Is it possible for a Cisco ASA 5580 to create Syslog entries when someone connects via HTTPS or SSH to it. I need to obtain information from Syslog when someone does this.
View 5 RepliesWe use multiple ASA 5500/5580 cluster systems running 8.3 software versions.Actually we send all our FW syslog data to a SIEM appliance in a DMZ on a remote firewall (non-asa). Recently we suffered a strange incident while implementing a new SIEM collection station now situated in a dmz that is located on one of the ASA contexts. We redirected the syslog streams to the new client for one of the contexts on the ASA cluster that holds the new SIEM agent DMZ..since we did this and redirected the syslog we see double traffic and spoofing errors on that context
a/ the ASA keeps sending out the syslog traffic to the OLD SIEM agent server ip (there is however no trace of its ip in the config)
b/ the traffic leaving the interconnection interface towards the OLD SIEM agent gets a SPOOFING error on the traffic
c/ strangely the data gets also correctly forwarded to the new SIEM collection stations.
We started out with redirecting traffic on only one of the 5 contexts to the new environment and kept logging the others to the old system.I finally got out of the issue by reconfiguring al the other contexts to forward their syslog towards the same new server , since that moment we no longer have the double logging and spoofing error , all syslog traffic goes correctly to the new SIEM agent. It looked like some remenants of the old syslog config remainded on the asa event after deleting and introducing a new config line (we used the asdm to execute the action) as said either it kept the old config or it looked in the other context and "decided" to keep sending to the old server also mentioned in that syslog can find the behaviour in any buglists either way.
I have a VPN tunnel between two 892s. When either ISAKMP or IPSec SA lifetime expires tunnel stops processing traffic. However nothing is logged in the syslog. But when I enable debug crypto isakmp error and debug crypto ipsec error following entries appear:
ISAKMP:(0):Can't decrement IKE Call Admission Control stat outgoing_active since it's already 0
ISAKMP:(2041):R-U-THERE-ACK sequence number 0x63D809BB does not correspond to expected value 0x63D809BC
%CRYPTO-4-RECVD_PKT_INV_SPI: decaps: rec'd IPSEC packet has invalid spi for destaddr=XX.XX.XX.XX, prot=50, spi=0x3560099E(895486366), srcaddr=YY.YY.YY.YY, input interface=GigabitEthernet0
ISAKMP:(2043): IPSec policy invalidated proposal with error 4
Is this a bug? IOS is Cisco IOS Software, C890 Software (C890-UNIVERSALK9-M), Version 15.1(2)T2, RELEASE SOFTWARE (fc1)
Recently i have upgraded the IOS of ASA5550 (in HA mode) to 8.4.2 from 8.0.5, after OS upgrade we found that the syslog from thses firewalls are not getting captured/transfered to centralised syslog server. The server is reachable from the firewalls.
View 3 Replies View RelatedWe are going to impliment Spectrum (CA) in my network,i have ASA-5580-20 firewall now my spectrum server want to communicate with firewall,then only it will discover the firewall logs.Now the problem is my spectrum server is in MZ zone(10.10.10.45) security leval is 70 and my inside interface(10.20.20.101) security leval is 100.
I am unable to ping from spectrum server to firewall because of high security leval.How can i solve this problem,can i change my inside security leval to 69 then i think it will ping.
i check ASR 1006 config with ESP-40, the firewall permonce can reach 40G, ASA 5580 is 20G, can ASR 1006 replace ASA 5580, is there any function feature problem?
View 1 Replies View Relatedhow to read some of these log entries I see on the IOS 15.2 router I'm working with. I'm fairly new to this stuff. My understanding is that the first socket (123.123.123.123:port#) is the originating one, and the 2nd socket is the receiving or destination. This makes sense when I see an entry like:
01043: *Nov 21 2012 10:28:34.323 PCTime: %FW-6-DROP_PKT: Dropping tcp session xx.xx.241.163:39557 192.168.xx.xx:80 due to RST inside current window with ip ident 0
The internal IP is our email server inside the LAN, the first IP is some IP in a foreign country, so someobody visited our web interface for the email server, obviously trying to breach or recon the interface but whatever. Then I see an (unrelated) entry like this elsewhere in the logs:
001095: *Nov 21 2012 25:56:03.531 PCTime: %FW-6-DROP_PKT: Dropping tcp session xx.xx.178.210:25 192.168.xx.xx:47343 on zone-pair inside-outside class INSIDE-OUTSIDE due to Stray Segment with ip ident 0
What this latter entry tells me is that the Internet host sent data FROM port 25 to what I am guessing is the open port our internal email server must have originated some other communication from. However we do not accept incoming port 25 mail from anywhere but a designated IP so this "send" is not supposed ot occur. So first off, am I reading that correctly? Is the first IP the sending system, and the second IP the receiver? there are no other entries in the logs between these two hosts, so either the logs have truncated with oldest entries removed (log buffer is set to 51200), or that outside host is sending, hoping to get our mail server to respond? BTW, the outside host WHOIS's to Microsoft's IP range, Block 1.
accessing my cisco ASA, last night we were doing VA on our ASA, after that iam not able to access it through ssh nor telnet. its not giving me any error.. i tried from different system also. SSH & telnet allowed from inside to 0.0.0.0 i have re-generated rsa keys when it was working. ASA version is 8.2 now when i connect telent is giving me blank prompt. i can login using ASDM.
View 5 Replies View RelatedI got a problem with a cisco asa 5580 like two days ago and the device stop working (there was a mainteinance window and after that the device didn't work). Now we receive the RMA and we are trying to configure the failover so the new device get the configuration form the one that is working.
But this is the message that I gettin:
Failover message decryption failure. Please make sure both units have the same failover shared key and crypto license or system is not out of memory
We already changed the shared key and crypto license but the failover is still down, what are the features that the cisco need to activate to enable the failover?
I am receiving allot of Errors "%ASA-4-405001: received ARP collision from IP/MAC on interface dmz1 with existing ARP Entry IP/MAC
When i checked this MAC address in the same firewall it shows too many IP Addresses. What could be the reason ?
We are using Cisco ASA 5580 (8.2) firewall. When i try to ping from inside lan to firewall DMZ interface IP it is not pingable and but from inside users i am able to ping firewall inside interface IP address.
I think we can't ping to other interfaces of ASA by default. But can we allow the single IP address who can ping all the interfaces of firewall?
We are not doing any natting in firewall, for that we used the Load Balancer.
A customer's ASA is presenting the System LED flashing red.I have already analysed the show tech-support and show environment output: Found nothing, everythink seems OK.Cisco ASA 5580-20 - 8.2.1.Single appliance, no failover, multiple context and transparent mode.
View 5 Replies View Relatedwe are going to upgrade our 5580 ASA Cluster from 7.2 to 8.2 and want to do it like this way ( which worked for all 7.x upgrades ) :download asa8.2 Image to primary + secondary Firewallreboot primary ( message come up " mate version ...)reboot secondary.Does it works any experience? Does it work if both firewall can see each other during the boot process ?
Do I have to bring the secondary into the monitor mode so the fw is not visible for the primary ?
I want to ask that does ASA 5580 support the nat-pt for IPv6?
View 2 Replies View Relatedi'm new with the asa's...i'm familiar with the FWSM's on 6500's and pix..I'm running Version 8.3(2) and i wanted to setup nat-control and use of identify nats for advertising inside subnets to my outside networks.
the old command was static(inside,outside) 10.x.x.x 10.x.x.x netmask 255.255.255.x i'm having a little difficulty decyphering the pdf about the static nat...the command itself is no longer used, nat-control is no longer used, but i'm not quite sure what the equivalent nat command is that equates to the old static inside,outside command.
In my ASA 5580-20 system LED is flashing RED how can i trobleshoot this.
I checked rarepanel everything is ok also i saw environment also showing ok
I have encountered a problem in one of customer that the Active ASA 5580 is unable to sync with Standby Failover ASA. When Active is connected with FO and push the configs to it will not find the ethernet/Gig interfaces due to which the all the configuration were not applied and when the primary ASA the secondary is unable to respond.
When i attached console with the Standby ASA i have seen this error.
Number of interfaces on Active and Standby are not consistent.If the problem persists, you should disable and re-enable failover on the Standby.
For detail undestanding i am attaching the configs of primary and standby ASA. The KHI-DR-ASA-BB-01 is the standyby firewall.
If we switch from primary to secondary firewall the interfaces on the secondary go to state waitung than to failed. after awhile the secondary gives the control to the primary.
it seem that traffic passes the secondary firewall during this short failover time . we have several context created on the firewall, Switch Ports checked , cabeling check everythink checked
blackhole Interface inside (10.255.102.134): Normal (Waiting)
blackhole Interface shared (10.255.102.134): Normal (Waiting)
blackhole Interface inside (10.255.102.133): Failed (Waiting)
blackhole Interface shared (10.255.102.133): Normal
blackhole Interface inside (10.255.102.133): Normal (Waiting)
blackhole Interface shared (10.255.102.133): Normal
We got a replacement ASA 5580 from Cisco. We were not aware of PAK, Is there any other possible to generate Activation key? Can we generate PAK or Activation Key using SO (service order) number?
View 1 Replies View RelatedI have a problem with failover. On My site I have 2 Firewalls 5580. And I did this configuration on my firewall.interface GigabitEthernet3/0description LAN/STATE Failover Interfacespeed nonegotiate.
View 5 Replies View RelatedI have two firewalls in 2 different locations. They act as primary and secondary for my WAN connectivity. I would want a way to synchronize access-lists in both without manually replicating.(access list, NAT and Route)FW model cisco 5580
View 1 Replies View RelatedWe have a Cisco ASA 5580 and the outside interface has a public IP address and we noticed we can ping this address from the Internet. I did a packet capture on the outside interface and confirmed the pings and the IP address sending the pings. The 5580 does not have an access list allowing icmp so I'm not sure what is allowing the pings to this interface.
View 5 Replies View RelatedI can not seem to view my "permit" entries in the log on my ASA 5520. I set up logging-lists, changed the level to 3 on the logging statement, and simply can't find it anywhere.
Partial config:
logging enabled
logging timestamp
logging JC-L3 level errors
logging monitor JC-L3
logging buffered JC-L3
logging trap notifications
[code]....
The firewall is running version #8.2 on ASA 5580. Address translation is not needed on Inside network and Outside network.But the customer has hundreds of static command as below.. [code] Can they all be removed and replace with one single command as below?
View 1 Replies View RelatedWe are going to setup a L2L VPN with a vendor and they asked us to NAT a couple IP addresses for remote access to a couple of servers on our inside network. Our device is an ASA 5580 with version 8.1 and we have a handfull of public IP addresses for use if needed. The vendor's remote network is a public IP address but for this posting I will use 192.168.10.0. Our inside servers are 10.100.10.20 and 10.100.10.30. Because 10.100.10 is in use with another customer they asked us to NAT 10.77.97.20 and 10.77.97.30 to the two inside servers.
View 2 Replies View RelatedDoes ASA supports NAT in bridge mode? especially the 5580 series x??
View 1 Replies View RelatedI have got new cisco ASA 5580 running 7.2(4) on it when i am trying to configured Virtual interface on vlan 400 in Gi0/0.400 to LBASE.now the problem is from my MZ zone 10.242.107.17 to Lbase virtual interface 10.242.103.1 iam not able to ping.
View 2 Replies View RelatedThis is the situation I got to firewalls with failover and I need to upgrade the license so I can get more context (right now I have 5 context and I need 10) so I was looking at the procedure and I'm not sure If I need to restart the device or not. I was looking at this procedure:
Upgrading the License for a Failover using ASDM (No Reload Required) Use the following procedure using ASDM if your new license does not require you to reload. This procedure ensures that there is no downtime.
•1. On the active unit, choose Configuration > Device Management > High Availability > Failover > Setup, and uncheck the Enable Failover check box. Now click Apply. The standby unit remains in a pseudo-standby state. Deactivating failover on the active unit prevents the standby unit from attempting to become active during the period when the licenses do not match. •
2. Choose Configuration > Device Management > Licensing > Activation Key, and enter the new activation key that you obtained with the active unit serial number. Now click Update Activation Key.•
3. Log into the standby unit by double-clicking its address in the Device List. If the device is not in the Device List, click Add to add the device. You might be prompted for credentials to log in.
4. Choose Configuration > Device Management > Licensing > Activation Key, and enter the new activation key that you obtained with the standby unit serial number. Now click Update Activation Key.
5. Log into the active unit again by double-clicking its address in the Device List. Choose Configuration > Device Management > High Availability > Failover > Setup, and re-check the Enable Failover check box.
6. Click Apply. This completes the procedure.link: [URL]
But then I checked on the cisco web page that there are some license that need to reload I see this:
All models
#Downgrading any license (for example, going from 10 contexts to 2 contexts).#Note If a temporary license expires, and the permanent license is a downgrade, then you do not need to immediately reload the security appliance; the next time you reload, the permanent license is restored.
[URL]
So I just want to know if I'm UPGRADING from 5 to 10 context the reload applies to my situation or not?
I have a asa5580 with multiple interfaces. To replicate me databases to another site, I mainly use two interfaces on that firewall. Those interfaces have a steady pace, around 95%.
I am wondering when I should consider that the thoughput between those two interfaces is too much? Is there a good document that could explain me clearly why?
Also I want to be sure that I won't affect the normal traffic between the other interfaces. Is there a way to garantee certain traffic over others on an ASA? I don't have any router in me setup layer 3 role is perform by asa firewalls (static routes).
Preparing to upgrade the IOS on a failover pair of ASA 5580's and was wandering what is gonna happen after I've upgraded the IOS on the standby unit and rebooted. How is the active unit going to react when it sees an IOS mismatch prior to me making the standby the primary and upgrading it's IOS ?
View 2 Replies View Relatedhow many route entries can ASA5520 (8.2.1-k8) support?
View 2 Replies View Relatedwe are observing the no. of conn thru asa 5580 is getting increased and one a fine day it will stop sending/receiving traffics.firewall# show conn count 1900000 in use, 2000008 most used As per the datasheet of this asa, the max conns permissible is 2 million (20 lacs). and the output shows that currently 1900000 connections are there and 2million+8 connections are most used.when i run " show local-host | include host|count/limit ", below are the outputs showing for max connections..
local host: <172.x.x.x>,
TCP flow count/limit = 35857/unlimited
TCP embryonic count to host = 25
UDP flow count/limit = 0/unlimited
local host: <DC01>, TCP flow count/limit = 306/unlimited TCP embryonic count to host = 8 UDP flow count/limit = 736807/unlimited
local host: <DC02>, TCP flow count/limit = 246/unlimited TCP embryonic count to host = 2 UDP flow count/limit = 582010/unlimited
local host: <172.y.y.y>, TCP flow count/limit = 1/unlimited TCP embryonic count to host = 0 UDP flow count/limit = 308412/unlimited
These are the top 4 connections, i wonder should we consider only the tcp flow count or udp as well ?
Our proxy/anti-smap/IPS box called PROXY is behind our Cisco ASA firewall. The PROXY is set in transparent mode.The PROXY internal ip is 1.1.1.1 (internal ip)We have the MX record for mail.domain.com with public ip 9.2.7.5 (public ip as we entered with ISP public DNS)What happens now is that the emails that come through get "caught" by the PROXY and then we setup a thing whereby the emails are then forwarded from PROXY to our mail.domain.com server. Also, we made a static entry in PROXY whereby we can https to our email server for the outlook web access from outside of work therefore allowing for users to see the outlook web access web page.On the Cisco firewall, we put the static entry that 9.2.7.5 is mapped to 1.1.1.1 thus the mail server public ip is mapped to the PROXY.
Now, the box has this thing whereby it sends an email to all staff once a day telling them how many mails are legit, how many rejected and how many are spam - the spam emails are listed within the email and staff can at a click of a release button next to each spam email release a particular email from the PROXY box and make it to into their inbox. This works fine from the inside network, but I have issues from the outside due to the DNS and other things.I also put in the PROXY that any network can release spam and that our staff vlan can release emails. Also, on the inside of the firewall we did an access list that computers from staff vlan can access 1.1.1.1 on port 6552 (Which is the release spam port).Hence, we can release emails from internal network through the Microsoft Outlook.
On the outside network, we cannot release emails when using outlook web access.The host name for the PROXY release spam is proxy.domain.com so what we did also today is ask "ISP" to make an A record entry for another public ip which is 9.2.7.6 for proxy.domain.com.We meanwhile made an entry on the access list that comptuers from outside can access 9.2.7.6 on port 6552 (which is the release port).Now the only question is in regards to the static entries:
1. do we (and can we?) static map 9.2.7.6 to 1.1.1.1 through a port 3840 on the Cisco ASA (although we have already mapped 1.1.1.1 to 9.2.7.5 - I have a doubt here as this might mean we might not get emails? Or would we have to do the static again for this one specifcying the 9.2.7.5 as an smtp entry and the 9.2.7.6 as a release button?
2. have I made a mistake in general and should I have just told the ISP to make a CNAME entry for proxy.domain.com with the public ip 9.2.7.5 (which is the public ip for MX record?)?