Cisco Security :: ASA5540 - Syslog Logging Everything
Jun 17, 2011I am trying to log every connection (Build, deny, etc).But for some reason I don't see them sh log.
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I am trying to log every connection (Build, deny, etc).But for some reason I don't see them sh log.
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It appears that there are two different types of log information generated by the WLC-5508. The stuff that can be sent directly to syslog seems to be very basic while most of the good log information is sent via snmp trap. Does this setup to log to a SIEM in a manner that gives a good security view into the wireless controller?
View 4 Replies View RelatedHow to set up logging of commands on syslog server ? (cisco nexus 7010)
View 2 Replies View RelatedI found a new bug in cisco IOS 15.1(4)M3 when running EEM script with syslog event detector.If system logging performed using the "logging discriminator" and run concurrently EEM script with syslog event detector, then Cisco router crash and goes to reboot.
Cisco ISR G2 3925E.
I am sending TACACS administration logging to a syslog server. When the messages show up on the syslog server, they are 5 hours ahead of the actual time. Time on the ACS is correct - local logging shows the correct time. Time on the syslog server is correct...all other devices/systems sending syslog messages to it are coming through with the correct time. why the ACS syslog messages would be 5 hours ahead?
View 3 Replies View RelatedWe have a firewall service environment where logging is handled with UDP at the moment. Recently we have noticed that some messages get lost on the way to the server (Since the server doesn't seem to be under huge stress from syslog traffic). We decided to try sending the syslog via TCP. You can imagine my surprise when I enabled the "logging host <interface name> <server ip> tcp/1470" on an ASA Security context and find out that all the connections through that firewall are now being blocked. Granted, I could have checked the command reference for this specific command but I never even thought of the possibility of a logging command being able to stop all traffic on a firewall.
The TCP syslog connection failing was caused by a mismatched TCP port on the server which got corrected quickly. Even though I could now view log messages from the firewall in question in real time, the only message logged was the blocking of new connections with the following syslog message: "%ASA-3-201008: Disallowing new connections."
Here start my questions:
- New connections are supposed to be blocked when the the TCP Syslog server are not reachable. How is it possible that I am seeing the TCP syslog sent to the server and the ASA Security Context is still blocking the traffic?
- I configured the "logging permit-host down" after I found the command and it supposedly should prevent the above problem/situation from happening. Yet after issuing this command on the Security Context in question, connections were still being blocked with the same syslog message. Why is this?
- Eventually I changed the logging back to UDP. This yet again caused no change to the situation. All the customer connections were still being blocked. Why is this?
- After all the above I removed all possible logging configurations from the Security Context. This had absolutely no effect on the situation either.
- As a last measure I changed to the system context of the ASA and totally removed the syslog interface from the Security Context. This also had absolutely no effect on the situation.
At the end I was forced to save the configuration on the ASAs Flash -memory, remove the Security Context, create the SC again, attach the interfaces again and load the configuration from the flash into the Security Context. This in the end corrected the problem. Seems to me this is some sort of bug since the syslog server was receiving the syslog messages from the SC but the ASA was still blocking all new connections. Even the command "logging permit-host down" command didn't wor or changing back to UDP.
It seems the Security Context in question just simply got stuck and continued blocking all connections even though in the end it didn't have ANY logging configurations on. Seems to me that this is quite a risky configuration if you are possibly facing cutting all traffic for hundreds of customers when the syslog connection is lost or the above situation happens and isn't corrected by any of the above measures we took (like the command "logging permit-host down" which is supposed to avoid this situation altogether).
logging buffered 4096 warnings The above causes router to log all the events with severity level 4 or below in buffer.What about logging console warnings command?will the above command cause router to send log messages with severity level 4( warnings severity level) to console only or will the router send all the log messages with severity level 4 or below to console ?
View 3 Replies View RelatedI'm looking to configure a syslog server for all of my cisco device logging. I've had a look at CNA and can't find any options to define a syslog server for my switches.
What's the best way to define a syslog server and the severity of the notifications? Also, i'm looking to clear all previous Syste mmessages fon my devices?
I'm trying to view the logs from a Cisco 857W router to a workstation running the Kiwi Syslog server. what I've done is the following:
Config term
Logging on
Logging source-interface BVI1
Logging Facility Local7 (or any other facility you want to allocate for this router.)
Logging [IP Address or Hostname of machine running Kiwi Syslog Server]
End
I see noting on the syslog server. Although I can see the log information on the router Also is there a command to stop the logging from generating or is this on by default.
One of my client want to upgrade its already installed ASA5540-bun-k9 by adding CSC-20 Module. As per below link CSC-20 is supported with ASA5540. but for any reason the ASA5540 bundle option with CSC Module is not available that create confusion.Will CSC-20 Module work with ASA5540-bun-k9 [URL]
View 2 Replies View RelatedI have requirement received from one of my customer. the part number given as ASA5540-AIP40-K8, same time requesting for addition of another 4Port GE Module (i believe its SSM-4GE Module). Is any option to add this module in to the above specified model (ASA5540-AIP40-K8).
As per my understanding the ASA5540 have the option to add 1 additional module only, so if we AIP-SSM module, we don't have any free slot left with to add another SSM-4GE Module in the firewall.
i am not getting even the option to add SSM-4GE in the ASA5540-AIP40-K8
Why packets overrun are incrementing on the ASA even when I've only 40Mbps of throughput traffic?All interface are 1000- Full Duplex, both on ASA and on Catalyst3750.I've test the ASA5540 generating GET HTTP, about 40Mbit of traffic.When I use one ingress interface and one egress interface, interface input overrun counter is zero.When I use the same traffic with 3 ingress interfaces(slot0) and 3 egress interfaces(slot1), interface input overrun counter increase(60k overrun in only 2 minutes).
View 4 Replies View RelatedUsing AnyConnect Secure Mobility Client, logging into ASA5540. After I put my credentials in, I get the banner message (from group policies). After I accept that, I get another pop message stating:It looks like a pre-set message. Where can I disable and/or edit this message?
View 4 Replies View RelatedWe have a PIX 515E running ver 6.3 and we want to implemente some sort of logging to keep track of who/when logs in to the PIX and if they make any config changes or to the file system. All of this is for forensic purposes in the future. I have already looked at some PIX docs but I don´t seem to find what I am lokking for.
View 1 Replies View Relatedi'm about to configure a syslog server to receive syslog messages from a Cisco ASA5510 and being it a one week test I was wondering how much space should I allocate on the machine hosting the tool (kiwi syslog). I see that the ASA fills the internal syslog buffer to 4MB and then it overrides it. How many messages would those 4MB be?
View 2 Replies View RelatedAdd the ability to send syslog events to multiple syslog servers in the SA500 Series routers. I know the functionality is currently in the RV220W because we utilized it. It would be great if you could configure the syslog servers by event type as well. For example, being able to send the kernel events to syslog server A, and all other events to syslog server B.
View 0 Replies View RelatedRecently 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 RelatedI'm encountering what I think is an issue on logging system on FW ASA 5520 - Asa Version 8.4(2), ASDM version 6.4(5). When I disabled the logging inside a rule from ASDM, or from console with the "log disable" option inside ACL, If I check in ASDM logging real time window I continue to see all the entry related to disabled rules. This is a correct behaviour about ASA logging ? How I can "hide" the entry related to disabled rules (this is what I need for troubleshooting purposes) ?
View 1 Replies View RelatedI have ASA5540 with 1000 SSL-VPN License, then I would like upgrade from 1000 to 2000. Which part I have to add between
L-ASA-SSL-1000=
L-ASA-SSL-1K-2500=
ASA5500-SSL-1000=
I meet a strange question about IPSec VPN between '' C3945 A---ASA5540 A----------Internet----------ASA5540 B---C3945 B "
I set ipsec vpn between ASA5540,and set Tunnel between C3945.the C3945 Configuration as follow:
C3945 A C3945 B
interface Tunnel10 interface Tunnel10
ip address 172.18.1.225 255.255.255.252 ip address 172.18.1.226 255.255.255.252
tunnel source 172.17.0.1 tunnel source 172.17.1.121
tunnel destination 172.17.1.121 tunnel destination 172.17.0.1
the strange issue is like that:
On C3945A : I can ping 172.17.1.121 with the source address 172.17.0.1,but can't ping 172.18.1.226
On C3945B : I can ping 172.17.0.1 with the source address 172.17.1.121,but can't ping 172.18.1.225
I have an ASA5540 running 8.4(3) which has CA and identity certificates from godaddy.com installed, identifying the ASA to VPN remote users (the are using the anyconnect client.) There is also a separate certificate server located on the inside LAN that is used for internal purposes. All client workstations have identity certs from this internal server.
We would like to be able to continue using the existing godaddy CA/identity certs to identify the ASA to the clients, but we'd like to use the internal CA server to identify the clients when they initiate the AnyConnect session to the ASA.
I have seen other postings that state you cannot have more than one vert on an interface, but this is a little different - only one cert needs to be used to identify the ASA. The other one is only to identify the users. The ASA did allow me to import the internal CA cert.
I need to enable VPN-3DES-AES on an ASA5540. Show version provided this info below.
Licensed features for this platform:
Maximum Physical Interfaces : Unlimited
Maximum VLANs : 200
Inside Hosts : Unlimited
Failover : Active/Active
VPN-DES : Enabled
VPN-3DES-AES : Disabled
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This platform has an ASA 5540 VPN Premium license.After doing some poking around I came across a link to request a free license but when the email came it warned that the requested license was lower than one currently assigned to the serial number provided. I do not have any of the old license information since this was set up years ago and was way before my time with the company. How to enable the feature as well as maintaining my vpn premium license features.
I had a working vpn configuration between a local and a remote router; the remote router is not under my administration.Now I moved the vpn termination from my side to an ASA5540 software version 8.0(3). The tunnel is up but there is no reachability. The "show crypto ipsec sa" on the ASA shows encapsulated packets but NO decapsulated packets! Routing and no_nat are properly configured.
View 28 Replies View RelatedWe have a ASA5540 and we would like to shutdown the VPN service. To do so, we would like to warn people by sending a message prompt when they logged in using Anyconnect. Message are only working on DA that terminate but not on those who Continue. I have also tried the Checkandmsg fonction but it behave the same way.
View 2 Replies View RelatedI have an ASA- 5585X (v.8.2.4) directly connected to an upstream 6509, which is running EIGRP. I configured the ASA for EIGRP with same AS# and network numbers and no auto-summary. Here are the log messages I got:
Mar 8 15:11:08: %PIM-5-NBRCHG: neighbor 164.72.178.28 UP on interface Vlan150 (vrf default) Mar 8 15:11:08: %PIM-5-DRCHG: DR change from neighbor 0.0.0.0 to 164.72.178.28 on interface Vlan150 (vrf default)
Mar 8 15:11:11: %DUAL-5-NBRCHANGE: IP-EIGRP(0) 1: Neighbor 164.72.178.28 (Vlan150) isup: new adjacencyMar 8 16:16:08: %DUAL-5-NBRCHANGE: IP-EIGRP(0) 1: Neighbor 164.72.178.25 (Vlan150) isup: new adjacency
Mar 8 16:18:54: %DUAL-5-NBRCHANGE: IP-EIGRP(0) 1: Neighbor 164.72.178.25 (Vlan150) is down: K-value mismatch
I lost my SSH connection to the upstream 6509 and couldn't get it back. Luckily I didn't lose my ASDM connection to the ASA, so I disabled EIGRP and went to look at the logs on the 6509.
What causes a K-value mismatch, and how to I rectify the situation?
I have this 2x ASA5540 firewall and notice the it is configured with a standby ip. The firewall is run in Active/Passive mode.However, the standby ip of this firewall is not point to the secondary firewall and vice versa for the primary firewall. [code]
1) May i know how is this configuration valid in the first place? I have checked through the configuration. None of the configuration is related to this ip address.
2) Can we remove this standby ip address on both the firewall and correct to the correct primary and seconadary ip address in both firewall?
3) We tried to use this ip address but cannot be used ? Is it related to the configuration of the standby ip address.Do note that the ping to this ip address x.x.x.120 is unreachable.
How many VPN connections the ASA5540 can provide at the same time?
View 2 Replies View RelatedIn my environment, VPN users are connecting to corparate network via ASA 5540 and using 3.5.1, 4.8, 5.0 (32 bit) and 5.0(64 bit) VPN clients.After they have built VPN connection, they use program that generates traffic to a bradcast address (x.x.x.255) inside corparate network.
There is no problem with users who are using 3.5.1 and 5.0(64 bit), but 4.8 and 5.0 (32 bit) vpn clients can not add ARP entry to Windows machines ARP table. If i add ARP entry for x.x.x.255 on VPN interface, they can work.
Are there any configuration documents that shows how to configure a Cisco ASA5540 for client VPN access using smartcards and Microsoft IAS. Microsoft IAS will stand between the ASA5540 and Active Directory.
View 1 Replies View RelatedWe have an ASA 5540 successfully using SSL VPN Client Tunnels with no issues, and have been attempting to build the ability for IPSec Clients to connect as well. I have the authentication working, yet cannot complete the establishment of the tunnel for the client. The client receives an error of "Secure VPn Connection terminated by Peer, Reason 433: (Reason not specified by Peer)". In the log on the client, I see the following when the connection drops:
(this is after successful connection, split tunnel setups, then this set of items appears in the log)
377 09:29:08.071 02/28/13 Sev=Info/4 IKE/0x63000014
RECEIVING <<< ISAKMP OAK INFO *(HASH, NOTIFY:STATUS_RESP_LIFETIME) from <outside IP of ASA>
378 09:29:08.071 02/28/13 Sev=Info/5 IKE/0x63000045
RESPONDER-LIFETIME notify has value of 86400 seconds
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I see the message where it terminates and where is says 'Account Start Failure' but I can't figure out what that is indicating..
I have running more the 30 VPN tunnels on my ASA5540 release 8.3(x).I want to disable one VPN tunnel(temporarily) without removing the configuration either Phase 1 or Phase 2.let me to know the command to disable IPSec VPN tunnel on CLI or ASDM.
View 1 Replies View Relatedi currently have a ASA5540 with 250 SSL VPN Premium licenses and looking to purchase another 500 licenes on top of what i already have.I have been told that i cant simply add 500 licenses onto the 250 to make 750 in total and that i need to purchase a 250-500 licenses or 250-1K licenses. Is this correct? I ask this because on the cisco website, that there is L-ASA-SSL-250-500= & L-ASA-SSL-500-750= part numbers?
View 1 Replies View Relatedi have two CAT3750 need to place in L3, and it supposed that used as L3 switches by SVI for L2 routing, and I want to these two configured as redundancy by HSRP. but now I can only have one ASA5540 to connects these of L3 switches.
so, here is my questions:
1. does ASA5540 support multi vlan?
2. does it support spanning tree protocol?
3. if I've choiced to use trunking between two L3 switches, does it can pass through HSRP hello msg?
4. achive network redundancy