Cisco Firewall :: 5510 - Transparent Firewall Installation Using ASA Version 8.4(3)9
May 14, 2012
I'm trying to install an ASA 5510 transparent firewall using ASA version 8.4(3)9 but I don't understand how traffic will ever pass through my firewall if both interfaces are on the same sub net(V lan) as the host and it's default gateway? The reason I'm doing this is were installing UAG (or Direct Access) and the UAG appliance need to have public IP's but still be behind a firewall (see attached diagram).
Looking at the documentation (which all seems to be for 5505's running 8.2) it almost seems like i need to have the transparent firewall 'in-line' to the ISP router?, but this router services another IP address range on another v lan for other (routed) firewalls (not shown on diagram) so putting it 'in-line' is not possible. Surely this can't be the case can it? If not how is it supposed to be cabled up and configured so packets go through the firewall?
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Apr 10, 2013
We've in our company a Cisco Asa 5510 v8.4(3), Asdm 6.4(7) and a SSM-CSC-10-K9. The firewall is in transparent mode. I get an exchange 2003 SP2 server behind. When users trying to send mailing lists with many recipients (above 300), the Exchange server didn't send these mails. I'm pretty sure that this problem come from the ASA Firewall, because when I plug my server directly on my Internet Connection, the mailing list is sent. I've search on the web, and disable "ESMTP Inspection", but it didn't work. [code]
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Oct 9, 2012
I have a ASA 5510 that is connected to my ISP and the inside interface that is connected to my router. I have a /30 and need to determine if the configuration of x.x.x.121/30 which is my ISP and also the BVI address on the ASA. The inside router address is x.x.x.122/30 same subnet as my ISP will allow me to pass traffic. Management interface works using a different ip address but not able to get the traffic to pass traffic out to the internet thru the ASA
ISP-------->ASA-------->Router
Bottom Line is that I only have one usable address that is being used by the router and the ISP and ASA are using the other. Will this work?
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Apr 19, 2012
I m trying to set my friewall in my network. The network is very simple. I have my router in 192.168.16.1 255.255.255.0 (mac-address 58-98-35-2a-4c-39) I have my switch in 192.168.16.26 255.255.255.0 (mac-address 00-19-99-5d-1f-43) and i have my firewall ASA between the router and the switch in 192.168.16.250 255.255.255.0 (mac-address 64-9e-f3-ba-28-c9)
So i need to configure 3 interface in my ASA.
- OUTSIE e0/0(I call it INTERNET)
- INSIDE e0/1(I call it LAN)
- MANGEMENT m0/0(I call it MANAGEMENT)
[Code]....
But with this config when I plug the firewall, i dont have access to internet anymore.
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May 10, 2011
i am using Cisco ASA 5510 with ASA Version 8.0(4) and memory 256MB. me to Upgrade it to 8.3
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Mar 10, 2013
We have a small cisco 1800 series workgroup router that seperates our network from the outside world. The data coming into our network goes into the router on interface fa0/1 and comes out on interface fa0/0. fa0/0 is split into 2 sub-interfaces (fa0/0.2 and 0/0.3). These sub-interfaces correspond to a desktop and server vlan on our network. The workgroup router is connected to a 3560G trunk port (we'll call it switch 1) and switch 1 connects to another 3560G (we'll call it switch 2). Recently I was asked to add another layer of security to our network by installing an ASA 5510 firewall and forcing certain types of traffic to authenticate using their domain credentials for our network. The firewall was set up between the router and switch 1 in transparent, multi-context mode. There are 2 security contexts, 1 for the desktop vlan and 1 for the server. Both have the same security settings applied to them since we want the same behavior regardless of whether they are trying to access the servers or the workstations.
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Sep 4, 2012
I am working on a task of redirecting any unmatched http traffic to Symantec public transparent proxy through Cisco ASA. For the definition of uncatched http traffic, we have inbound squid servers for deploying IE proxy pac and redirect the http traffic to Symantec public transpraent proxy, however we can't deploy IE proxy pac to mobile device and non-support web browers.Since we have some application using IE proxy setting for direct http communication with external domains, the current symantec policy addes those domains in the exception list so that they are not redirect to Symantec public transparent proxy server.
-For the platform - Cisco ASA 5510 ASA 8.4(4)1
-For the solution, I have the following two nat rules
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Mar 8, 2011
Will give configuration of NAT for my internal users with 192.168.1.0/24 with single public IP.
I new to configure IOS version 8.3.
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Dec 22, 2012
i have asa901-k8.bin" in my asa firewall and downlaod liecnce from cisco,now i dont know how to allow internet to my user.?
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Feb 19, 2012
have a question. I have a ASA5510 with IOS version 8.2 . I have my firewall and behind it also have a mail server eg 192.168.1.x. When i send email from inside network it doesn't show as if it's coming grom the out side nated public IP of my server but IP of firewall. What am i missing my example nat statements are . Nat-control is disabled.
static (inside,outside) 196.68.99.x 192.168.1.x netmask 255.255.255.255
access-list inbound extended permit tcp any host 196.68.99.x eq 225
accesslist outbound extended permit host 192.168.1.x host 196.68.99.x
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Feb 3, 2013
I am looking to upgrade a 5510 that is currently on code version 8.0(4) to code version 9.1. I know I will have to upgrade to 1gb ram, but can i just upgrade straight to version 9.1 or do I need to follow an upgrade path? This is a standalone device so I am planning on downtime.
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Apr 26, 2011
I do have the below setup,,
1. I have 6509 switch
2. I have 2 WLC configured in Active/Active mode connected in Trunk mode (L2 Port-Channel) connected with 6509 switch
3. On switch side i have configured the port as Trunk
4. L3 SVI for wireless users are created in 6509 switch (attached the diagram).
I would like to introduce a Cisco ASA 5520 firewall with AIp-SSM module so that all wirelees traffic can be inspected.
The issue is: Without changing any configuration in the network (switch & WLC) is it possible to introduce the firewall?
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May 5, 2013
I have an asa 5520. How would I configure my dedicated management interface to be able to route off subnet while the firewall is in transparent mode?
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Dec 3, 2012
I would like to configure an ASA5512-X in firewall transparent mode, but I am having trouble getting ASDM to lauch when I do.
I have created a BVI interface with an IP address, and I hve enabled the mangement interface, but ASDM does not lauch when I enter the IP adress of the BVI I created.
Apprently you need to use the bridge-group command to assign an interfce to a bridge group. When I enter this command at the (config-if) prompt for Management 0/0, this command is not recognized.
What are the general steps for configuring the management interface to be able to launch ASDM in transparent mode?
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Dec 22, 2011
Trying to set up a asa 5505 in transparent firewall mode. I cannot set the management ip address:
ciscoasa> enable
Password:
ciscoasa# config term
[Code].....
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Mar 14, 2011
I am configuring an ASA5540 firewall for a client, only difference to usual being that it is to run in Transparent mode. I have looked through for an EAL4 transparent firewall config guide but found nothing and therefore assumed that the usual one would be used.The clients security bod has now come back and insisted MAC filtering should be used but I can find no reference of this anywhere. Does MAC filtering is required to make a transparent box EAL4 compliant and if so where I can find documentation supporting this?
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May 9, 2011
I am familiar with the PIX and ASA's. We have two Cisco 6509's with a FWSM installed in both. Our network is shown in the diagram. We use Blue Coat Packetshapers and Barracuda Proxy appliances. I plan on setting up HSRP on both 6509's for traffic coming from our ISP Cisco 2811's as well as use HSRP for our DMZ and internal network. I would like to setup the firewalls for statefull failover. We will be using PAT for our internal users and one-to-one static NAT for our DMZ.
Is it better to setup the firewall's as transparent or routed?
Since the firewall is built into the switch, how do I insert the Barracuda proxies? I can configure them as transparent or routed proxies.
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Apr 27, 2011
I'm integrating a Cisco ASA5505 with a Websense proxy. I have a configuration setup where we have four routers which are used for Internet access. There are two VLAN's - Guest and Private. What I would like to achieve is making the use of available bandwidth by load distribution via GLBP, and filtering users web traffic. Two routers will be used for a GLBP group in one VLAN, and the other two routers will be used for GLBP in another VLAN.The users are connected to a Cisco 2960 switch and are in their respective VLAN's. I'm planning a 802.1q trunk to a Cisco ASA from the 2960 switch, carrying both VLAN's.What I would like to know is if there is a CSC module (or similar) which has Websense installed on it, and if it is possible to setup the ASA5505 in transparent mode to filter the traffic in this way? Hopefully this would allow multiple users to take advantage of the additional bandwidth, and not be restricted by using a traditional proxy setup which where all web traffic would be originating from a single MAC address.
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Feb 13, 2012
I have an access-list that was named "extended" (without quotation marks) and the ASA will not let me remove it.
I have tried everything I know to try and get it out, but I cannot remove a single line.
ASA(config)# no access-list extended line 1 extended permit ip host 10.1.1.1 host 192.168.1.1ERROR:<1> not a valid permission
ASA(config)# no access-list extended line 1 permit ip host 10.1.1.1 host 192.168.1.1ERROR:<1> not a valid permission
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Sep 10, 2012
i have a ASA5510 in the office, that already configured 3 context, namely, admin, user, server.in the server context, the last running config was not saved, and there was a power trip last friday night. 1 of the sub interface was affected, and i need to recreate that interface.I am getting the below error, it only allow me to do changes those pre-defined interface.how to I create extra sub interface?
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Mar 31, 2013
I have one firewall need to be configured in transparent mode. I have inside and outside router. What is the configuration of transparent firewall ASA8.2. I didn't find the configuration on Cisco site.
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Nov 25, 2012
I am trying to set the PIX firewall to transparent mode.After I set it to transparent firewall, I allowed all icmp, tcp, udp traffics.Currently, any devices in the inside network can get the ip automatically from DHCP server in the outside network but cannot ping to any servers in the outside network either access the internet.Do I need additional confiration on the firewall?
Here's the configuration:
PIX Version 7.0(1)
firewall transparent
names
!
interface Ethernet0
[Code]....
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Sep 11, 2007
I want to configure an ASA 5505 in transparent mode (7.x). Somehow, I got it to work.. but i need some kind of step by step description. I just want to connect it with outside on a route .. inside in my LAN. Its working now with one ASA. But in the Web Interface the Interfaces inside and outside are down.. but its working.
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Dec 9, 2012
I have a question regarding transparent firewalls using BVIs.Based from the diagram above, ASA1 is in Transparent mode.Port Gi0 is assigned BVI-1 and port Gi1 is assigned BVI-2. Is it possible for network 1 to communicate with network 2 ?The traffic will be passing through Firewall towards the router, The router will do the routing and then forward it back to the firewall then towards network 2?I am thinking of making port Gi2 of the firewall a trunk and use subinterfaces in order to forward BVI headers to the router.
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Mar 5, 2013
I am currently migrating a netscreen firewall to a asa 5515 version 8.6 The issue is setting up the management connectivity.
basically the management IP of the cisco asa is not advertised. But, we want to route a management IP through the management interface to interface Gi0/2.
so IP of management interface is say - 216.10.100.10. and the IP of the inside interface is say - 198.1.1.10/24 on our router we have a static route sending 198.1.1.0/24 to next hop of 216.10.100.10 (management interface of cisco asa).
On the Cisco ASA can I send the traffic to the inside interface and manage the firewall via ssh that way?
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Jun 1, 2013
ASA 505 is connected to layer 3 switch.ASA is in transparent mode.Layer 3 switch has SVI Vlan 20 and also it has dhcp server for vlan 20.PC connected to transparent switch is not able to get the IP address from layer switch.I have config the ACL on outside interface of ASA to allow the DHCP reply coming from Switch.When i assign static IP to PC connected to port eth0/1 of ASA it works fine. [code]
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Apr 3, 2012
provide me with the important links which can show me how to do the software upgrade for my ASA 5520 ver 7.0(1) to ver 8.4 ? as well as the ASDM
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Mar 15, 2012
How are asa5540 in high availability mode upgraded for their versions.
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Dec 26, 2012
configuring NAT on intranet firewall. here is the my topology:
DMZ Network - - - - - - - - - External Firewall - - - - - - - - - Internet
|
|
|
Internal Network - - - - - - - - - Internal Firewall
1) I can Ping the intneral host from external firewall, internet firewall and DMZ network
2) Both ASA's are running OS Version 9.0(1)
3) ACL used permit IP any any, on both (i.e inside and outside)
NAT configuration on Internal Firewall (Identity NAT)
object network MGMT-SRV-INSIDE subnet 10.10.10.0 255.255.255.192
object network MGMT-SRV-identity
subnet10.10.10.0 255.255.255.192
object network MGMT-SRV-INSIDE nat (Inside,Outside) static MGMT-SRV-identity
[code]....
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Oct 11, 2011
I would like to know how can I block a ip address from the CLI at the Cisco PIX Firewall Version 6.3(4)
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Dec 19, 2012
I need to know if the 5512X IPS will work if the ASA is in transparent mode and/or any limitations.
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Feb 20, 2013
Is it possible for an 5505 ASA to be in transparent mode such as ethernet0/0 outside, ethernet 0/1 inside, and use ethernet 0/2 for syslog only on a seperate network other than the one that 0/0 and 0/1 is using. The tranparent part being on a 192.168.168.X/24 and the syslog server being on say a 10.2.1.X/24 network?
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Sep 15, 2012
I just have 1 question. I am going to be getting U Verse installed at my house and have been having a hard time finding this in the documentation. The modem I am going to be getting is the 3800HGV-B. Over on the ATT forum users are stating that the modem needs every MAC of every potential IP. I thought about using it's DMZ Plus mode but I am getting a block of 8 IP's and it doesn't seem to play nice unless it see's 5 different MAC's. Right now I have my 5505 in routed mode so I don't believe it passes the MAC of the client's through. Will the ASA pass the MAC of the client's through to the modem with the appropriate ACL's applied?
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