Cisco Firewall :: How To Verify If CG-NMS Is Enabled On ASA5520

Apr 11, 2013

how do I verify if CG-NMS is enabled on ASA5520. I just need to know if it's enable/install to be enabled and used?Cisco Adaptive Security Appliance Software Version 8.0(5)28..Device Manager Version 6.1(5)51

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Cisco Firewall :: ASA 8.4 What Commands Can Use To Verify Related Configuration On Firewall

Apr 7, 2013

We have an ASA with 8.4(5) version. we had detected that few ip's were getting shunned ,to overcome the problem no shun was used and the traffic normalised.But, the same problem re-occured a few days after that with logs showing traffic being shunned.
 
is there any fixed way to get rid of this. what commands can i use to verify related configuration on the firewall.

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Cisco Firewall :: ASA5520 To ASA5520 Via L2L Tunnel

May 31, 2011

Our firewall expert has gone off on long term illness leave and I am trying to pick up the pieces :-(
 
We have an ASA 5520 (local office) talking to another ASA (remote office) via a VPN Tunnel.
 
My 1st problem is that I cannot ping from my inside network (local) to the outside interface of my remote ASA.
 
My 2nd is that I have debug enabled on my rules but am not logging anything.

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Cisco Firewall :: ASA 5510 / How To Verify That RPF Disabled On Particular Interface

Feb 24, 2011

I have disabled Unicast RPF on a Cisco ASA 5510 for one specific interface. However, how do I verify that RPF indeed has been disabled on that particular interface? It doesn't show up in the config, neither does it up when I issue the command "sh int interface'.
 
To disable the RPF feature, I issued the following command: no ip verify reverse-path interface interface_name

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Cisco Firewall :: Verify Idle-timeout On ASA 5510?

Apr 13, 2011

How to verify on the asa 5510 , the vpn-idle timeout,is running on default setting(30mts)

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Cisco Firewall :: 5510 - Verify Wrong Password For VPN Users?

Apr 8, 2011

when u use the debug cryoto isakmp 127 on the asa 5510, in order to troubleshhot remote access vpn users,to which entry r u looking in the debug to see if the user enter wrong password?

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Cisco Firewall :: ASA5520 Bypass All Network Through Firewall

Dec 22, 2011

With regarding to the firewall ASA5520, i'm using it in my network, all the confiuration are properly configured and working but with the use of proxy address in internet explorer(e.:206.53.155.129/3128) all the blocked contents as easily accessible simply it bypass all the network through firewall.so will u guide me to block the proxy servers.

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Cisco Routers :: 881 With Firewall Features Enabled

Jul 13, 2012

I am doing a security assessment of an organization that uses 871/881 routers with the firewall features enabled.  I see the following commands defining packet inspection done by the firewall software.
 
-ip inspect name inet-users tcp
-ip inspect name inet-users udp
-ip inspect name inet-users icmp
 
What I am trying to define is the inspect name "inet-users".  It is obviously a constant defined by IOS as it is not defined anywhere in the configuration file like any other "variable" and does not generate an error.What does "inet-users" define?  I'm assuming it is all users using the interface(s) where the inspect commands are used, but is that correct?  The Cisco IOS manuals do not contain a reference to "inet-users" hence why I'm here asking.

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Cisco Routers :: RV042 - Firewall And SPI Enabled

Jan 14, 2013

this is regarding my RV042. Its firmware version is v4.1.1.01-sp (Dec 6 2011 20:03:18), unchanged from how I received it. I purchased less than a month ago. I have a problem wherein the firewall behavior is not what I expect it to be, where I expect only allowed ports/services to be open to a given private IP from the outside but am finding that all are open to that private IP!
 
Let me describe the current configuration. I am going to blank out all digits of the public IP addresses when discussing them except for the final digits for security reasons.Router's WAN1 is set up as static, X.X.X.189. This is part of my public IP block. WAN2 is disabled. One-to-One NAT is enabled. Three instances of it are set up. One, for example is 192.0.2.89 (a private IP) mapped to X.X.X.180, a public IP, part of our public block. Forwarding is not enabled. There is no DMZ Host. That is set to 192.0.2.0. Firewall and SPI are Enabled. Access Rules for the firewall are set up in addition to the default rules which are present to Deny all traffic with WAN1 and WAN2 as the source from any source to any destination. This to me means that unless I set up Allow actions, there should be no access from the outside, WAN1. As an example of one of my Allow rules, I have this:

Action: Allow
Service: HTTP
Log: Not log
Source interface: WAN1
Source IP: ANY
Destination IP: Single, 192.0.2.89
Time: Always

My problem: My expectation is that based on the One-to-One NAT setting, the public IP X.X.X.180 is now associated with the private IP 192.0.2.89, but nothing from public to private is allowed unless allowed by the firewall, which is only set to allow HTTP / port 80 to 192.0.2.89. But the behavior is that 192.0.2.89 is, as presently configured, open to everything from the associated public IP, not just port 80, but all ports! It is as if my firewall rules have no impact whatsoever.

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Cisco Firewall :: Keep ASA5520 Firewall In Sync

Aug 22, 2011

I have two asa 5520 firewalls. one at my primary data center connected to our production Internet feed, and one at my fail over data center connected to a backup internet feed. I was wondering if there was an easy way to keep the firewall rules in sync between the two firewalls. We have failover with our isp that will move our public facing address block from our primary site to our dr site in the event of a disaster so the ip addresses will not change if we were to have to fail over to the DR site. currently i just have to do any changes that i make on the fail over server but would like a way to at least simi-automat this if not fully automat this so that i can eliminate the possibility of human error of a change happening at primary but never getting don at DR.

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Cisco Firewall :: Upgrade ASA 5550 With NAT Controller Enabled

Dec 29, 2011

I should upgrade ASA 5550 with nat controller enabled, from 7.2 to 8.x, I've been reading nat is differently configured up from release 8.3. So I choosed to upgrade to 8.2 release.

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D-Link DIR-615 :: DSL-526B Can Firewall And NAT Remain Enabled

May 11, 2011

I am using the router DIR-825 together with a modem-router DSL-526B. After reading many posts, I understand that I have to bridge the DSL-526B and use the more complete DIR-825 under PPOE to connect to Internet. However, when bridging the DSL-526B, the settings are showing after setup that the firewall and NAT are enabled whereas, when looking at the quick bridging setup in the manual, it seems that they should be disabled. My questions are therefore:

In bridging mode, can the firewall and NAT remain enabled, what can possibly create a conflict with those of the DIR-825 or create complication? If yes, how to disable them, as no option for doing it in the briging quick set up?

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Cisco Firewall :: 2821 - High Latency With IOS Url Filtering Enabled

Aug 20, 2011

Im notice after configure the trend micro url filtering on a Cisco 2821 high latency on Http navigation, the latency on the ping for the requests shows a 245ms latency, but if i disable this feature on the router, returns to normal navigation and decrease the latency up to 70ms.

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Cisco Routers :: RV082 And Packet Loss On PBX With Firewall Enabled?

Aug 28, 2012

Recent incountered an issue with our elastix pbx and packet loss. Noticed this morning that when I turn on the firewall on our RV082, packet loss begins around the level 3 servers I see in my traceroute, and then slow spread out to all hops. When I turn the firewall back off, all hops have no packet loss or less than 1%. The weird part is, previously, I had the firewall enabled, and never had this issue.

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Cisco Routers :: RV042 Opens Ports 80 And 443 When HTTPS Enabled In Firewall?

Nov 15, 2011

I recently installed an RV042 v1.1 vpn router (older hardware revision but using the latest available firmware 1.3.12.19-tm) and set up VPN access with the QuickVPN client.  QuickVPN requires that the HTTPS setting be enabled under the Firewall options, so I did.  I then scanned our static IP with grc.com's ShieldsUP! to check for open or non-stealthed ports and discovered that ports 80 and 443 show as wide open, while port 113 is closed but not stealthed.  If I disable the HTTPS setting under Firewall, then ports 80 and 443 become stealthed.  Is there any way to use QuickVPN and keep these ports stealthed?

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Cisco Firewall :: Enabling RIP On PIX 535 / Error / OSPF / RIP Cannot Be Enabled On Failover Interface

Jun 29, 2012

I am getting this error on my PIX 535 with 8.0.4 code. The error is Error : OSPF/RIP cannot be enabled on failover interface, I am getting this error while trying to enable RIP on the firewall. The context is single mode and failover is enabled. When I am disabling the failover the Firewall is accepting the RIP configurations.

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Cisco Firewall :: Cannot Access FWSM Via Session Command In 6513 (VSS Enabled)

Apr 24, 2012

Today i received FWSM from cisco (RMA), I need to configure it as standby unit for existing FWSM active/standby setup.
 
IOS on RMAed FWSM is 2.3.4 and  cisco VSS supports FWSM IOS 4.0.4 and later.My issue is, I cannot access FWSM (IOS 2.3.4) via session command from cisco 6513 but could successfully consoled it without any problem. I have reloaded it twice and also tried to disable and enable power on it.
 
VSS#sh module switch 2
 Switch Number:     2   Role:  Virtual Switch Standby
Mod Ports Card Type                              Model              Serial No.
--- ----- -------------------------------------- ------------------ -----------
   2    6  Firewall Module                        WS-SVC-FWM-1  -----------

[code]....

why I cannot access FWSM through session command ?Whether this is because of older IOS ? If yes then how to upgrade its IOS ?Is it possible to upgrade IOS via FWSM console ? if yes, Do i need to test on different slot ? 

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Cisco Routers :: RV082 V03 Randomly Connection Lost When Firewall Enabled

Sep 11, 2012

Hardware: RV082 V03
Firmware: RV0XX-v4.2.1.02
Lan: 192.168.1.0/255
Static routing: 192.168.1.239 to 172.25.152.64/224

The unit is configured as internet gateway. 4 NAT ports are active. When firewall disabled all works fine. When firewall enabled I do get connection lost at random interval. In firewall only 4 rules added to the default 3 rules. The added rules are:

1/ permit 192.168.1.22 port 25 to any
2/ permit 192.168.1.27 port 25 to any
3/ permit 192.168.1.10 port 25 to any
4/ deny any port 25 to any
 
I do get at random times connection lost when navigating with windows explorer on a PC with IP 192.168.1.x to a share on a PC with IP 172.25.152.74. The same happens when copying files.  Sometimes it works, later it fails or reties are needed.  When the firewall is switched off all runs fine.

Ping from 192.168.1.x to 172.25.152.74 allways give a <1ms response
 
Is there a RV082 perfomance problem or do I have a configuration problem?

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Cisco Firewall :: Block Gtalk On New 2911 Security Enabled Router?

May 8, 2010

I want to block gtalk on my new cisco 2911 security enabled router.

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Cisco Firewall :: Only One Internet IP Can Be Used In Asa5520?

Sep 25, 2011

I have a asa5520 with five Internet IP.One for the internet interface and the others are static maped to dmz hosts. It runs rightly until yesterday.Now it will lose the connection to the gateway many times everyday and the dmz hosts can not connect to internet any time. configuration(simplified):
 
!
interface GigabitEthernet0/0
nameif internet
security-level 0

[Code]....

I called ISP to check,when ISP clear their router's ARP, the asa will lose the connection at the same time and then the ISP's router couldn't learn the ASA's MAC. After I 'clear arp' manually,The ISP's router can learn the ASA's MAC and the connection recovered,but the DMZ's cann't access internet still (of course,There is no problem between DMZ and ASA ,I ping the internet gateway from DMZ host and can not get any reply.).

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Cisco Firewall :: Upgrade 8.2.2 On ASA5520?

Oct 3, 2011

We have 2 x ASA5520 and I upgraded this to 8.2.2 last year, I see 8.2.5 and now 8.4 is out.  If we are having no issues, is it best just to leave it as it is?  I can see a couple of features I may find useful in 8.2.5, but 8.4 seems like a huge jump and a risky one too.

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Cisco :: Firewall ASA5520 Is Very Slow

May 8, 2011

I have one firewall ASA5520, are very slow

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Cisco Firewall :: Cannot Ping ASA5520 From LAN

Mar 7, 2011

I am trying to introduce an ASA5520 to my network based on the following diagram: ISP Internet ------> ASA5520 ------- > Cisco Router ------> LAN. The problem is I cannot ping the ASA from the LAN. I can ping it from  inside the router.  I already allow ICMP within ASA. If i remove the  cisco router and replace it by a swich, I can ping the ASA with NO problem.

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Cisco Firewall :: ASA5520 With Different CPU Type?

May 16, 2011

We want to use ASA5520 but both Firewall have different CPU. One has CPU Pentium 4 2400 MHz and another has Pentium 4 Celeron 2000 MHz. Can it be configured for replica / failover?

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Cisco Firewall :: LAN To LAN Between ASA5520 Version 8.3 And PIX?

Apr 19, 2011

We have 2 firewalls on PIX facing the Internet and connected to interface e1 (behind it) an ASA version 8.3 Both the PIX (Firewall facing) and the ASA are on the same subnet.
 
By using Routing statements and statics I have been able to reroute specific traffic to the ASA5520 version 8.3 Now I need to inverse the 2 devices. The ASA5520 will be facing the Internet and the PIX will be behind it.Unfortunately the ASA5520 is refusing to route the traffic to the PIX. The access-lists are open accordingly and a NAT on the ASA has been created.

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Cisco Firewall :: Client Uses ISP DNS Under ASA5520?

May 31, 2013

i have my router connected to ISP then my router directly connected to my ASA5520....i use also ASA5520 as my DHCP Server and i was wondering with the DHCP Server function of ASA 5520 because if i use the ASA 5520 LAN ip ...all workstation will not be able to browse anything from the internet unless i use my ISP DNS IP which they gave me?

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Cisco Firewall :: Using CSC SSM 6.6.1125.0 With ASA5520 8.4(4)1?

Sep 4, 2012

Get the following log message on secondary ASA console output when turning on the ASA failover function?
 
"Mate's service module (CSC SSM 6.6.1125.0) on slot 1 is different from mine (CSC SSM 6.6.1125.0)"
 
After that the secondary cannot join as a failover unit and shows in disabled status.We have the same model ASA & CSC module and each pair of them are in same firmware (CSC 6.6.1125.0 with ASA5520 8.4(4)1), when I shutdown both the csc modules, the ASA failover works fine.

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Cisco Firewall :: ASA5520 To Act As Web Proxy

Dec 15, 2012

I am using a squid proxy behind an ASA5520 firewall to collect the users to the internet. Squid is just necessary to log what is going on in order to find a quick solution when the internet slows down.
 
Considering that I have unlimited licenses and I would like to get rid of squid, I wonder if the ASA has some functionalities to track which websites are being used and how much traffic is generated. If there is not, I would like to know if Cisco offers a good product to replace Squid.

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Cisco Firewall :: ASA5520 Upgrade 7.2 To 8.4

Jun 8, 2011

Upgraded an ASA5520 from 7.x to 8.4 in one step? Release notes for 8.4 state that you can "...upgrade from any previous release directly to 8.4..."  I've read the previous version release notes and see the various changes in NAT etc that 8.3 made.

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Cisco :: ASA5520 / Two Firewall Are Unknown On LMS 4.0.1

Jul 5, 2011

My customer had 2 asa5520 version:8.0(5)20 and LMS 4.0.1.Two Firewall are "unknow" on LMS, why ?Normally, LMS manages ASA with version 7 min.

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Cisco Firewall :: ASA5520 VPN Support Over DSL

Jan 5, 2012

Any limits on the number of IPSec sessions an ASA5520 can support over a DSL connection?
 
Currently, as we increase the number of IPSec VPN tunnels, our LAN switches connected to the DSL/ASA start seeing CRC/input errors.   Tried different LAN ports for both DSL/ASA connections - same reults (CRCs and errors).   Swapped ASA for PC running 1 IPSEC w/HD video and no issues.
 
VPN connection bandwidth demand 50% of DSL capacity, so not exceeding DSL bandwidth.    Errors get so bad that all VPN sessions drop - sometimes VPN sessions re-establish while other instances a DSL modem reboot is required.
   
cause of LAN switch connections seeing errors with 4+ VPN sessions established on ASA across a DSL Internet circuit?

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Cisco Routers :: RV042 Port Forwarding Stops Working When Firewall Is Enabled

Jun 4, 2013

I have a RV042 router on a single WAN and an internal LAN. I have configured port forwarding as follows: HTTP[TCP/80~80]->10.0.0.6HTTPS[TCP/443~443]->10.0.0.6IMAP[TCP/143~143]->10.0.0.5IMAP SSL[TCP/993~993]->10.0.0.5SMTP SSL[TCP/587~587]->10.0.0.5
 
Everything works just fine when I have the firewall DISABLED. However, when I enable it the behaviour is erratic. 1 out of 10 attempts to connect to ANY port forwarded works. Almost all attempts time out. Notice that this happens even if using only the default firewall rules (which should be bypassed by the port forwarding as I read in other posts).
 
My second try was to create firewall rules manually, overriding the default ones. I tried adding rules from source WAN1 (where my connection is) to ANY and to SINGLE IP's on every port. Nothing seems to work.
 
I don't know what I'm doing wrong, this is really bugging me. I had to turn the firewall off so we can access our servers from outside the office. This shouldn't have to be done.
 
Just found out that my firewall is getting LOTS and LOTS of Blocked - SYN Flood entries. I think this is why we are having trouble with the firewall. Could this be the problem? I have no idea where all these SYN packets are coming from since they appear with spoofed IPs or come from different bots all over.

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Cisco Firewall :: Cut-Through Proxy Not Working With ASA5520

Jan 16, 2012

I'm trying to configure an ASA 5520 with cut-through proxy feature. The user is required to be authenticated when trying to access an outside resource from the inside. This is a test lab before it is implemented in production. [code]

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