S5120V3-28P-LI做核心交换机，开启DHCP给用户分配IP，，第24口连接路由上网问题

   1-22口接PC，，划到vlan105  ；交换机已经开启DHCP，，给PC分配IP 192.168.105.0 24   ；

   24口接路由，自动获取192.168.101.0 24 网段的IP，，这里指定为192.168.101.80 ；

现场PC上不了网，，，不知道是什么问题。。

这个交换机配置：

<H3C>dis cur # version 7.1.070, Release 6329 # sysname H3C # irf mac-address persistent timer irf auto-update enable undo irf link-delay irf member 1 priority 1 # dhcp enable dhcp server forbidden-ip 192.168.105.1 dhcp server forbidden-ip 192.168.105.250 dhcp server forbidden-ip 192.168.105.251 dhcp server forbidden-ip 192.168.105.252 dhcp server forbidden-ip 192.168.105.253 dhcp server forbidden-ip 192.168.105.254 # dhcp snooping enable # lldp global enable # interface range name mypc interface GigabitEthernet1/0/1 to GigabitEthernet1/0/22 # password-recovery enable # vlan 1 # vlan 105 # stp global enable # dhcp server ip-pool 105 gateway-list 192.168.105.254 network 192.168.105.0 mask 255.255.255.0 dns-list 202.197.64.6 114.114.114.114 # interface NULL0 # interface Vlan-interface1 ip address 192.168.101.80 255.255.255.0 dhcp client identifier ascii 38a91cf51dab-VLAN0001 # interface Vlan-interface105 ip address 192.168.105.254 255.255.255.0 # interface GigabitEthernet1/0/1 port access vlan 105 dhcp snooping binding record # interface GigabitEthernet1/0/2 port access vlan 105 dhcp snooping binding record # interface GigabitEthernet1/0/3 port access vlan 105 dhcp snooping binding record # interface GigabitEthernet1/0/4 port access vlan 105 dhcp snooping binding record # interface GigabitEthernet1/0/5 port access vlan 105 dhcp snooping binding record # interface GigabitEthernet1/0/6 port access vlan 105 dhcp snooping binding record # interface GigabitEthernet1/0/7 port access vlan 105 dhcp snooping binding record # interface GigabitEthernet1/0/8 port access vlan 105 dhcp snooping binding record # interface GigabitEthernet1/0/9 port access vlan 105 dhcp snooping binding record # interface GigabitEthernet1/0/10 port access vlan 105 dhcp snooping binding record # interface GigabitEthernet1/0/11 port access vlan 105 dhcp snooping binding record # interface GigabitEthernet1/0/12 port access vlan 105 dhcp snooping binding record # interface GigabitEthernet1/0/13 port access vlan 105 dhcp snooping binding record # interface GigabitEthernet1/0/14 port access vlan 105 dhcp snooping binding record # interface GigabitEthernet1/0/15 port access vlan 105 dhcp snooping binding record # interface GigabitEthernet1/0/16 port access vlan 105 dhcp snooping binding record # interface GigabitEthernet1/0/17 port access vlan 105 dhcp snooping binding record # interface GigabitEthernet1/0/18 port access vlan 105 dhcp snooping binding record # interface GigabitEthernet1/0/19 port access vlan 105 dhcp snooping binding record # interface GigabitEthernet1/0/20 port access vlan 105 dhcp snooping binding record # interface GigabitEthernet1/0/21 port access vlan 105 dhcp snooping binding record # interface GigabitEthernet1/0/22 port access vlan 105 dhcp snooping binding record # interface GigabitEthernet1/0/23 port link-type trunk port trunk permit vlan all dhcp snooping trust # interface GigabitEthernet1/0/24 port link-type trunk port trunk permit vlan all # interface GigabitEthernet1/0/25 # interface GigabitEthernet1/0/26 # interface GigabitEthernet1/0/27 # interface GigabitEthernet1/0/28 # scheduler logfile size 16 # line class aux user-role network-admin # line class vty user-role network-operator # line aux 0 user-role network-admin # line vty 0 63 user-role network-operator # ip route-static 0.0.0.0 0 192.168.101.254 # radius scheme system user-name-format without-domain # domain system # domain default enable system # role name level-0 description Predefined level-0 role # role name level-1 description Predefined level-1 role # role name level-2 description Predefined level-2 role # role name level-3 description Predefined level-3 role # role name level-4 description Predefined level-4 role # role name level-5 description Predefined level-5 role # role name level-6 description Predefined level-6 role # role name level-7 description Predefined level-7 role # role name level-8 description Predefined level-8 role # role name level-9 description Predefined level-9 role # role name level-10 description Predefined level-10 role # role name level-11 description Predefined level-11 role # role name level-12 description Predefined level-12 role # role name level-13 description Predefined level-13 role # role name level-14 description Predefined level-14 role # user-group system # cloud-management server domain cloudnet.h3c.com # return <H3C>