Cisco Firewall :: ASA 5550 - Configuring Sub-interfaces On Management Interface

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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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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Cisco Firewall :: How Many Outside Interfaces Are Allowed On ASA 5550

Apr 26, 2011

I am using an ASA5550 for a complex secure network that has at least six "outside" networks.  Each "outside" network is assigned to a specific port each set at level "0".  I also have a DMZ, set to level "50".  I am having difficulty with passing traffic from a host in the DMZ to all but one of the "outside" networks.  Is there a limit to the number of "outside" interfaces?  I will provide a redacted config file as soon as possible.

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Cisco WAN :: Configuring SSH On ASR1002 / Apply To Management Interface?

Jun 30, 2010

How to configure SSH on a ASR 1002 and apply it to the Management Interface?

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Cisco Firewall :: ASA 5550 - Interface Failover / Interface Goes Down

Mar 18, 2013

I've got a ASA 5550 firewall interface failover issue. (File attached).
 
when I shut down the inside interface Gi 1/1 of the left firewall(Active firewall), It failed to failover. but when I shut down the Gi 1/12 of the Core 1 switch, The firewall failover very well.
 
I followed this guide but I was not able to failover. [URL]
 
how can I configure so that when the Gi 1/1 or Gi 1/0 interface goes down, it can failover ? Code...

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Cisco Firewall :: Configuring NAT Port Forwarding Failover On ASA 5550

Mar 26, 2011

I've two Cisco ASA 5550 firewall. I'm don't have much knowlege on configuring this kind of firewall. I need configuring these firewall for simple NAT. I have 3 public IP address. I would like to allow server's inside of the firewall to be able to connect to internet using private address. A basic NAT. Also need to configure some port forwarding. We've bought two firewall for the Active/Active failover support. How can i configure this through ASDM? My ASDM version is 5.2.

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Cisco Firewall :: Configuring ASA Simulation Interfaces On GNS3

May 25, 2012

I have managed to simulate to Cisco ASA's on GNS3 - ASA1 and ASA2. ASA2 is configured as multiple mode to enable contexts while ASA2 has been configured as single mode.
 
On ASA2 I can assign an IP address to its gigabitethernet interfaces as normal, however I'm unable to assign an interface to the gigabitethernet interfaces on ASA1.

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Cisco Firewall :: ASA 5550 Module 1 Interface

Oct 25, 2011

Is it possible to use ports from 2 SFP and 2 RJ45 Interface on ASA 5550 Module 1.

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Cisco Firewall :: ASA 5550 Inside Interface Hangs

Apr 24, 2012

the inside interface on our primary ASA seemed to "hang". It dropped all the packets it received. Because the interface didnt go down, failover didn't happen. Device's info;

-Cisco Adaptive Security Appliance Software Version 8.2(3)
-Device Manager Version 6.3(3)
-Hardware:   ASA5550, 4096 MB RAM, CPU Pentium 4 3000 MHz
-Internal ATA Compact Flash, 256MB
-BIOS Flash Firmware Hub @ 0xffe00000, 1024KB
 
I attached a capture picture shows that traffic didnt go to the roof when the issue happened. Why the interface would "freeze" randomly?

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Cisco Firewall :: ASA 5550 To Setup Unit / Cannot Configure IP In Interface

Nov 12, 2011

I am normally only doing IOS config. I have little problem when trying to setup this unit.,It boots ASA software 8.0.4 fine.,When i go to enable mode and into configuration mode and try to configure ip on an interface i have a problem.,

ciscoasa(config)# intciscoasa(config)# interface manciscoasa(config)# interface management 0/0ciscoasa(config-if)# ?,Interface configuration commands:  default      Set a command to its defaults  description  Interface specific description  dhcp         Configure parameters for DHCP client  duplex       Configure duplex operation  exit         Exit from,interface configuration mode         Interactive help for interface subcommands  no           Negate a command or set its defaults  shutdown    ,Shutdown the selected interface  speed        Configure speed operationciscoasa(config-if)#

I did try to upload the new software 8.4.2 from rommon using TFTP. ,It boots 8.4.2 fine, but  have same problem as in 8.0.4.,I did try to create a user haveing priv 15 and logging on as that user. It gives the same.,The firewall is not in transparent mode.

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Cisco Firewall :: ASA 5550 / RFC 1918 - Tunnel Terminates At Outside Interface

Aug 2, 2011

I've recently set up a LAN-2-LAN VPN tunnel to a 3rd party service provider who uses RFC 1918 private addressing internally and cannot perform NAT on their side of the tunnel.  In order to avoid conflicts with our address space I've had to implement DNAT for the address on the 3rd party network that users at my end must access.  The tunnel terminates at my end on the outside interface of an ASA-5550 running 8.4.2.  While the ASA has 8 interfaces at security levels between 0 and 100, DNAT only need occur for traffic flowing from inside (100) to outside (0).

The following (redacted) addressing applies:

Address of the server on the 3rd party provider network: 192.168.2.155

Mapped address of server as seen on the network at my end: 10.168.2.155

I've currently implemented DNAT using object NAT as follows:

object network remote-server
host 192.168.2.155
nat (outside,inside) static 10.168.2.155

This works as expected, however in examples and discussion I've seen, it appears that the typical way to configure NAT for this scenario is with manual NAT as follows:

object network remote-server
host 192.168.2.155

object network remote-server-mapped
host 10.168.2.155

nat (inside,outside) source static any any destination static remote-server-mapped remote-server
 
Is there any reason why I should consider using the manual NAT method rather than the object NAT method in this scenario?Are there any technical reasons why using object NAT in this manner should be avoided?

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Cisco Firewall :: ASA 5550 Switch - Change Media Type Command On Interface

Oct 12, 2011

I am switching a switch connecting to the ASA5550 tomorrow. My current switch is using fiber connecting to the ASA. The new one only support copper. If I switch between fiber to copper on the ASA (change media-type command on interface) will it cause a down time? I have VPN tunnel on the ASA and don't want the session to reset.

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Cisco Firewall :: ASA 5520 - Routed Management Interface On Transparent Firewall?

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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Cisco Firewall :: DMZ Sub Interfaces Into Sub Interface Of Asa5510

Jul 5, 2012

We have ASA FW 5010 in our organization and we have 4 DMZ's under the DMZ interface on ASA and all DMZ's are created on sub interfaces and assigned different VLANS on each DMZ's.

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Cisco Firewall :: ASA 5510 - Management Interface

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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Cisco Firewall :: ASA5512-X Setup Using Management Interface

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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Cisco Firewall :: ASA5540 Management Interface IP Addressing?

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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Cisco Firewall :: Management Interface In Cluster ASA 5515x?

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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Cisco Firewall :: ASA5510 - Cannot SSH Or ASDM To Management Interface

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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Cisco Firewall :: ASA5520 Use Management Interface As Regular

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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Cisco Firewall :: 5520 Recreate Logical Interfaces For Each Physical Interface

Nov 29, 2012

We have to enable FIPS 140-2 on our ASA5520's for all our IPSEC VPN connections.   We currently have failover on our 5520's. I found a lot of information out there but some seems to conflict one another.What are the things I need to look out for - caveats? Does the clients that connect to the VPN had to use different clients once the FIPS was enabled.Do we need to recreate logical interfaces for each physical interface we have?

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Cisco Firewall :: Verification Of Management Interface Usage On 5510

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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Cisco Firewall :: ASA 5510 High Drop Count On Management Interface

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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Cisco Firewall :: Provide Access To The Management Interface / Vlan On ASA 5505

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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Cisco Firewall :: ASA5510 Static Routes For Management Interface Not Working

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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Cisco Firewall :: ASA 5510 / Management Interface Stopped Working After Upgrade?

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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Cisco LAN :: Management Interfaces On 7600 Switches And Its VLANs

Jul 19, 2012

I am using a Catalyst 7600.
 
I set up a VLAN interface (VLAN 3) with an IP-address and I can connect to it using telnet and log in to the switch as admin.I call this my management interface.
 
How come I manage to log into the management interface when the native VLAN is default 1? I thought the native VLAN determines which VLAN I need to log into to access the switch?
 
Can I make management interfaces of all the 48 ports if I want?

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Cisco Wireless :: WLC 5508 Management Interfaces For Wlans And Lag

Sep 3, 2012

I didn't design the job, but is pretty straight forward, except the following, the design has a single wlc 5508 with 2 physical connection between two non cisco switches. There are 2 initial WLANs to be created.   I am ok with most of the wlc config execpt the following:
 
Now from my understanding of everything I have read recently, you can't use LAG on the 2 physical connections if they connect to 2 seperate switches,   unless, although not offically supported, the 2 connections are on either 2 3750s in the same stack or a pair of 6500s running VSS. So I believe that in my case 2 seperate connections from the wlc to 2 non cisco switches will not work with LAG. Is my understanding of this correct?
 
Is there a way to maintain the 2 physical connections from the wlc to the 2 non cisco switches to maintain redundancy?The wlc will have a management interface obviously, but from what I have read, the 2 WLANs that are going to be created have to have their own interface on the WLC. Which I understand as the managment int and each of the 2 WLANs are on different subnets.
 
If I don't use a single uplink to one of the non cisco switches (either 1 or 2 physical connections) using LAG, it appears to me that each of the interfaces ( management, wlan1 and wlan2) need to have a physical connection from the WLC to the switch, with each interface mapped to a physical port on the WLC, so correct me please if I am wrong, but this would mean I need 3 physical connections between the wlc and the swtich?

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Cisco Switches :: Configuring SG-300 28 From Both Web And CLI Interfaces?

Dec 8, 2012

I have been configuring the SG-300 28 from both web and cli interfaces.When doing a sh run I get Int gi2 before int Gi1? WTF?Also one of my vlans wasn't working on interfaces but was working through the assigned trunk port to my other switch.I deleted it and recreated it and it is now working. Why we have a failure and go to reconfigure a switch and have these same issues.

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Cisco WAN :: 891 - Configuring Porting Between Interfaces

Apr 12, 2013

I'm having some trouble configuring porting between interfaces.Here is my situation.I have a Cisco 891 router. What I need is to create 3 interfaces with the next IPs:

1.  Port FastEthernet 8 - 20.40.1.1 - with a modem connected directly to it - 20.40.1.2
2.  Port GigabitEthernet 0 - 193.2.5.100 - connected to a switch - LAN
3.  Ports FastEthernet 0 and 1 for two VOIP phones - 190.168.5.2 and 190.168.5.3 - will be switchported to VLAN 10 - 190.168.5.1

I can send ping from a PC (193.2.5.1) to the modem interface (20.40.1.1) but not to the modem itself (20.40.1.2).I played days with configurations and tried a lot of variation of ip routing and access-lists with no success.Basically I need to comunicate freely betwin all the devices.There are a lot of forums providing solutions to a same problems but they seems not working with the 891 router. Any way, assuming I have a factory resetted router? [code]

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Cisco Switching/Routing :: Nexus 5548UP / Two Management Interfaces For N5k

Jan 10, 2013

I have a Nexus 5548UP that would be managed by two organizations. Is it possible to set IP addresses for mgmt0 and an SVI (or an L3 interface) without using the L3 daughter card? I don't want to route between VLANs, just to separate management traffic.

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Cisco :: 5508 WLC Configuration / Can't Access GUI On Management Interfaces Ip Address

Aug 30, 2011

I've got a new 5508 wireless lan controller and can ping the ip address of the management interface, but can't access the GUI at the management interface's ip address.  I can access the GUI on the service-port interface.  No static routes in the controller; trunk appears to be set up correctly.

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Cisco WAN :: Configuring Interfaces On 2951 Router?

Dec 27, 2011

configuring my Cisco 2951 router. There are three routed interfaces that I need to configure: one for the internal LAN, the second for another private subnet that connects to a Data Centre and the third for the WAN connection. I have configured the Ge0/0 interface as the LAN interface with the internal network 10.17.0.0/24. I have also configured my WAN interface Ge0/1 for internet connectivity. Now, I need to configure the third interface Ge0/2 that will connect to the Data Centre. This will be a private point to point switched ethernet link. The Data Centre will host a secondary domain controlller. So, I want it to be on the same network as the internal LAN, i.e., 10.17.0.0/24. I want to be able to see all other devices that will be located at the Data Centre just like I would see all devices connected to the internal LAN.The problem I am facing is that Cisco 2951 does not allow me to configure two routed interfaces to be on the same subnet. Is there any way to work around this problem and configure both the internal LAN and the Data Centre private network to be on the same subnet.

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