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S5500 交换机配置了三层功能，做dhcp服务，网线直连的电脑无法自动获取IP地址

2020-07-20提问

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问题描述：

S5500交换机做核心交换，做dhcp服务器，配置了VLAN1,VLAN10,VLAN20，三个VLAN，划分了三个与之对应的dhcp地址池，发现有线直接降电脑接到交换机上面无法自动获取到IP地址；交换机的详细配置如下，希望指点迷津[H3C]dis current-configuration # version 5.20, Release 2221P26 # sysname H3C # clock timezone Beijing add 08:00:00 # irf mac-address persistent timer irf auto-update enable undo irf link-delay # domain default enable system # telnet server enable # ip ttl-expires enable ip unreachables enable # loopback-detection enable # web idle-timeout 30 # password-recovery enable # vlan 1 # vlan 10 # vlan 20 # vlan 30 # domain system access-limit disable state active idle-cut disable self-service-url disable # dhcp server ip-pool vlan1 network 192.168.0.0 mask 255.255.255.0 gateway-list 192.168.0.1 dns-list 202.106.195.68 202.106.46.151 223.5.5.5 expired day 0 hour 8 # dhcp server ip-pool vlan10 network 192.168.10.0 mask 255.255.255.0 gateway-list 192.168.10.1 dns-list 202.106.195.68 223.5.5.5 180.76.76.76 expired day 0 hour 8 # dhcp server ip-pool vlan20 network 192.168.20.0 mask 255.255.255.0 gateway-list 192.168.20.1 dns-list 202.106.195.68 202.106.46.151 223.5.5.5 180.76.76.76 expired day 0 hour 8 # dhcp server ip-pool vlan30 network 192.168.30.0 mask 255.255.255.0 gateway-list 192.168.30.1 dns-list 223.5.5.5 223.6.6.6 180.76.76.76 expired day 0 hour 8 # user-group system authorization-attribute level 3 group-attribute allow-guest # local-user admin password cipher $c$3$UUCVZGbDzN73LQEwMHPDfftchk04ARkq authorization-attribute level 3 service-type telnet service-type web # user-profile privilege # interface NULL0 # interface Vlan-interface1 ip address 192.168.0.1 255.255.255.0 # interface Vlan-interface10 ip address 192.168.10.1 255.255.255.0 # interface Vlan-interface20 ip address 192.168.20.1 255.255.255.0 # interface Vlan-interface30 ip address 192.168.30.1 255.255.255.0 # interface GigabitEthernet1/0/24 port link-mode route ip address 192.168.2.2 255.255.255.0 # interface GigabitEthernet1/0/1 port link-mode bridge port access vlan 10 loopback-detection enable stp edged-port enable # interface GigabitEthernet1/0/2 port link-mode bridge port access vlan 10 loopback-detection enable stp edged-port enable # interface GigabitEthernet1/0/3 port link-mode bridge port access vlan 10 loopback-detection enable # interface GigabitEthernet1/0/4 port link-mode bridge port access vlan 10 loopback-detection enable # interface GigabitEthernet1/0/5 port link-mode bridge port access vlan 10 loopback-detection enable # interface GigabitEthernet1/0/6 port link-mode bridge port access vlan 10 loopback-detection enable # interface GigabitEthernet1/0/7 port link-mode bridge port access vlan 20 loopback-detection enable stp edged-port enable # interface GigabitEthernet1/0/8 port link-mode bridge port access vlan 20 loopback-detection enable stp edged-port enable # interface GigabitEthernet1/0/9 port link-mode bridge port access vlan 20 loopback-detection enable # interface GigabitEthernet1/0/10 port link-mode bridge port access vlan 20 loopback-detection enable # interface GigabitEthernet1/0/11 port link-mode bridge port access vlan 20 loopback-detection enable # interface GigabitEthernet1/0/12 port link-mode bridge port access vlan 20 loopback-detection enable # interface GigabitEthernet1/0/13 port link-mode bridge loopback-detection enable # interface GigabitEthernet1/0/14 port link-mode bridge loopback-detection enable # interface GigabitEthernet1/0/15 port link-mode bridge loopback-detection enable # interface GigabitEthernet1/0/16 port link-mode bridge loopback-detection enable # interface GigabitEthernet1/0/17 port link-mode bridge loopback-detection enable # interface GigabitEthernet1/0/18 port link-mode bridge loopback-detection enable # interface GigabitEthernet1/0/19 port link-mode bridge loopback-detection enable # interface GigabitEthernet1/0/20 port link-mode bridge loopback-detection enable # interface GigabitEthernet1/0/21 port link-mode bridge loopback-detection enable # interface GigabitEthernet1/0/22 port link-mode bridge loopback-detection enable # interface GigabitEthernet1/0/23 port link-mode bridge port link-type trunk port trunk permit vlan all loopback-detection enable loopback-detection control enable loopback-detection per-vlan enable # interface GigabitEthernet1/0/25 port link-mode bridge shutdown loopback-detection enable # interface GigabitEthernet1/0/26 port link-mode bridge shutdown loopback-detection enable # interface GigabitEthernet1/0/27 port link-mode bridge shutdown loopback-detection enable # interface GigabitEthernet1/0/28 port link-mode bridge shutdown loopback-detection enable # ip route-static 0.0.0.0 0.0.0.0 192.168.2.1 # dhcp server forbidden-ip 192.168.10.1 dhcp server forbidden-ip 192.168.20.1 dhcp server forbidden-ip 192.168.0.1 # dhcp enable # ntp-service source-interface GigabitEthernet1/0/24 # load xml-configuration # load tr069-configuration # user-interface aux 0 user-interface vty 0 4 authentication-mode scheme user-interface vty 5 15 # return

组网及组网描述：

[H3C]dis current-configuration

# version 5.20, Release 2221P26

# sysname H3C

# clock timezone Beijing add 08:00:00

# irf mac-address persistent timer irf auto-update enable undo irf link-delay

# domain default enable system

# telnet server enable

# ip ttl-expires enable ip unreachables enable

# loopback-detection enable

# web idle-timeout 30

# password-recovery enable

# vlan 1

# vlan 10

# vlan 20

# vlan 30

# domain system access-limit disable state active idle-cut disable self-service-url disable

# dhcp server ip-pool vlan1 network 192.168.0.0 mask 255.255.255.0 gateway-list 192.168.0.1 dns-list 202.106.195.68 202.106.46.151 223.5.5.5 expired day 0 hour 8

# dhcp server ip-pool vlan10 network 192.168.10.0 mask 255.255.255.0 gateway-list 192.168.10.1 dns-list 202.106.195.68 223.5.5.5 180.76.76.76 expired day 0 hour 8

# dhcp server ip-pool vlan20 network 192.168.20.0 mask 255.255.255.0 gateway-list 192.168.20.1 dns-list 202.106.195.68 202.106.46.151 223.5.5.5 180.76.76.76 expired day 0 hour 8

# dhcp server ip-pool vlan30 network 192.168.30.0 mask 255.255.255.0 gateway-list 192.168.30.1 dns-list 223.5.5.5 223.6.6.6 180.76.76.76 expired day 0 hour 8

# user-group system authorization-attribute level 3 group-attribute allow-guest

# local-user admin password cipher $c$3$UUCVZGbDzN73LQEwMHPDfftchk04ARkq authorization-attribute level 3 service-type telnet service-type web

# user-profile privilege

# interface NULL0

# interface Vlan-interface1 ip address 192.168.0.1 255.255.255.0

# interface Vlan-interface10 ip address 192.168.10.1 255.255.255.0

# interface Vlan-interface20 ip address 192.168.20.1 255.255.255.0

# interface Vlan-interface30 ip address 192.168.30.1 255.255.255.0

# interface GigabitEthernet1/0/24 port link-mode route ip address 192.168.2.2 255.255.255.0

# interface GigabitEthernet1/0/1 port link-mode bridge port access vlan 10 loopback-detection enable stp edged-port enable

# interface GigabitEthernet1/0/2 port link-mode bridge port access vlan 10 loopback-detection enable stp edged-port enable

# interface GigabitEthernet1/0/3 port link-mode bridge port access vlan 10 loopback-detection enable

# interface GigabitEthernet1/0/4 port link-mode bridge port access vlan 10 loopback-detection enable

# interface GigabitEthernet1/0/5 port link-mode bridge port access vlan 10 loopback-detection enable

# interface GigabitEthernet1/0/6 port link-mode bridge port access vlan 10 loopback-detection enable

# interface GigabitEthernet1/0/7 port link-mode bridge port access vlan 20 loopback-detection enable stp edged-port enable

# interface GigabitEthernet1/0/8 port link-mode bridge port access vlan 20 loopback-detection enable stp edged-port enable

# interface GigabitEthernet1/0/9 port link-mode bridge port access vlan 20 loopback-detection enable

# interface GigabitEthernet1/0/10 port link-mode bridge port access vlan 20 loopback-detection enable

# interface GigabitEthernet1/0/11 port link-mode bridge port access vlan 20 loopback-detection enable

# interface GigabitEthernet1/0/12 port link-mode bridge port access vlan 20 loopback-detection enable

# interface GigabitEthernet1/0/13 port link-mode bridge loopback-detection enable

# interface GigabitEthernet1/0/14 port link-mode bridge loopback-detection enable

# interface GigabitEthernet1/0/15 port link-mode bridge loopback-detection enable

# interface GigabitEthernet1/0/16 port link-mode bridge loopback-detection enable

# interface GigabitEthernet1/0/17 port link-mode bridge loopback-detection enable

# interface GigabitEthernet1/0/18 port link-mode bridge loopback-detection enable

# interface GigabitEthernet1/0/19 port link-mode bridge loopback-detection enable

# interface GigabitEthernet1/0/20 port link-mode bridge loopback-detection enable

# interface GigabitEthernet1/0/21 port link-mode bridge loopback-detection enable

# interface GigabitEthernet1/0/22 port link-mode bridge loopback-detection enable

# interface GigabitEthernet1/0/23 port link-mode bridge port link-type trunk port trunk permit vlan all loopback-detection enable loopback-detection control enable loopback-detection per-vlan enable

# interface GigabitEthernet1/0/25 port link-mode bridge shutdown loopback-detection enable

# interface GigabitEthernet1/0/26 port link-mode bridge shutdown loopback-detection enable

# interface GigabitEthernet1/0/27 port link-mode bridge shutdown loopback-detection enable

# interface GigabitEthernet1/0/28 port link-mode bridge shutdown loopback-detection enable

# ip route-static 0.0.0.0 0.0.0.0 192.168.2.1

# dhcp server forbidden-ip 192.168.10.1 dhcp server forbidden-ip 192.168.20.1 dhcp server forbidden-ip 192.168.0.1

# dhcp enable

# ntp-service source-interface GigabitEthernet1/0/24

# load xml-configuration

# load tr069-configuration

# user-interface aux 0 user-interface vty 0 4 authentication-mode scheme user-interface vty 5 15

# return