Any guys can help me: Due to network expanding, I need allocate a new subnet 192.168.4.0 on our co lan. existing, 3 private LAN 192.168.1.0 (primary, connected all Windows AD server and internet devices). 192.168.2.0 and 3.0 are department LAN for user workstations. All user workstations on any networks got IP from Windows AD host 192.168.1.20. I used a new 6249 dell switch to configure a new VLAN 192.168.4.0, but user on this network could not get IP from the AD host. Could anyone give any advise? console>en console#show run !Current Configuration: !System Description "PowerConnect 6248, 3.3.10.3, VxWorks 6.5" !System Software Version 3.3.10.3 !Cut-through mode is configured as disabled ! configure vlan database vlan 4 vlan routing 4 1 exit stack member 1 2 exit ip address 192.168.1.221 255.255.255.0 ip default-gateway 192.168.1.1 no ipv6 enable interface vlan 4 routing ip address 192.168.4.22 255.255.255.0 ip helper-address 192.168.1.20 domain ip helper-address 192.168.1.20 dhcp ip mtu 1500 exit username "admin" password 0192023a7bbd73250516f069df18b500 level 15 encrypted dhcp l2relay dhcp l2relay vlan 4 ! interface ethernet 1/g13 switchport access vlan 4 exit ! interface ethernet 1/g14 switchport access vlan 4 exit ! interface ethernet 1/g15 switchport access vlan 4 exit ! interface ethernet 1/g16 switchport access vlan 4 exit ! interface ethernet 1/g17 switchport access vlan 4 exit ! interface ethernet 1/g18 switchport access vlan 4 exit ! interface ethernet 1/g19 switchport access vlan 4 exit ! interface ethernet 1/g20 switchport access vlan 4 exit ! interface ethernet 1/g21 switchport access vlan 4 exit ! interface ethernet 1/g22 switchport access vlan 4 exit ! interface ethernet 1/g23 switchport access vlan 4 exit ! interface ethernet 1/g24 switchport access vlan 4 exit snmp-server community public rw exit
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