Hi all

I am trying trunking with transparent firewall with following topology:



10.20.30.43
10.20.30.42
R1 (vlan2)-------------I
                                      I--------------------
(vlan2) R3

    Switch--------Trunking---------ASA---------Trunking---------- Switch
R2
(vlan3)-------------I
       I  ------------------- (vlan3) R4

20.10.30.43
                                                          20.10.30.42


I have four routers.

R1 and R2 are connected to switch 1 in vlan 2 and vlan 3 respectively.
 R3 and R4 are connected to switch 1 in vlan 2 and vlan 3 respectively.

ASA G0/1 is connected to switch 1 with trunking.
ASA G0/0 is connected to switch 2 with trunking.


vlan 2 - 10.20.30.0
vlan 3 - 20.10.30.0


Based on my investigation, it seems we can't achieve this. During the
initial config itself, I am facing an issue. If I associate vlan2 to e1.2,
then I am not able to associate to
vlan2 to e0.2 again.


interface Ethernet1
 no nameif
 no security-level
!
interface Ethernet1.2
 vlan 2
 nameif vlan2
 security-level 100
!
interface Ethernet1.3
 vlan 3
 nameif vlan3
 security-level 100

pixfirewall(config-subif)# vlan2
ERROR: VLAN 2 has been assigned to another interface

 pixfirewall(config-subif)# vlan3
ERROR: VLAN 3 has been assigned to another interface



I am not able configure transparent firewall across vlans but how we do, if
there a case, if I need transparent firewall across trunk that carries many
vlans. Is it possible with ASA transparent firewall?


With regards
Kings
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