Hello, I have a small issue about DHCP, I need two servers of DHCP.
1 - Provide by Switch Cisco range 172.17.52.0
2 - Provide by Windows Server range 10.10.10.0
Everything works ok, but when I have a Computer using vlan 101 (at interface GigabitEthernet2/0/1) the DHCP is to slow, at debug mode I can read no dhcp pool for vlan 101,
then I see forward to 10.10.10.253, but this process is to slow, my computer need about 30 seconds (at wireshark I watch about 10 lines of 0.0.0.0 255.255.255.255 resquest form the computer).
The configuration of the switch:
ip dhcp excluded-address 172.17.52.254
!
service dhcp
!
ip dhcp pool Wifi-Guest
network 172.17.52.0 255.255.255.0
default-router 172.17.52.254
dns-server 8.8.8.8 4.2.2.2
!
interface Vlan100
description ### Wireless - SSID ###
ip address 172.17.52.254 255.255.255.0
!
interface Vlan101
description ### Wireless - SSID ###
ip address 10.10.10.254 255.255.255.0
ip helper-address 10.10.10.253
!
interface GigabitEthernet2/0/1
switchport mode access
switchport access vlan 101
spanning-tree portfast
spanning-tree bpduguard enable
My point is, how to disable DHCP server to vlan 101, I have try this:
ip dhcp excluded-address 10.10.10.1 10.10.10.254
but didn’t work... the speed is slow.
Also try to
interface Vlan101
no ip dhcp-server... but this command dont work obligate to "no ip dhcp server use subscriber-id"
Anyone have ideas to block or disable dhcp to vlan 101 on the switch dhcp server?.
Thanks in advance
