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.
i allowed one of internal ip using static nat and public ip is 203.18.137.22 and i want to check which IP are hit this public ip ?Is there is any command to check which ip is hitting 203.18.137.22? I have the cisco 5520 asa firewall.
View 6 Replies View Relatedi am using asa821-k8.bin image, in my cisco 5520, How can i check if my IOS is vulnerable ?
View 4 Replies View Relatedhow can i check that ASA is passing traffic? Also what command we can use to make sure VPN is working fine.
View 2 Replies View RelatedNeed to check how many tunnels IPSEC are running over ASA 5520.Tried commands which we use on Routers no luck?
View 6 Replies View RelatedI 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?
View 1 Replies View RelatedWe 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.
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].....
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.
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.
View 4 Replies View RelatedOn 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]....
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?
View 1 Replies View RelatedI 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
I'm trying to NAT SIP registration from OUTSIDE interface to Inside interface on ASA
View 1 Replies View RelatedFrom 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.
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.
I have inherited an ASA 5520. In doing some auditing of the setup, I have noticed a Static Route that has the inside interface of the ASA as the Gateway IP. I am trying to understand the purpose of this route or why a route would be setup this way.
Example Static Route:
Inside 10.xx.31.0 255.255.255.0 10.xx.xx.10 (10.xx.xx.10 is the inside interface of ASA)
We have ASA 5520 firewall.For broadband Internet access, we have T1 Router(edge router provided by ISP) which provides public IP's 198.24.210.224 / 29. We have usable public IP's 198.24.210.226 - 198.24.210.230 with default gateway 198.24.210.225. We assigned 198.24.210.230 255.255.255.0 to the outside interface.
If we connect the ASA 5520 outside interface directly to T1 router, can all packets with destination addresses 198.24.210.224/29 reach the outside interface without using other device like another router or switches?I just assume that only packets with destination address 198.24.210.230(outside interface ip) can reach the outside interface from the edge router.Is it wrong assumption? If it is correct, then is there any way to route all packets with destination address 198.24.210.224/29 to the outside interface?
We already have a subnet defined to inside interface and is in produciton. the default gateway is this interface ip. In that setup now I have to add one more subnet and as the first subnet is been defined in ASA indside interface, I have to assign secondary Ip to the inside interface so that new subnet users can easily reach here and go outside.
View 1 Replies View RelatedWe want to achieve a load balancing scenario using Virtual IP on DMZ interface on a Cisco ASA 5520.
The IPs we are going to use on DMZ are 10.15.1.2 and 10.15.1.3
These IPs are going to be NATted to all inside IPs.
Lets say our outside IP is X.X.X.X
This IP points to 10.15.1.2 and 10.15.1.3 with .2 being the primary and .3 being the secondary. When I hit the outside IP, it should point me to .2 and that .2 should take me to the inside IPs.
I'm trying to route all default traffic from my production environment through my ASA 5520 on the "outside2" interface.The 5520 has a site to site VPN to our DR site on the "outside/inside" interfaces via one ISP. On another ISP, interfaces "outside2/inside2" go to the internet.
When I make my 3750 stack default route for the inside2 interface IP I cannot get to the internet. When it is pointed to the inside interface on my 5505, I can.
I get the following errors when I try to open google.com from a production server:Why is the 5520 trying to use the "outside" interface instead of the "outside2" interface to go out?
I'm trying to attach tacacs server (ACS Version 5.2) in server group on ASA 5520 (Version 8.4). When I test connection in ASDM (Version 6.4) between ASA and ACS it fails. The log message on ASA is:
%ASA-2-106016: Deny IP spoof from (10.8.27.126) to 10.8.48.10 on interface inside.
Packet-tracer from ASA is:
InternetASA# packet-tracer input inside tcp 10.8.27.126 4444 10.8.48.10 49
Phase: 1
Type: CAPTURE
Subtype:
Result: ALLOW
Config:
Additional Information:
MAC Access list
[code]....
What access-list or implicit rule may be the reason of denying these packets?
I recently upgraded my 5520 to 9.0.1 IOS. Today I tried to apply a capture to my inside interface referencing a simple ACL and I get this error.
ERROR: Capture doesn't support access-list <capin> containing mixed policies
I also created a capture for the outside interface with a similar ACL and it worked just fine. I can't seem to find anything on the web that gives me a clue to resolving the error above.
I have a Cisco ASA 5520 (Ver 8.2(4)) with all four interfaces in use (Public, Private, DMZ, Local offices) and an IPS module, so there are no spare interfaces. I have used all of Public IP's on the current interface for various services (these need one to one mapping, so I can't port map mainly due to SSL certificate issues) and I need to add another Public IP range. The secondary option on ASA interfaces does not exist as on routers/switches and I need to use an additional non contiguous IP address range for additional services advertised on the Public interface that are NAT'd to be servers in my DMZ.
I have seen an example of adding a static arp on the Private interface to allow a secondary gateway to be used for outbound traffic, but I need to allow 14 new IP addresses to be NAT'd from the Public to DMZ and possibly also for outbound NAT'ing (from either Private or DMZ to the Public). I have a L2 switch between the ISP router and the firewall, so using VLAN's is not an option unless the ISP can be persuaded (highly unlikey) to add the seondary IP's as a sub interface with tagging. Anyway if this was actioned then we would have a massive outage on our current IP range during the transistion.
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?
View 1 Replies View RelatedI am unable to ping inside interface (Rin) to outside interface (Rout) of my Cisco ASA 5520 runing on ASA Version 8.4(1).
ASA Version 8.4(1)
!
hostname FW5520
[Code].....
Currently l have two ASA 5520's in a active/passive failover scenario. Currently the interfaces for the inside and outside are fixed at 100/FULL.I want to repatch them into GigE ports setup as Auto Negotiate.Is there anyway of keeping the connections through the firewall active in this type of scenrio or will l have downtime disconnecting and repatching? or could l possibly disable failover and reconfigure each ?
View 6 Replies View RelatedI have an issue where our ASA 5520 is impacting upload (from LAN to internet) speed. We have a 100Mbps SDSL internet link and only see around 45-50 Mbps on the upload when going via the firewall, download is around 90+ Mbps so that is acceptable. I have tested a laptop connected directly to the internet router and that give near on the 100Mbps up and down speeds, but if I put that laptop on the LAN or directly onto the firewall interface I only see 90Mbps down and 45Mbps up. I have check that the interface speeds/duplex on the firewall, switch and laptop are correct and also checked there are no errors on the ports. I also turned off the IPS and that made no difference. In addition I have checked the CPU during download/upload (max): CPU utilization for 5 seconds = 9%; 1 minute: 3%; 5 minutes: 1%
In theory the 5520 should be able to cope with this throughput:
Cisco ASA 5500 Series Model/License: 5520
Maximum firewall throughput (Mbps): 450 Mbps
Maximum firewall connections: 280,000
[Code].....
I have a asa 5520 with an outside and backup interface. I am trying to configure two static nat statements from the inside to the outside and backup interface. Here is what I have configured so far.
object network obj-10.1.1.254
host 10.1.1.254
object network obj-10.1.1.254
nat (inside,outside) static 172.25.10.3
I want to also use nat (inside,backup) static 172.25.10.3
I have an ASA 5520 and I'm using Solar winds real time interface tool to monitor the through put of the port. It seems I can never get it to use more than 100mb, where should I check?
I have run a sh int giga 0/1 and it shows the port is 1000mb full duplex and the I have also checked the other end where it plugs into the LAN and this also says the port is running at 1000mb full duplex.
While user's connecting through AnyConnect, AnyConnect doesn`t check endpoint attributes. I've configured checking process of "notepad.exe", but it doesn`t work. There is no checking process of "notepad.exe" in output debug dab trace (see attach).
ASA 5520 ver 8.4(1)
AnyConnect 3.1.02040
HostScan 3.1.02043
CSD 3.6.6234
Got an ASA5505 connected to another endpoint running IPsec and being NAT'd at each end to a 10.0.0.0/24 network. I can pass other types of traffic through the ASA 5505 but not RTP traffic. The moment it is NAT'd and hits the firewall rules it gets denied by the default deny at the bottom of the list.
Currently the rules are as follows
Incoming External
allow ip any any
allow tcp any any
allow udp any any
default deny
[code].....
It wont allow us to setup a voip call...however when the same call manager sets up a voip call NOT using this ipsec tunnel it works just fine.
Our office has 4 Cisco Aironet 1140 access points mounted on the ceiling. They are all powered via PoE. Every few days 3 of the 4 access points hang and have to be rebooted. When they hang I am not able to connect to their web interface to check the logs. The fourth, for some reason, always seems to stay alive.
I checked the configuration for all AP's and "Hot Standby" is disabled They are all using static IP addresses. I've tried 2 different banks of static IP addresses and 3 of 4 still hange so I don't think this is an IP conflict. I have saved the configurations and compared them and they are all identical, where possible.
They all have software version: 12.4(21a)JA1
They all have bootloader version: 12.4(23c)JA1
I have tried to download the latest software/firmware, but unfortunately I do not have a valid service contract in place with Cisco and therefore can't download the latest version. All of our CISCO hardware was purchased from Amazon resellers but no luck. I have also tried to contact Cisco and they can't seem to assist either. How I can get a valid service contract that information would also be very useful!!!
why 3 of our 4 access points would hang? When they hang, I can't login to the web interface and the logs seem to reset when I reset each access point. I have also set up an rsyslog server and I don't see a log entry that would indicate a problem.
