Cisco Firewall :: ASA 5505 - Connection Timeouts / Connection Failures
Dec 18, 2011
We're getting "Connaction Timeout / Connection Failure" error messages several time per day. Here is our setup:
Verizon FiOS Internet (ONT Box) --> Cisco ASA 5505 --> EdgeMarc 4500 Router --> Cisco 300-24G Switch --> Dell PE1950 Servers
From past few months, we keep getting Connection Timeout and Connection Failure error messages in our vendor application which connects to SQL Server 2005. Also Terminal Server 2003 keep disconnecting for every few hours.After several days of troubleshooting, we come to know that this Cisco ASA 5500 is not working properly. When I access the ASDM, it shows several warning messages.I know there is a setting option to configure TimeOut, but is there anyway to test and track the ASA 5500 regarding this Timeout issues?
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Feb 15, 2011
We recently got a 10 meg dedicated internet fiber connection installed. I connected it to a PIX 501 firewall and everything worked fine (I tested it for a couple of weeks). A couple of days ago I got a new ASA 5505 and replaced the PIX with this device. It works, but every so often there seems to be a timeout when surfing the web whereby I click on a link and there is up to a 45 second wait and then the page loads quickly. I was not getting this before on the PIX so I'm assuming it's not a latency issue with the connection. I am the only one using this connection on the network so it's not to say that it's being bogged down. I want to roll this out to the other users on the network but not when this is happening. The configuration is below:
: Saved
:
ASA Version 8.2(1)
!
hostname ciscoasa
[Code].....
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Aug 28, 2012
I got a Problem on a customer which is using a Failover ASA 5510 pair with SSM-CSC-10-K9 modules.The clients have to connect to a webserver where they are doing some calculations.If they prepare everything and want to calculate everything what takes a couple of time the session is after about 3 minutes timedout.My first idea was to set session specific timeouts which are a bit longer then the normal but this setting did not work. I created a policy which did not work for me. How to set connection specific timeout's? [code]
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Mar 1, 2012
I am tyring to remotely diagnose a troublesome ASA5505
It is connecting via PPPOE and the original suscpicion was that the PPPOE was going down during heavy loads during the day, i.e 9am and lunchtime. I suspected MTU and have verified the MTU outside is set to 1492
However further troubleshooting doing a remote ping to the PPPOE address indicates that this does not drop at all.
When remoteley connected to the ASA my session dies and any outbound internet fails, then in a few minutes it comes back.
all the time the PPPOE line stays up?
One thought is that although the line does not go down it is being crippled with traffic and just getting so unresponsive it appears it has died.
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Jan 4, 2012
Im running 8.3 on a 5505. We've got a few ssh tunnels originating from inside to some place on the internet. It seems these tunnels are closed every n minutes. I've seen two recommendations for altering the timeout values, and what I am interested in is infinite timeout (0) for these SSH tunnels.
Suggestion 1, alter timeout "conn". Default is 30 minutes, but I suspect this might have a negative impact because no inactive connections would be closed, ever. If it however is recommended to alter, how to set it to "0" (off/unlimited)? timeout conn 1:00:00 half-closed 0:10:00 udp 0:02:00 icmp 0:00:02
Suggestion 2, enable a ssh class map which explicitely set the timeout for the ssh connection. Is this recommended? How would I achieve unlimited time? And what about random-sequence-number disabled as seen below, is that really recommended?
class CLASS_MAP_SSH
set connection random-sequence-number disable
set connection timeout idle 48:00:00 reset
set connection decrement-ttl
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Aug 26, 2012
I have the latest version firmware
I am constantly getting dropped and timeouts accross all of my devices this has been hapening for several months now I think ever since I upgraded to 1.0.04
It says no internet access when the wired computers have it fine. Android phones, windows 7 pc, and chromebook.
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Oct 9, 2011
So I recently purchased an E4200 to replace my aging and slightly ailing DLink DIR-655 which as served me well for going on 5 years. The part of the DLink that was giving me the issues was the wireless, the routing and switching worked fine however.
I do quite a lot of streaming of media from my home machine outside my network through the internet. Most recently I've been using Kalemsoft Media Streamer on my HP Touchpad, however I've used Zumocast, Windows Live, Splashtop, and a few others. I havent yet tried my PPTP VPN through the router for an extended period of time to see if it reflects this issue as well though.
Since replacing my 655 with the E4200 I've started experiencing a timeout issue. It seems to be semi-consistant and only happens after time of unuse or extended use (I havent timed it yet to see if it always happens after the same amount of time though).
Basically what occurs is this:
I'll be watching some video or listening to audio streaming from my machine and after a period of time (usually a long period of time) it'll suddenly lose connection, requiring me to re-connect through the software, like the NAT translation is timing out or something.
How it USED to work is this: It'd basically work until I stopped streaming.
My setup:
AT&T Uverse set to DMZPlus aiming towards my E4200 WAN port (sitting directly in place of the 655 I used to have)
All machines on the network are gigabit. I have ports 7000 and 7001 open for Kalemsoft Media Streamer on the E4200 per the specifications of the software.
The software understands UPnP so I have nothing specific forwarded on my machine, but I didnt previously either.
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Mar 7, 2012
I have seen this at two sites now: after migrating the site T1 to 10-Mbps Opt-E-MAN and replacing old 10/100 switches with 10/100/1000 switches, users frequently get http connection errors. The error goes away if the user reloads the page--sometimes they have to reload more than once. They never had this problem before.I thought it was due to the large number of 5-port desktop switches infesting the networks (I'm getting rid of them as fast as I can) but it happens even on a PC directly connected to one of the new GigE switches. It does not happen when accessing internal web pages. It looks like a DNS failure -- but nothing has changed in our DNS setup, except that users have a fatter pipe to our DNS servers.
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May 6, 2013
Installed Cisco AnyConnect Secure Mobile Client on a new Asus CM6870, downgraded to Windows 7 Pro. It worked fine for 3 days, establishing VPN connections with my workplace without a probllem. Then it repeatedly failed to connect.
I attempted an uninstall/re-install, and the install now fails as well, returning the following error: The VPN client agent was unable to create the interprocess communication depot. When I do manage to get it re-installled, it works sometimes, then fails to establish connections other times. I am not an IT professional, so trying to diagnose the issue by reviewing the Windows/Inf/setupapi.app.log and .dev files is a no go. I do not hold a contract with Cisco so I am not authorized to open a support ticket, or receive phone support (again, I tired).
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Jan 29, 2011
I leave on one of my computers on all the time, an Acer desktop with Windows XP. I also have two laptops. I have Verizon DSL and a linksy wireless G router. When we have a power outage the Acer desk top loses it's internet connection. Trying to reconnect the connection takes hours. Even when we finally get it back we have no idea how we did it. The laptops which of course were off have no problem.
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Feb 13, 2012
I have the asa 5505 with asdm 6.4(5). my inside LAN is 192.168.0.0/24. the outside of asa is connected on lan 10.13.74.0/24 and i need over LAN 10.13.74.0/24 connect on LAN 10.15.100.0/24. i put nat rule on asa 5505 and acl rule and users from lan 10.15.100.0/24 can connect on my server, but i can't connect on from inside of asa connect on lan 10.15.100.0/24 and 10.13.74.0/24. my configuration asa is Result of the command:
"show running-config"
: Saved
:
ASA Version 8.4(2)
!
host name Cisco asa
enable password 8Ry2YjIyt7RRXU24 encrypted
password 2KFQnbNIdI.2KYOU encrypted
names
[ code]....
what i do that connect on LAN 10.15.100.0/24. i cant ping my outside interface, put rules on acl, i enabled service policy rule for icmp ,but nothing.
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May 21, 2012
I've got an aol engineer visiting Thurs.to examine connection loss (since last Weds). But I'm convinced the problem is with the router. But from the tone of the aol tech questions I suspect he's already briefed his engineer to do his best to represent the problem as being either with my computer or positioning of router/filters/condition of wall-sockets - usual getouts.The talktalk router is neww, issued Feb 12, after my original router, speedtouch, started suffering idle timeouts every day.
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Apr 15, 2013
I have a SIP trunk in my Florida office connected to a Cisco 2851 ISR. I'm using Unified Communications Manager 8.0 and life is great.
We just opened a new office in Spain and now the fun begins. We created a site-to-site VPN tunnel using ASA 5510 in Florida and ASA 5505 in Spain. We can register IP Commuicator phones in Spain but when they make calls it shows up as a Florida call. We need it to show up as a Spain call.
We are thinking to get a SIP trunk into the Spain office but I only have a ASA 5505 over there. Can I terminate a SIP connection to it? Is this the best option? If not, what is the recommened setup?
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Nov 13, 2012
I am having a problem with a ASA 5505. The users on the inside cannot access internet for the most of the time. When i looked over the configuration and tried a few changes i got out to internet about 5 seconds every 30 minute or so. Very strange. When i try to access internet i just get the windows post that DNS is not working properly. As you can see in my config i get all addresses dynamic from ISP.
I am not sure what to do next, i tried to set static routes, make Nat changes, static dns addresses, searching this forum but nothing works. It seems like there is a ISP problem but i have talked to the support twice today and they say that all is fine from their side. Does ASA behave like this?
ASA Version 8.2(2)
hostname ciscoasa
domain-name
enable password encrypted
passwd encrypted
names
[code]...
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Jun 23, 2012
I have a Cisco ASA 5505 - 50 VPN edition. I have baffling network issues that I have not been able to pinpoint and I recently started to think it may have something to do with my ASA. I'm a network administrator and I have a Cisco ASA 5505 in my home network so I can learn how to manage Cisco ASA's and utilize the Easy VPN feature so I have a always on VPN connection into work to log into servers, etc. I've been using the ASA for almost 6 months with the EasyVPN feature with no issues. My ISP is Comcast.
Within the last week my connections have been randomly dropping for about 20 seconds and then reconnecting. I have two computers on the network that have a direct ethernet run to the switch ports on the back of the ASA. When the connection drops, I see my LAN icons completely lose connectively (yellow exclamation warning) then after 20 seconds, reconnect. This is very random. I was able to get it to happen every time I connected to XBOX live and play a online game. It would almost on cue drop after 30 minutes of online gamming. Here are the steps I have taken:
1. Replaced 10/100 switch to a brand new 10/100/1000 switch from computer run in my office to the ASA.
no joy
2. I upgraded the ASA to the most recent firmware: ASA Version 8.4, ASDM Version 6.4
no joy
3. I had an ethernet run under my carpet to the office, I started to think that maybe one of the cables had an issue after walking on it and vacumming causing a short. I removed all the ethernet under the carpet and installed power line over ethernet adapter from the ASA to my office.
no joy
4. I checked both computers on the network for viruses. All computers came back clean after scanning wth Malwarebytes and SuperAntispyware.
5. I've watched the logs on the ASA as the LAN connection drops and I don't see error messages to troubleshoot this issue.
The only thing left to replace is the Comcast modem or the Cisco ASA. The Comcast modem is newer and only about 1 year old (rented from Comcast). Since my actual LAN connection drops and I lose connectively I believe there may be some issue with the ASA or the ASA switch ports or some sort of internal hardware issue on the ASA.
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Jun 24, 2012
I'm trying to get an asa5505 set up so that our web server can send an LDAPS login to a client's server and receive the request back. The default IP our traffic goes out on is different than where I want the connection to come back in on. So, I set a NAT rule to send all traffic from a specific inside IP out a default outside IP. I also allowed LDAPS traffic from the client's server IP address in and have nat'd it back to the appropriate inside IP address. It seems to build the outbound connection fine, but then seems to drop it right away, which then seems to not allow the response back in. I've attached a picture of the log, with (what I think are) the lines in question highlighted. I'm far from a routing expert, but this seemed like a fairly easy setup.
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Jun 3, 2013
I am mapping static ip address to the local ip address.We have a bsnl broadband connection, and bsnl has provided us with one static ip address.We are using broadband modem.Now I would liket to map this static ip address to one of the private ip address which is 192.168.1.2(database server).i want to do nat above ips if i do so then i dont have no ip to assign to my outside interface.I would like to access this device over internet, by typing my public (Static ip ) given by the BSNL.security device i have is cisco ASA 5505.
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May 23, 2012
I have a simple network with an ASA5505 mainly used for AnyConnect so there is little traffic. There is 1 laptop connected to the E0/1 of the ASA and then E0/0 is going to the internet port. I've noticed about ever 15-20 minutes, I lose all connection. The laptop can no longer browse the web and handsets can no longer VPN into the network. I've noticed a few seconds after performing a clear arp, all the connectinos are restored. The laptop can browse the web and handsets can VPN in again.
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Feb 27, 2011
I have asa 5505 with security plus license, I configured dual ISP with two different ISP provider. I followed below cisco document to configure dual ISP [URL] The Configuration works during the testing, while removing the primary ISP cable from firewall. The problem i am facing is my primary ISP is down but the gateway is still up and it not switch over to backup ISP. For SLA which IP should i monitor so once my primary ISP is down it will fallback to Secondary.
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Oct 6, 2011
I configured an ASA 5505 a couple of weeks ago. Every thing is working properly except it sends irritating messages to the syslog server. Her is an example of the message:
%ASA-2-106001: Inbound TCP connection denied from 195.215.221.56/80 to 10.70.13.90/252 flags PSH ACK on interface outside
%ASA-2-106001: Inbound TCP connection denied from 195.215.221.56/80 to 10.70.13.90/2252 flags ACK on interface outside.
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Feb 27, 2011
I changed a configuration and suddenly I lost the internet connectivity... Result of the command: "show running-config"
: Saved:ASA Version 8.2(1) !hostname ciscoasaenable password qVQaNBP31RadYDLM encryptedpasswd 2KFQnbNIdI.2KYOU encryptednames!interface Vlan1 nameif inside security-level 100 ip address 192.168.1.1 255.255.255.0 !interface Vlan2 nameif ATT security-level 0 pppoe client vpdn group ATT ip address pppoe setroute !interface Ethernet0/0 switchport access vlan 2!interface Ethernet0/1!interface Ethernet0/2!interface Ethernet0/3!interface Ethernet0/4!interface Ethernet0/5!interface Ethernet0/6!interface Ethernet0/7!ftp mode passiveclock timezone EST -5clock summer-time EDT recurringsame-security-traffic permit inter-interfaceobject-group service DM_INLINE_TCP_1 tcp port-object eq ftp port-object eq ftp-data port-object eq wwwaccess-list ATT_access_in remark Linkstation Accessaccess-list ATT_access_in extended permit tcp any host 99.23.119.78 object-group DM_INLINE_TCP_1 access-list ATT_access_in remark Linkstation
[code]....
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Apr 26, 2011
To sum it up the ASA is maxing out at 7MB down on a 25MB connection. The connection was tested with the ASA removed and the connection is fine.
This popped out at me the most but i'm not sure what it means:
12884935775 switch ingress policy drops for eth 0/0
[code]....
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Oct 25, 2012
Shopping for a new home router/firewall. Trying to decide between a Cisco ASA 5505 or a juniper equivalent. What are everyone's thoughts?
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May 24, 2012
One of our hospitals keeps reporting that their internet is going out for a while than comes back up, sometimes they even have to reset the ISP modem for this it to work again. I upgraded and switched ISP to Time Warner Cable and figured it would essentially solve the issue, but there are still reports of internet outage and our new ISP has confirmed multiple times that their end is still up. Our ASA 5505 was configured by a previous employee, but when looking at the running config I noticed that the Interface for our ISP is NOT set to Duplex Full and Speed 100.
interface Ethernet0/5
switchport access vlan 2
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Jun 23, 2011
I have an ASA-5510 in a location that loses connectivity to the wan gateway after anywhere from five to fifteen minutes. At first I thought that the unit might be defective, but I replaced it with an ASA-5505 with similar results. A reload of the ASA-5510 will restore connectivity for the next quarter hour.
Here's the version information on the 5510:
Cisco Adaptive Security Appliance Software Version 8.2(1)
Device Manager Version 6.2(1)
Compiled on Tue 05-May-09 22:45 by builders
[Code].....
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Jun 13, 2012
I just got a Cisco asa 5505 with the next OS and ASDM info ASA 5505 OS 8.4(3) ASDM 6.47 I configured and enter all rules to allow incoming traffic to LAN but it's not working also, I have one host inside that is configured in a second IP and create the rule to allow traffic to it but it doesn't work too.
Problem 1 I have VNC running in port 5900 tcp and I want to connect from Internet using port 6001 and this has to forware the connection to the real VNC port. In the configuration I have a few host with the same configuration but I use different outside port to get it.
Problem 2. I have a second IP with services: SMTP, HTTP, HTTPS and port 444 all TCP forwarding to a server in the LAN.
Facts: SMTP. Every time that I do telnet to the second IP looking for the SMTP port, the firewall doesn't let the incoming connection goes through and the LOGGING screen doesn't how that connection.PORT 6001 (outside)this port is configured to work with the IP in the outside internface and it was to send the incoming connection to a host inside to the real port 5900.Can any one check my configuration if I'm missing anything? for sure I'm but I didn't find it. Bellow is the configuration, I masked the Public IPs just left the last number in the IP, also I left the LAN network to see better the configuration.
CONFIGURATION.
: Saved
:
ASA Version 8.4(3)
!
hostname saturn1
domain-name mydominio.com
enable password SOMEPASS encrypted
[code]....
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Nov 20, 2011
I am now going to configure IPSec VPN connection for Cisco ASA 5505 (Version 8.4)
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Dec 31, 2011
I have a branch office set up were all traffic goes back to the core, iincluding internet acces.
It has been working fine for a year, but recently I have started to see the firewalls Asa 5505 closing the connection and stopping the phone from answering the calls.
I have skinny inspection turned on all my branch offices, but had to turn it off at the one site to get one of my phones to registered.
I haven't made any changes to the network that would trigger this issue, such as upgrading phone firmware.
My firewall is configured for default deny, other than Skinny (tcp 2000), do I need Skinny inspection to be turned on?
It's turned on my 5 other branches.How can I debug why the skinny inspection is closing the connection?As a separate note this phone is part of a pool of phones that shares a common DN, would this be causing the issue?
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May 22, 2012
how can I setup that the backup connection will start but after 30s of icmp timeout the default gateway (tracket object - 192.168.1.1)
My configuration:
sla monitor 123
type echo protocol ipIcmpEcho 192.168.1.1 interface outside
num-packets 3
frequency 10
sla monitor schedule 123 life forever start-time now
route outside 0.0.0.0 0.0.0.0 192.168.1.1 1 track 1
route backup 0.0.0.0 0.0.0.0 192.168.2.1 254
track 1 rtr 123 reachability
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May 24, 2012
One of our hospitals keeps reporting that their internet is going out for a while than comes back up, sometimes they even have to reset the ISP modem for this it to work again. I upgraded and switched ISP to Time Warner Cable and figured it would esentially solve the issue, but there are still reports of internet outage and our new ISP has confirmed multiple times that their end is still up. Our ASA 5505 was configured by a previous employee, but when looking at the running config I noticed that the Interface for our ISP is NOT set to Duplex Full and Speed 100.
interface Ethernet0/5
switchport access vlan 2
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Oct 10, 2011
I have an ASA 5505 that during preak usage, likes to lose it's connection to the cloud for 50 seconds. The device is alive and kicking, can route between different interfaces, but it's connection to the cloud dies. This happens every 45 minutes or so during our peak internet usage.
the nastyness of the config, I was having issues getting PPTP pass-thru to cooperate, and never cleaned up after myself.
Result of the command: "show run"
: Saved
:
ASA Version 8.2(1)
!
hostname THEMAN-ASA
[Code]....
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Aug 30, 2011
I'm trying to learn Cisco ASA IOS commands, I have bought myself a 5505 ASA for my home network and plan to implement it. How best to configure it.
I have attached a diagram of how I want my network to look. The internet connection is via the Virgin Media cable modem.
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Sep 30, 2011
My little ASA 5505 is working great The device appears to be artificially crippled and limited to 10,000 connections. This isn't a "CPU limit" it's just some fake limit in the device as far as I can tell.
The problem we have is that we are only using around 500-600 connections and CPU usage is only like 25%, and yet the connection count is pegged at 10,000 and locks us out of our network.
I am pretty sure this is because there are a lot of "dead" TIME_WAIT connections hanging around not being used. In our application we only have the couple hundred connections but they do move around a bit every now and then.
Is there anyway to get the device to ignore the "dead" connections and not count them towards the artificial limit on the device given that it's pretty clear the CPU / etc., is not utilized sufficiently. These aren't real connections, we only have a couple 100 established, they do just move around a bit however.
We are really only using 500-700 connections according to our servers, the others are just sitting in TIME_WAIT doing nothing.
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