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?
View 2 RepliesI'm having a weird issue with an ASA 5520 (Ver. 8.2) of a customer. The scenario is as follows:
There is a sub net (on a sub interface) "Guest" which basically is allowed unlimited access to the internet. Traffic is source Na Ted through the ASA to the outside interface. This works fine.
There is on the "inside" interface a server which can be accessed from the outside via a public IP address. On the ASA this is implemented as a static NAT entry. This also works fine.
Now the customer wants to access the server on the inside from a client of the "Guest" interface using the public (Na Ted) IP address. Reason for this is, they have an application with hard programmed IP address inside and want to run some life tests. However, this kind of traffic seems not to be passing through the ASA.
What I have tried so far:
- examined, if a hairpin scenario could be applied here, but it seems not, as I have traffic traveling between interfaces not out and in to the same interface.
- enabled the option "enable traffic between two or more interfaces which are configured with same security levels" and also "enable traffic between two or more hosts connected to the same interface"
- when I use the real addresses of the host, it works, so it shouldn't be an issue with the firewall rules
So any reason why I cannot use the public NAT address from any of the other interfaces?
ASA's G0/2 interface is connected to G0/1 interface of a 3560G switch in DMZ, below is the config and diagram
Switch Config
int g0/1
switchport mode trunk
switchport trunk encapsulation dot1q
int vlan 1
ip add 192.168.0.100 255.255.255.0
We are running out of IPs in 192.168.0.X network and planning on creating sub interfaces on the ASA and trunk it to the switch so that we can have multiple V LANs in DMZ. Tried the below config in LAB but that didn't work, can you have a look at it and let me know if I miss anything. No change on the switch config since G0/1 is already a trunk port.
ASA Config
interface GigabitEthernet0/2
description Trunk to DMZ networks
no nameif dmz
[code]...
If I change the V LAN on the switch from 1 to a different V LAN, say V LAN 50 for example, and configure the ASA accordingly its working fine.
How can i enable Netflow for each Vlan Or interface indvidually in Cisco ASA? currently i have setup Netflow and only 2 interfaces are shwoing traffic for Netflow which are not even as my physical or Vlan interfaces . (see screen shot )
EscapeASA# sh interface ip brief
Interface IP-Address OK? Method Status Protocol
Internal-Data0/0 unassigned YES unset up up
[Code].....
Today I run into a problem with enabling ICMP traffice between two inside interfaces on ASA5510 (version 8.2). I tried to ping from 192.168.1.2 to 192.168.2.2 Failed. But I can visit outside websites or ping from any of the two addresses above to 8.8.8.8 So I checked the configuration shown as follow
<omitted>
interface ethernet0/1
nameif inside
[Code]....
I have ASA 5585 with SSP20. I want to enable same security level subinterfaces (routed mode) to communicate with each other.
I have put below command at global level but somehow it is not happening.
hostname(config)# same-security-traffic permit inter-interface
Do I also need to check for NATing or some other things apart from above command?
I have a location where I have 2 WAN links, but without a dynamic routing protocol in between. I want to implement a kind of hub to 2 spokes VPN. But the spokes will actualy be on one single ASA firewall, each spoke on a different interface. One hub-spoke will be primary, the other one the secondary. When the WAN link for the primary VPN fails the secondary should be started on the hub to the other spoke.
View 1 Replies View RelatedI have a machine with two ethernet cards and internet connection, on which Ubuntu 12.04 is installed.Both ethernet cards can take ip adress automatically say,
eth0:47.168.137.14 and eth1:47.168.137.15
I can ping eth0 but can not ping eth1.
Is there a special setting for gettting both ethernet interface active and reachable at the same time.
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.
I`m looking to automate some functions in a web application.Functions like enable/disable interfaces on a Cisco 3550 switch.
View 5 Replies View RelatedWith 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.
View 1 Replies View RelatedI 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.
View 1 Replies View RelatedI 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.).
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.
View 1 Replies View RelatedI have one firewall ASA5520, are very slow
View 3 Replies View RelatedI 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.
View 5 Replies View RelatedWe 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?
View 5 Replies View RelatedWe 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.
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?
View 3 Replies View RelatedGet 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.
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.
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.
View 3 Replies View RelatedMy 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.
View 1 Replies View RelatedAny 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?
I have a simple setup where I have a 2911 router with three interfaces, Inside, Outside and a second "Inside" interface which is labelled as a DMZ. The Zone Firewall applied to the "DMZ" is actually Inside (until I can work through problems). I need to be able to access a device on the DMZ via its external IP so I have designed NAT to use IP Nat Enable commands. This is now working for me fine. However, since utilising IP Nat Enable, my zone firewall now denies return TCP / UDP traffic and consequently I no longer have any internet access. Looking at the syslog messages, the reason for this is that the router is denying these return flows not because they are matching the outside-to-inside policy, but rather they are matching the outside-to-SELF policy. The router seems the detect that the internet traffic is being returned to SELF, when in reality the NAT rule should pick this up and forward it to inside. I can understand why this is happening, because I am NATting all private / inside traffic behind the external IP of the router, which is assigned to the Gi0/0 interface. [code]
View 1 Replies View RelatedI'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]
View 15 Replies View RelatedI 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]
View 3 Replies View RelatedI 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.
View 1 Replies View RelatedI'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?
View 2 Replies View Relatedhow 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
View 1 Replies View RelatedI 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
[code]....
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 0.0.0.0:*. 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?
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.
[URL]
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 ?