10-21-2008 09:45 AM - edited 03-04-2019 12:01 AM
1760 Router - 2960 Catalyst
I'm running multiple VLAN's - I'm able to pull DHCP on native vlan - but nothing else.
Router
ip dhcp pool 1
network 192.168.74.0 255.255.255.0
dns-server 10.132.80.5 10.132.80.6
netbios-name-server 10.132.80.5 10.132.80.6
default-router 192.168.74.1
lease 3
!
ip dhcp pool 2
network 10.132.74.0 255.255.255.0
default-router 10.135.74.1
dns-server 10.132.80.5 10.132.80.4
netbios-name-server 10.132.80.5
lease 3
!
ip dhcp pool 3
network 10.135.74.0 255.255.255.0
default-router 10.135.74.1
netbios-name-server 10.132.80.5
lease 3
!
interface FastEthernet0/0
no ip address
speed auto
full-duplex
!
interface FastEthernet0/0.1
encapsulation dot1Q 1 native
ip address 192.168.74.1 255.255.255.0
!
interface FastEthernet0/0.2
description XXX LAN
encapsulation dot1Q 2
ip address 10.132.74.1 255.255.255.0
!
interface FastEthernet0/0.3
description XXX VOIP LAN
encapsulation dot1Q 74
ip address 10.135.74.1 255.255.255.0
Switch
interface FastEthernet0/23
switchport access vlan 2
switchport mode access
spanning-tree portfast
vlan 2
name LAN
10-21-2008 09:55 AM
You might need to configure a dhcp relay agent.
10-21-2008 10:16 AM
Thanks, native vlan attached to fa0/0.1 is working and not using a helper.
HOSTNAME#show ip interface fastethernet0/0.1
FastEthernet0/0.1 is up, line protocol is up
Internet address is 192.168.74.1/24
Broadcast address is 255.255.255.255
Address determined by non-volatile memory
MTU is 1500 bytes
10-21-2008 08:11 PM
Hi,
Since we are using the on board DHCP server, we don't need no relay agent.
Are we getting the discover or the request packets on to the switch? Enable debug using the following:
debug ip dhcp server {events | packets | linkage}
If the Bootp packets are not coming along onto the switch, then we have some connection issues, if they do but the switch does not reply back, then we have some issues with the switch.
-/ Kiran
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