface FastEthernet0/15
 switchport access vlan 20
 switchport trunk native vlan 99
 switchport mode access
!
interface FastEthernet0/16
 switchport access vlan 20
 switchport trunk native vlan 99
 switchport mode access
!
interface FastEthernet0/17
 switchport access vlan 20
 switchport trunk native vlan 99
 switchport mode access
!
interface FastEthernet0/18
 switchport access vlan 20
 switchport trunk native vlan 99
 switchport mode access
!
interface FastEthernet0/19
 switchport access vlan 20
 switchport trunk native vlan 99
 switchport mode access
!
interface FastEthernet0/20
 switchport access vlan 20
 switchport trunk native vlan 99
 switchport mode access
!
interface FastEthernet0/21
 switchport access vlan 20
 switchport trunk native vlan 99
 switchport mode access
!
interface FastEthernet0/22
 switchport access vlan 20
 switchport trunk native vlan 99
 switchport mode access
!
interface FastEthernet0/23
 switchport access vlan 20
 switchport trunk native vlan 99
 switchport mode access
!
interface FastEthernet0/24
 switchport access vlan 20
 switchport trunk native vlan 99
 switchport mode access
!
interface GigabitEthernet0/1
 description MCE_IDF1_Switch1_STUDENT to MCE_MDF_CoreSw1
 switchport trunk native vlan 99
 switchport mode trunk
!
interface GigabitEthernet0/2
 description MCE_IDF1_Switch1_STUDENT to MCE_MDF_CoreSw2
 switchport trunk native vlan 99
 switchport mode trunk
!
interface Vlan1
 no ip address
 shutdown
!
!
!
!
line con 0
!
line vty 0 4
 login
line vty 5 15
 login
!
!
!
end

来自路由器的CDP：

Capability Codes: R - Router, T - Trans Bridge, B - Source Route Bridge
                  S - Switch, H - Host, I - IGMP, r - Repeater, P - Phone
Device ID    Local Intrfce   Holdtme    Capability   Platform    Port ID

来自核心交换机1的CDP：

Capability Codes: R - Router, T - Trans Bridge, B - Source Route Bridge
                  S - Switch, H - Host, I - IGMP, r - Repeater, P - Phone
Device ID    Local Intrfce   Holdtme    Capability   Platform    Port ID

来自核心交换机2的CDP：

Capability Codes: R - Router, T - Trans Bridge, B - Source Route Bridge
                  S - Switch, H - Host, I - IGMP, r - Repeater, P - Phone
Device ID    Local Intrfce   Holdtme    Capability   Platform    Port ID
Switch       Gig 0/2          141            S       2960        Gig 0/2

以色列国防军开关1(学生)的CDP：

Capability Codes: R - Router, T - Trans Bridge, B - Source Route Bridge
                  S - Switch, H - Host, I - IGMP, r - Repeater, P - Phone
Device ID    Local Intrfce   Holdtme    Capability   Platform    Port ID
Switch       Gig 0/2          177            S       2960        Fas 0/1

MDF核心交换机1上VLAN 10的生成树：

VLAN0010
  Spanning tree enabled protocol ieee
  Root ID    Priority    24586
             Address     0002.17D4.61B6
             This bridge is the root
             Hello Time  2 sec  Max Age 20 sec  Forward Delay 15 sec

  Bridge ID  Priority    24586  (priority 24576 sys-id-ext 10)
             Address     0002.17D4.61B6
             Hello Time  2 sec  Max Age 20 sec  Forward Delay 15 sec
             Aging Time  20

Interface        Role Sts Cost      Prio.Nbr Type
---------------- ---- --- --------- -------- --------------------------------
Fa0/2            Desg FWD 19        128.2    P2p
Fa0/3            Desg FWD 19        128.3    P2p
Fa0/4            Desg FWD 19        128.4    P2p
Fa0/1            Desg FWD 19        128.1    P2p
Fa0/5            Desg FWD 19        128.5    P2p
Fa0/6            Desg FWD 19        128.6    P2p
Gi0/2            Desg FWD 4         128.26   P2p
Gi0/1            Desg FWD 4         128.25   P2p

Answer 1

你确定第一层一切正常吗？我会从那里开始，如果在路由器和第一个核心交换机之间没有禁用cdp，那么您就会遇到l1问题。

检查端口计数器，尝试其他电缆-即使这表明它已经启动。路由器和交换机之间的电缆长度是多少？如果路由器从其核心交换机面向端口处了解到任何信息，请检查arp，同时检查交换机侧的mac地址表，以确定路由器面向端口。如果它是空的，那么您肯定有一个L1问题。

要在此配置中获得DHCP服务器，您需要确保从终端设备到路由器有一个完整有效的L2路径。

否则，您可以使用ip助手。