09-04-2015 08:33 AM - edited 03-11-2019 11:32 PM
Is it possible to have a Transparent Firewall on Trunk Link. I have 3 vlans.
Current
S1 3750 ------- S2 3750
trunk link passing 3 vlans
switchport trunk encapsulation dot1q
switchport mode trunk
S1 3750 ----- PIX515 ------ S2 3750
Please provide a sample config. Thanks!!
Solved! Go to Solution.
09-08-2015 08:46 AM
Maximum Physical Interfaces : 3
You need to upgrade your license so you can configure more interfaces. If you have 3 VLANs you will need 6 interfaces and 6 VLANs. YOu need a different VLAN because you are not able to configure the same VLAN on more than 1 interface.
PIX licenses are no longer sold, so you will have to upgrade to an ASA if you need to get this working.
--
Please remember to select a correct answer and rate helpful posts
09-04-2015 02:57 PM
Yes it is possible. You will however be limited to 8 that will be able to cross the ASA though. All you need to do is configure the trunk port on the switch, as you have provided in your configuration. Then on the ASA configure subinterfaces and BVI interface for each VLAN.
--
Please remember to select a correct answer and rate helpful post
09-08-2015 08:16 AM
When I try to assign the nameif to the 3rd sub interface. I get the following error.
ERROR: Maximum number of interfaces already configured.
Cisco PIX Security Appliance Software Version 7.2(2)
Device Manager Version 5.2(2)
Compiled on Wed 22-Nov-06 14:16 by builders
System image file is "flash:/image.bin"
Config file at boot was "startup-config"
PROS-PIX up 10 mins 17 secs
Hardware: PIX-515E, 64 MB RAM, CPU Pentium II 433 MHz
Flash E28F128J3 @ 0xfff00000, 16MB
BIOS Flash AM29F400B @ 0xfffd8000, 32KB
0: Ext: Ethernet0 : address is 0017.5aaf.9b2e, irq 10
1: Ext: Ethernet1 : address is 0017.5aaf.9b2f, irq 11
2: Ext: Ethernet2 : address is 000e.0ca9.68b6, irq 11
Licensed features for this platform:
Maximum Physical Interfaces : 3
Maximum VLANs : 10
Inside Hosts : Unlimited
Failover : Disabled
VPN-DES : Enabled
VPN-3DES-AES : Enabled
Cut-through Proxy : Enabled
Guards : Enabled
URL Filtering : Enabled
Security Contexts : 0
GTP/GPRS : Disabled
VPN Peers : Unlimited
This platform has a Restricted (R) license.
09-08-2015 08:17 AM
What license do you have installed on the ASA?
could you post your configuration please.
--
Please remember to select a correct answer and rate helpful posts
09-08-2015 08:19 AM
I posted the license above and it is a PIX not a ASA.
09-08-2015 08:46 AM
Maximum Physical Interfaces : 3
You need to upgrade your license so you can configure more interfaces. If you have 3 VLANs you will need 6 interfaces and 6 VLANs. YOu need a different VLAN because you are not able to configure the same VLAN on more than 1 interface.
PIX licenses are no longer sold, so you will have to upgrade to an ASA if you need to get this working.
--
Please remember to select a correct answer and rate helpful posts
11-19-2015 07:44 AM
OK so I got the ASA running. Still having issues. NO traffic is being passed. Below is the config.
ASA Version 9.1(6)8
!
firewall transparent
names
!
interface Ethernet0/0
no nameif
no security-level
!
interface Ethernet0/0.1
vlan 1
nameif outside1
bridge-group 1
security-level 0
!
interface Ethernet0/0.110
vlan 110
nameif outside110
bridge-group 10
security-level 0
!
interface Ethernet0/0.192
vlan 192
nameif outside192
bridge-group 92
security-level 0
!
interface Ethernet0/1
no nameif
no security-level
!
interface Ethernet0/1.1
vlan 2
nameif inside1
bridge-group 1
security-level 100
!
interface Ethernet0/1.110
vlan 112
nameif inside110
bridge-group 10
security-level 100
!
interface Ethernet0/1.192
vlan 292
nameif inside192
bridge-group 92
security-level 100
!
interface Ethernet0/2
shutdown
no nameif
no security-level
!
interface Ethernet0/3
shutdown
no nameif
no security-level
!
interface Management0/0
management-only
shutdown
no nameif
no security-level
!
interface BVI1
ip address 10.7.1.251 255.255.255.0
!
interface BVI10
ip address 10.7.10.251 255.255.255.0
!
interface BVI92
ip address 192.168.4.251 255.255.255.0
!
ftp mode passive
access-list List extended permit ip any any
pager lines 24
mtu outside1 1500
mtu outside110 1500
mtu outside192 1500
mtu inside1 1500
mtu inside110 1500
mtu inside192 1500
icmp unreachable rate-limit 1 burst-size 1
no asdm history enable
arp timeout 14400
no arp permit-nonconnected
access-group Group out interface outside192
timeout xlate 3:00:00
timeout pat-xlate 0:00:30
timeout conn 1:00:00 half-closed 0:10:00 udp 0:02:00 icmp 0:00:02
timeout sunrpc 0:10:00 h323 0:05:00 h225 1:00:00 mgcp 0:05:00 mgcp-pat 0:05:00
timeout sip 0:30:00 sip_media 0:02:00 sip-invite 0:03:00 sip-disconnect 0:02:00
timeout sip-provisional-media 0:02:00 uauth 0:05:00 absolute
timeout tcp-proxy-reassembly 0:01:00
timeout floating-conn 0:00:00
dynamic-access-policy-record DfltAccessPolicy
user-identity default-domain LOCAL
http server enable
no snmp-server location
no snmp-server contact
snmp-server enable traps snmp authentication linkup linkdown coldstart warmstart
crypto ipsec security-association pmtu-aging infinite
crypto ca trustpool policy
telnet timeout 5
no ssh stricthostkeycheck
ssh timeout 5
ssh key-exchange group dh-group1-sha1
console timeout 0
threat-detection basic-threat
threat-detection statistics access-list
no threat-detection statistics tcp-intercept
!
class-map inspection_default
match default-inspection-traffic
!
!
policy-map type inspect dns preset_dns_map
parameters
message-length maximum client auto
message-length maximum 512
policy-map global_policy
class inspection_default
inspect dns preset_dns_map
inspect ftp
inspect h323 h225
inspect h323 ras
inspect rsh
inspect rtsp
inspect esmtp
inspect sqlnet
inspect skinny
inspect sunrpc
inspect xdmcp
inspect sip
inspect netbios
inspect tftp
inspect ip-options
!
service-policy global_policy global
prompt hostname context
no call-home reporting anonymous
Cryptochecksum:b7db95aafb0e7c0e9e1f7fadb0f28215
: end
11-19-2015 07:44 AM
Any help on this??
11-23-2015 12:09 AM
sorry for the late reply.
You need to either add the command same-security-traffic permit inter-interface or add ACLs to the interfaces allowing the desired traffic.
--
Please remember to select a correct answer and rate helpful posts
Discover and save your favorite ideas. Come back to expert answers, step-by-step guides, recent topics, and more.
New here? Get started with these tips. How to use Community New member guide