04-22-2018 11:16 AM - edited 03-05-2019 10:19 AM
I have a 3560 Switch, a 2901 Router, and an ASA 5520
on the switch
Gi0/1 to the router
Trunk with vlan 10,12,14
That is working
I also have the guest
as ASA 0/2.16
confnected to port 0/4 on the switch.
10,12,and 14 get the dhcp from the router.
but the ASA and the switch doesn't seem to try to pass any packets to get the dhcp from the asa.
SW:
interface GigabitEthernet0/1
description TO Router Inside
switchport trunk encapsulation dot1q
switchport trunk native vlan 10
switchport mode trunk
switchport voice vlan 12
spanning-tree portfast
!
interface GigabitEthernet0/2
description TO ASA 0/3
switchport access vlan 10
switchport voice vlan 12
spanning-tree portfast
!
interface GigabitEthernet0/3
description TO Wireless AP
switchport trunk encapsulation dot1q
switchport trunk native vlan 10
switchport mode trunk
switchport voice vlan 12
spanning-tree portfast
!
interface GigabitEthernet0/4
description TO ASA 0/2
switchport access vlan 16
switchport mode access
switchport voice vlan 12
spanning-tree portfast
!
interface GigabitEthernet0/34
description TEST PORT
switchport access vlan 16
switchport mode access
switchport voice vlan 12
spanning-tree portfast
ASA
interface GigabitEthernet0/2
no nameif
no security-level
no ip address
!
interface GigabitEthernet0/2.16
description TO ASA 0/4
vlan 16
nameif guest
security-level 50
ip address 10.240.16.1 255.255.255.0
dhcpd dns 208.67.222.222 208.67.220.220
!
dhcpd address 10.240.16.2-10.240.16.250 guest
dhcpd enable guest
Anything I could be wrong about?
04-22-2018 12:54 PM
Hi
The ASA configuration looks fine but are you passing the VLAN 16 on the switch?
04-22-2018 01:35 PM - edited 04-22-2018 03:24 PM
I have the vlan on and it's set to no ip address.
I have spent days on this and it suddenly works now. I had reconfigured the Switchport as Trunk instead of access again for the 50th time, and then it worked. Even though there is only one VLAN present on the port. It was odd. I have tried it and every combination of settings it finally worked about 10 minutes after I posted this.
04-22-2018 01:37 PM
oh ok, Happy to know it is working.
:-)
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