Cisco Firewall :: 5520 - Configuring ASA Management On Sub-interface
Jul 27, 2010
I have two ASA 5520 with 4 Giga interfaces and 1 management interface.
I need to use 4 interfaces four data traffic
1- Inside
2- Outside
3- dmz-1
4- dmz-2
The remaining will be the management interface only.How can I configure the Statefull failover and Management?
1- I used the management0/0 for The stateful failover.
2- I used gig 0 for outside
3- I used gig 1 for inside
4- I used gig 2 for dmz-1
5- I divided the gig 3 to two sub interfaces
a- gig0/3.1 for dmz-2
b- gig0/3.2 for Management and I defined it as a management-only
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Nov 29, 2011
I am currently doing some research (for my employer) into creating multi-context sub-interfaces on a Transparent ASA 5550.
I have not been able to find any details on this subject which state it is or it is not possible. This will be used for Syslog logging.
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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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Jun 30, 2010
How to configure SSH on a ASR 1002 and apply it to the Management Interface?
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Nov 29, 2011
we are having a firewall asa 5520 .we have connected the management port and inside port to internal network and dmz port to dmz network.now we need to configure tacacs and other management tool on dmz devices through management port. The problem is the management devices tacacs and other are placed in internal network.
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Feb 13, 2012
I am having issues with the ASA 5510 management interface. I can't communicate with this interface. It is showing DOWN/DWON even if I type NO SHUT several times.
My existing config is as follows
our-asa-01# sh run
Saved
ASA Version 7.2(5)
hostname our-asa-01
names
dns-guard
interface Ethernet0/0
[code]....
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May 14, 2011
I am configuring new ASA 5520 with AIP module for our network with HA (2 boxes), would be the best practice to configure in order to protect web servers and email server.
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Jun 20, 2011
I present wish to develop a policy and template for QOS on our ASA 5520 release 8.0(2) we presently have wish to do server hosting in our network for other organization,which the they will be able to access their servers they have both public and private addresses. we do have our one servers also already in production all behind the ASA And therefore we wish to apply qos on the servers to be hosted and we wish to do this on the ASA. how to go about this to apply qos on the ASA?
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Jan 13, 2013
To configure a dynamic NAT, PAT, or identity NAT rule, I need to perform the following steps:
Step 1 From the Configuration > Firewall > NAT Rules pane, choose Add > Add Dynamic NAT Rule.
The Add Dynamic NAT Rule dialog box appears. However, when I click on Add I don't get the option to Add Dynamic Nat Rule. To see the options I get please see attachment.
The following is a capture of the show version:
ciscoasa# show ver Cisco Adaptive Security Appliance Software Version 8.4(2) <system> Device Manager Version 6.4(1) Compiled on Wed 15-Jun-11 18:17 by builders System image file is "Unknown, monitor mode tftp booted image" Config file at boot was "start up-config"
ciscoasa up 16 mins 57 secs Hardware: ASA 5520, 1024 MB RAM, CPU Pentium II 1000 MHz Internal ATA Compact Flash, 256MB
BIOS Flash unknown @ 0x0, 0KB
0: Ext: GigabitEthernet0 : address is 00ab.a72f.0100, irq 0
1: Ext: GigabitEthernet1 : address is 00ab.a72f.0101, irq 0
2: Ext: GigabitEthernet2 : address is 0000.ab6d.9802, irq 0
[code]...
This platform has an ASA 5520 VPN Plus license. Serial Number: 123456789AB
Running Permanent Activation Key: 0x4a3ec071 0x0d86fbf6 0x7cb1bc48 0x8b48b8b0 0xf317c0b5
Configuration register is 0x0
Configuration has not been modified since last system restart.
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Jun 28, 2012
I have a brand new ASA5512-X running 8.6.1, and am trying to do an initial setup using the Quick Start Guide that came with it. However, the Management Interface is not working. I have a PC connected and set to use DHCP, but the port is not active. I connected a console cable and can see in the config that the interface is shutdown. So I set it to active, and the port is now active, but is not giving out a DHCP address as the guide says it should.I would like to use the ASDM Startup Wizard to configure this device, so how do I get it to work the way the instructions say it should?
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May 9, 2011
How does one allow /31 mask for an management interface on an ASA5540 using version 8.3(1)?
I need to configure a 192.168.x.y /31 on the management 0/0 interface of a ASA5540 and it is providing me with the following error:ERROR: /31 mask is not allowed
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Jan 6, 2013
I have a misanderstand about management interface configuration in cluster. So I have a cluster asa 5515X with management interface. i Would like to be able to connect to any of the member of my cluster on management interface, so i would like to fix a different ip on management interface on each of my node ip 92 and 91. I think it is the only way to make asa firmware update to access local flash on each node.
my config
interface GigabitEthernet0/1
channel-group 1 mode active
no nameif
[Code].....
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Jan 21, 2013
I try to SSH and get access denied.
I try to ASDM and get "Unable to launch device manager from 172.16.252.100"
I think I am missing something. Software is 8.4(5) and running in Transparent Mode.
Inside/Outside are in bridge-group 1. No BVI is configured as we will be using Management0/0 for access.
login as: test
test@172.16.252.100's password:
Access denied
[Code].....
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Oct 16, 2011
i have a Cisco ASA 5520 8.4(1) with a ASA 5520 VPN Plus license
i want to use the management interface as a regular interface (using the no management-only command)is this interface a Gig interface as well ?
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May 24, 2012
I seem to get conflicting information on using the Management port as a regular routed interface on the ASA5510..The management interface can be used for the traffic that passes through the firewall as well. The Security Plus License for the ASA 5510 is required in order to use the management0/0 port as a regular interface. With a base license on the 5510, the management0/0 port cannot be used as a regular interface.
I believe that I saw another post that mentioned it was part of the standard IOS if you had a later version.
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Jul 21, 2012
I configure the virtual MAC address for a interface on ASA 5520, will enter the following command on the active unit:
failover mac address Inside 0012.3456.789a 0023.4567.89ab
The active MAC address is of the same as the Inside's burned-in MAC address of the active unit.Similarly, the standby MAC address is of the same as the Inside's burned-in MAC address of the standby unit.Do I get the effect of failover mac address command?
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Dec 18, 2011
I have successfully been able to allow outbound access from inbound hosts on the appliance; however, I have only one outbound IP address and had to configure outbound access using static PAT. What I need to do is to configure access to certain inbound hosts from outside. What's wrong with my running config? Below are the commands that I believe need to be changed from the configuration. [code]
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Sep 4, 2012
I have a 5510 FW in multi-context mode that is showing a high drop count on the Management interface in the Admin context.
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Jun 8, 2011
I've got an ASA 5505 running 6.3 I've connected the management interface to our management vlan (which contains switch IPs, ilo's etc)Is there a way to allow access to this vlan from another?
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Mar 30, 2011
We have several pairs of ASA5510s in failover A/P mode, some running 8.3(2) and others running 8.4(1).
e0/0 = outside
e0/1 = inside
m0/0 = management
The problem we're having is we can't get anything to route out of the management interface unless we put in a static route at least to the subnet level. For example, we want syslog traffic to exit out m0/0 to our syslog server 10.71.211.79. Our 'gateway of last resort' points to the next hop out e0/0, and a second static route with a higher metric and a more distinct network space is for m0/0 as in:
route outside 0.0.0.0 0.0.0.0 192.168.49.129 1route management 10.72.0.0 255.255.0.0 10.72.232.94 10
This doesn't work, and ASDM loggin gives this error: ".....Routing failed to locate next hop for udp from NP Identity Ifc:10.72.232.89/514 to management:10.72.211.79/514"
If I put in a more granular subnet route, or a host route of the syslog server it works, such as:
route management 10.72.211.0 255.255.255.0 10.72.232.94 10 <------------- this works
route management 10.72.211.79 255.255.255.255 10.72.232.94 10 <------------- this works too
Why won't a static route for 10.71.0.0 255.255.0.0 work in this case?
We are going to have numerous hosts access and be sent messages though the management interface of these ASAs, and it would be very burdonsome to have to add a host, or even a subnet, route for every one. I've removed all static routes and tried to rely on EIGRP, but that doesn't work. I also had to put 'passive-interface management' under the EIGRP for this to work.
Here is the pertinant ASA config concerning syslog, routing, and interfaces:
interface Ethernet0/0 nameif outside security-level 0 ip address 192.168.49.140 255.255.255.128 standby 192.168.49.141 !interface Ethernet0/1 nameif inside security-level 100 ip address xxx.xxx.xxx.xxx 255.255.255.128 standby
[Code].....
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Jun 24, 2012
After I have upgraded our ASA 5510 to 8.4.2 I have problem with the management interface.Our former firmware 8.2.3 had no problem using the management interface as a DMZ zone, but after we upgraded to 8.4.2 we can't make it work.The interface and the protocol is up, when I type: show interface.But when I ping the interface from a computer connectet to the interface, nothing happens.
Even the logging shows nothing.
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Nov 1, 2011
I am new to Cisco firewalls. We are moving from a different vendor to Cisco ASA 5520s.I have two ASA 5520s running ASA 8.2(5). I am managing them with ASDM 6.4(5).I am trying to setup Active/Standby using the High Availability Wizard. I have interfaces on each device setup with just an IP address and subnet mask. Primary is 10.1.70.1/24 and secondary is 10.1.70.2/24. The interfaces are connected to a switch and these interfaces are the only nodes on this switch. When I run the Wizard on the primary, configure for Active/Standby, enter the peer IP of 10.1.70.2 and I get an error message saying that the peer test failed, followed by an error saying ASDM is temporarily unable to connect to the firewall.
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Nov 15, 2011
We have a block of addresses assigned to us by our ISP. We need to assign one of these addresses to a vendor we use for traffic to one of their internal devices. Lets say the address we gave them out of that block of addresses is 1.2.3.4
How do I add that address to the outside interface so that when traffic s sent to it that the traffic actually gets to the ASA as right now when we send traffic to that address it doean't make it to the ASA.
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Feb 3, 2013
I cannot seem to ping from the outside of my 5520 firewall to an inside network. I have a single physical outside interface connected to a Layer 2 switch, with a laptop connected to it. This is on network 10.11.131.0/28. From there, I cannot ping to the inside interface (which is a sub interface on G0/0) with network 10.11.130.0/24/ For some reason, it doesnt work.
Now. I had access-lists in place, but have removed them for testing and it still doesnt work. I have set the security level of inside and outside to 100, and entered the same-security-traffic permit inter-interface command - still no joy. Below is the relevant configuration.
Inside Interface
interface GigabitEthernet0/0.96
description L3 Interface - Informational Zone
vlan 96
[Code].....
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Feb 23, 2011
Recently our network experience a Internal DoS attack. One internal server ( the network/security team doesnt have any access to the adninistration of these server) starts to send a lot of DNS bogus request to some DNS servers on the Internet. With sh conn detail we saw the IP of these server and blocked it with an ACL in the Internal ASA 5520 interface. After that, the server team disconnect the server, and made their job cleaning these infected device. Everything goes normal again....
Today, the same server starts again with the same problem. But a lot worst thant the first time. The ASA starts to drops packets in the internal interface, the overruns was increasing dramatically ( like 10000 per second), the asp-drop table shows the same amount of traffic than interface overruns in the ACL-Drop line , and the CNT blocks for 16xxx with sh blocks was in zero. The sh acess-list INSIDE shows near 9 million hints in the line that deny the DNS request from the server to the Internet. Again, we disconnect the server and the problem was solved by the server team.
It seems that our ASA cant handle in their internal interface the amount of traffic that these server send outbound. IS there anyway to raise the blocks in the firewall? What is the best way to deny the servers connections ( ACL, or MPF or threat detection maybe), and avoid the ASA interface overruns even when the server sends these large amount of request.
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Mar 16, 2013
i have a Problem with SNMP on the ASA Outside Interface. I want to monitor the Interface via SNMP (linkup, link down). I have a Active/Passive Cluster running on 8.4.2 and configured SNMP (v1) for Test on the Outside Interface. It's not that hard but when i try to test my Configuration with (peerless) SNMP Tester the Interface doesn't respond. Did i forget to configure something? Searched the forum but didn't find anything useful.
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Jan 2, 2012
I have got ASA 5520. How to use the management port as a normal port on ASA. What are the basic reqirements for that.
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Nov 10, 2011
On a Cisco ASA 5520. I have 2 interfaces that are the same security level. I need hosts on 1 of these interfaces to be able to get to a specific IP and port on the other but I DON'T want to blanket enable 'same-security-traffic permit inter-interface" I have added an ACL inbound on the interface allowing the desired traffic and inbound on the other for return traffic and it simply doesn't work.
interface GigabitEthernet0/3.175
vlan 175
nameif Test175
security-level 30
ip address 172.30.175.1 255.255.255.0
[code]....
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Jun 21, 2011
I am currently using g0/3 for failover between my two ASA5520's. I would like to move that to the management interface to free up g0/3 for a second DMZ segment. are there any implications to doing this live other than i would only have a single ASA during the move?
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Mar 7, 2012
I'm trying to NAT SIP registration from OUTSIDE interface to Inside interface on ASA
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Sep 23, 2012
I have a cisco asa 5520 and suddendley in my Network Monitor tool,(using SNMP) asa's DMZ interface traffic is showing arround 90000 Kbit/s .
i want to check which traffic is flowing throgh this interface.(Ip address details)
Note : There is no impact on asa CPU usage.
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Jan 3, 2012
From ASA 5520 we tested the interface failover it not working even the interface are getting monitor .
primary is active.
Manually we shut the outside interface of the primary device configuration is getting reflecting in secondary as outside interface shut. Interface failover not happen.
ii All the interface are getting monitor when we gave command sh failover. even though when we shut outside interface failove not happening.
how to do the interface failover in ASA 8.4 version.
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Jul 12, 2012
I know this issue probably has been beat to death, but I have yet to find the answer to my situation. We recently upgraded from a PIX515e to ASA5520. Shortly after the install I noticed a problem with the servers on our DMZ. This problem was NOT present with our old 515e. The problem is that there seems to be a communication problem between servers on the DMZ, specifically when I try to open the web server homepage from my mail server, I get time-outs. When I ping between the two in either direction, I get time-outs. This might seem trivial, but I have other data servers on the DMZ that need to communicate between themselves.
When we question the tech that performed the install, his answer was that there might be a problem with the switch the servers are connected to, or the servers might have a virus. He stated the process of ping should never involve the DMZ interface. And yes, our DMZ interface IP is the gateway for the servers. Now, if the DMZ (ASA) should never come into play with a ping, why when I turned on logging did I receive the error below? It sounds to me that the ping is going through the interface. Here are a few of the errors on the DMZ with the specific server IPs.
july 13 2012 12:50:04 106014 10.10.0.10 10.10.0.5 Deny inbound icmp src dmz1 10.10.0.10 dst dmz1 10.10.0.5 type 8, code 0
The ping problem was only used as an example the demonstrate that there is a comm problem on the DMZ. ASA is running in router mode.
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