Inter VLAN routing using subinterface or VLAN interface

[Peyman Sadeghi]

Hello All,

It seems that there are two methods in Cisco ASA to do the interVLAN routing as below:

1- 

Interface Gi 0/0 

switport mode truck

switchport allowed vlan 1,2

int vlan 1

ip address 1.1.1.1 255.255.255.0

no shut

Int vlan 2

ip address 2.2.2.2 255.255.255.0

no shut

2-

Interface Gi 0/0 

no ip 

no shut

int Gi 0/0.1

vlan 1

ip address 1.1.1.1 255.255.255.0

no shut

int Gi 0/0.2

vlan 2

ip address 2.2.2.2 255.255.255.0

no shut

Are these methods provide the same functionality/result? Which one is better and why? I want to implement an inter-vlan routing on 9.2.3.

Thanks,

[Jon Marshall · Accepted solution]

As far as I am aware the use of vlan interfaces is only for the ASA 5505.

Any other model of ASA uses subinterfaces and a trunk connection.

So it depends on your model as to which you use.

Jon

[Peyman Sadeghi]

Thanks Jon yes you are right.