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 VPN :: ASA5520 Client-less SSL VPN With Smart-Tunnel

Sep 12, 2012

I have implemented a Clientless SSL VPN solution with Smart-Tunnel feature on Cisco ASA 5520, software 8.4(4)1.I have been successful in making Bookmarks which employ Smart-Tunnel feature to avoid content rewritting (if any). And in reality it works fine with some links. However there are some links to an Oracle portal, it doesn't work.I was able to log into the Oracle portal with its username/password. However when i click into a button of the drop-down menu, nothing happens while normally there should be a box appearing. The Oracle portal runs with some Java stuffs which i don't really know as i am not a programming engineer anyway.

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Cisco VPN :: Up But Not Routing Over Tunnel (1811 To ASA5520)

Oct 9, 2012

I was recently tasked with adding a redundant internet connection for one of our remote sites. this new connection was to be used as the primary connection for the VPN from the site with the existing one being configured as a failover controlled by an IP SLA tracker on the new interface.
The existing connection uses a PPPoE connection configured under Dialer1 associated with FE0 to connect to our ASA. Duplicating this wasn't an option given the hardware that the second ISP provided. They provided a /29 for use; I configured FE2 using a Vlan interface with a host on that subnet.
I duplicated the connection profiles and tunnel groups on our ASA, changing only the Peer IP. Both interfaces on the 1811 are using the same crypto map.
The new connection seems fine and I can reach other hosts on its subnet from both the router and hosts on the inside of the NAT.
The issue happens when I change the default route to use the new connection.
I'm able to reach internet hosts using the new connection and I can see the VPN being established on the ASA while the VPN from the old connection drops, but I can't get traffic to route over the tunnel.
If I remove the default route that uses the new connection the VPN comes back up on the old connection just fine. There's no problem routing over the VPN when it uses that connection, just the new one.
Relevant config from show run:
crypto isakmp policy 10
encr aes 256


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Cisco VPN :: ASA5520 - Adding New Network To Existing Tunnel

Apr 10, 2012

We have an ASA5520 version 8.3(1) We have an existing VPN tunnel between us and our partner site. We need to add a new vlan to our existing VPN tunnel.
Where do we need to add the new vlan to in ASDM interface? Looking through using ASDM, I found 3 places.
Site-to-Site VPN:

1) Connection profiles
2) Advanced > crypto maps
3) ACL Manager

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Cisco VPN :: Create VPN Tunnel Between ASA5520 And 2921 Router

Sep 21, 2011

I am getting the following errow message while trying to create a VPN tunnel between an ASA5520 and a 2921 router. [code]

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Cisco VPN :: ASA5520 - IPSEC Tunnel On Android Comes Up But L2TP Doesn't

Jan 25, 2011

We have ASA 5520 running 8.2(3) software and we're trying to make Remote Access VPN (l2tp/ipsec) working from Android. We succeeded in making  IPSEC tunnel (ending "Phase 2 completed"), but we cannot make L2TP tunnel working.We're using RADIUS for L2TP authentication, but ASA doesn't even try to check credentials entered by use. The same set of credentials entered on Windows {XP, VISTA, 7, Mobile} works ok. Which debugging options should we turned on?

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Cisco VPN :: Are Tunnel Mode And Identity Negotiable Between Router And ASA5520

Feb 10, 2011

My remote VPN device (static IP address) is setup to connect on the ASA5520 DMZ interface.

Peers performing L2L IPsec VPN with pre-shared keys sync-up regardless of which identity mode selected. If I set the router to “crypto isakmp identity address” or  “crypto isakmp identity hostname” the ASA still accepts the connection. Also tunnel mode on initiator (router) is set to “TRANSPORT” but negotiates to TUNNEL mode with ASA.

I am able to successfully ping and telnet from a remote device through the router -- ASA5520 VPN tunnel into the HQ hosts so I can see communication is working.Initial ISAKMP negotiation debugs on router (below) shows the differences but the ASA accepts anyway.

-ASA5520 8.0(4) running in router mode
-ASA should only answer, never initiate VPN sessions
-Cisco 2800 router IOS 12.4 Adv Security should always initiate the VPN session.
-Cisco 2800 router does not have option of key-id, only address, hostname and dn.

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Cisco Routers :: ASA5520 And RV042 - Tunnel Get Connected But No Ping / No Traffic Between Both End Network

Sep 13, 2011

I configured ASA5520 and RV042 for site-to-site IPSec VPN tunnel.Tunnel get connected, but no ping, no traffic between both end network.
======= -ASA--------public, static IP address------Cisco 2821--------Internet -RV042-----public, static IP address------Cisco 2821--------Internet
ASA5520 config:
name VPN
interface GigabitEthernet0/1
nameif NET
security-level 100
ip address


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Cisco VPN :: ASA5520 - Access-list For Site-to-Site IPSEC Tunnel

Dec 1, 2011

How can I NAT the same set of four hosts and give them access to two different networks across an IPSEC site-to-site VPN tunnel?  I'm using an ASA5520 running 8.04.
I have four hosts say:
They need access to two different networks:
I woud like to NAT them as something like: 

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Cisco VPN :: Site To Site IPSEc Tunnel Between ASA5520 And IPSO

Aug 10, 2011

I cannot get it to work : if interesting traffic comes ffrom the IPSO side, the box would not even try to set up the tunnel. and If it comes fomr the ASA side, the box attempts to do so but it with this strange message : AM_WAIT_MSG2

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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


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 VPN :: ASA5520 Changing VPN GW In Site-site VPN Tunnel

Jun 14, 2012

I have a site-site VPN tunnel between my location and my remote office. My remote office is changing their ISP, so the VPN GW is getting changed. do i need to create new site-site tunnel again or changing the remote peer VPN GW in my FW is enough? FYI, i have cisco ASA5520 and my remote office has check point UTM-1 edge box.

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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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Cisco Firewall :: How To Enable Not Used Interfaces On ASA5520

May 12, 2011

I have a pair of brand new 5520s I am in the middle of commission.  After carving out all the DMZs etc I needed I realized that I really neede another physical NIC, not just another VLAN off a configured nic. [code]I am running 8.3(2).  How can I turn these "Not used" interfaces into useable ones?

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Cisco Firewall :: ASA5520 Cannot Ping Outside World

May 22, 2013

I have Cisco ASA5520 with  a 8.4 code in GNS3.  I have a problem pinging to the internet.  On the ASA console, I can ping  to outside world, but on vpc  I cannot ping the outside world.  But I can ping the ASA Inside interface and other VLANs, no problem. [code]

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Cisco Firewall :: Access-list On ASA5520

Feb 23, 2011

I have a question about access-lists on ASA: (5520 running 8.4)Often I want to permit all traffic from networks behind an interface (let's say DMZ in this example) to Internet, but NOT to internal networks. Then I  first configure a Deny from DMZ to all internal network and then a Permit to ANY. If I forget the first Deny I will allow all traffic also to my internal networks. Is it possible to configure an access-list that permit all traffic from a network to all networks that are reachable via a given interface? In this example: Permit all traffic from DMZ to all networks that are reachable via the Outside-interface? This should permit traffic to Internet and deny traffic to internal networks in one statement.If I specify the outside-interface as the destination only traffic to the interface itself will be allowed.

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Cisco Firewall :: ASA5520 Not Allowing Traceroute

Oct 31, 2011

I've got an annoying problem with my ASA 5520.I have traffic going from the inside interface (security level 100) to the outside interface (security level 0) with a global PAT applied to the outside interface address for all inside traffic - and I can't seem to traceroute through the firewall.The ruleset is simple - basically, allow any IP from inside to outside. The NAT is simple - PAT all traffic unless exempted to the IP address of the outside interface.If I do the trace from my internet edge router it works fine - so I know it's not soemthing my uplinks are filtering - but if I do it through the firewall, I get perfect responses until the hop where it hits the firewall interface - then nothing.Is there something I am missing that I need to do to allow traceroute to just work with all the rest of the traffic?

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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 :: Inspect Not Working In ASA5520?

Aug 15, 2012

I have a cisco ASA5520 box running with IOS version8.2(5)13 where default policy map is applied globally. But I have not seen any traffic being inspected through included protocol defined under policy map.All configuration seems to be ok for me.
service-policy global_policy global
 Global policy:
  Service-policy: global_policy
Class-map: inspection_default
Inspect: ftp, packet 0, drop 0, reset-drop 0


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Cisco Firewall :: SSH Stopped Working On ASA5520?

Mar 27, 2012

I can no longer SSH to a primary active firewall. It had all of a sudden stopped working.  However I am able to SSH to the secondary standby firewall without any problems. I did try to regenerate the RSA key on the primary fw, but still unable to connect. The only way I can connect to it is by using telnet.
I ran the "show asp table socket" command and I'm seeing port 22 listening on the primary IP address (not the standby), foreign address is*. I did a packet capture on port 22 on the inside inside, seeing my request hit the fw and then right away a reset back from the fw.
version 8.2.(5)
model ASA5520
I'm hitting a bug in the software version I'm running? Or what else can I check before rebooting the primary fw?

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Cisco Firewall :: Zero Downtime IOS Upgrade On ASA5520

Jun 5, 2011

We are planning to upgrade IOS on a 5520 pair, from 7.2.4 to 8.2.4, and cause minimum outage. And according to the documentation, we can do the zero downtime IOS upgrade by failing over to the standby ASA and back.
So, can during this process, can we go from 7.2.5 to 8.0.5 (last maintenance release), or do we have to move to 8.0.2 first ?

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Cisco Firewall :: ASA5520 And Public IP Zone

Apr 5, 2011

I'm trying to setup a zone behind my firewall with complete publicly routeable IP addresses for 3 servers. The reason I'm doing this is I am in the network setup stage of an OCS implementation, and OCS connections don't behave well with NAT.
My device is a ASA5520. I have an internal zone, and a dmz zone. These are done via standard NAT configurations.
My question is this:
Is it possible to setup connectivity to the outside with internal servers that have Public IP's directly on their NIC's? Another little detail of interest is that this ip space is seperate than the one that's on current Outside interface facing our ISP. However we own both address space.

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