cancel
Showing results for 
Search instead for 
Did you mean: 
cancel
942
Views
0
Helpful
3
Replies

Non-native VLAN DHCP not working through ports

HI, i am not an expert in cisco but even cisco were not able to make it work. i am having issues in non native vlan DHCP communicating through ports. I want to connect AP in each port. tried alot of setting but no result. I am in a bad position because of this.

IP for Router with vlans 192.168.100.1

IP for Switch 192.168.100.22

Following is my current config 

vlan database
vlan 101-105
exit
voice vlan oui-table add 0001e3 Siemens_AG_phone________
voice vlan oui-table add 00036b Cisco_phone_____________
voice vlan oui-table add 00096e Avaya___________________
voice vlan oui-table add 000fe2 H3C_Aolynk______________
voice vlan oui-table add 0060b9 Philips_and_NEC_AG_phone
voice vlan oui-table add 00d01e Pingtel_phone___________
voice vlan oui-table add 00e075 Polycom/Veritel_phone___
voice vlan oui-table add 00e0bb 3Com_phone______________
bonjour interface range vlan 1
hostname switch4423b7
no passwords complexity enable
ip ssh server
!
interface vlan 101
ip address 192.168.101.253 255.255.255.0
!
interface vlan 102
ip address 192.168.102.253 255.255.255.0
!
interface vlan 103
ip address 192.168.103.253 255.255.255.0
!
interface vlan 104
ip address 192.168.104.253 255.255.255.0
!
interface vlan 105
ip address 192.168.105.253 255.255.255.0
!
exit
ip helper-address 192.168.101.254 192.168.100.1 37 42 49 53 137 138
ip helper-address 192.168.102.254 192.168.100.1 37 42 49 53 137 138
ip helper-address 192.168.103.254 192.168.100.1 37 42 49 53 137 138
ip helper-address 192.168.104.254 192.168.100.1 37 42 49 53 137 138
ip helper-address 192.168.105.254 192.168.100.1 37 42 49 53 137 138

 

Please help me out.

 

Regards Farhan Khan

3 Replies 3

Sergey Lisitsin
VIP Alumni
VIP Alumni

Hi Farhan Khan,

 

Usually, helper-address command is executed under the layer 3 interface, so in your case it will be under the VLAN interfaces like that:

 

interface vlan 101

ip helper-address 192.168.100.1

 

Also, have you got DHCP scopes configured on the router and has it got the return routes to all the networks on the switch? Can you show the output of following commands from the router:

 

show run | sec dhcp

show ip route

 

First thing is there no option to turn the switch in layer 3 completely
only port can be turned in to layer 3 individually.

IP Helper command was executed

Vlan works on AP When connected directly from the router


anyone to help?