Cisco WAN :: ASA 5510 - Outside Interface Stops Sending And Receiving Traffic

Aug 8, 2012

Cisco ASA 5510.  Between 5 to 10 minutes of reseting the asa traffic stop accessing outside ip addresses.  Ping from console fails to ISP router IP. Ping to google name server failes.  I have reset to factory default only setting up nic and natting and it still happens. 

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Cisco Firewall :: ASA 5510 - Find The Receiving End Of Incoming Traffic?

Jul 3, 2012

We run a Cisco ASA 5510 and i need to find out how i can find the receving end on the inside of a vlan for traffic comming from outside.
 
ie incomming traffic on port 3937 and are NAT to eth 0/1.10
 
Thers a bunch of traffic on one port 33771 udp going in on 90.191.72.227 how do i trace this to the inside computer ???
  
lets say incomming traffic is on 90.191.72.227 and this is on eth0/0 this ip is NAT to a Vlan on the side for 10.10.0.0 with a subnet of 255.255.255.0

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Cisco Firewall :: 5510 How To Configure Local LAN SMTP Traffic Sending Through New Leased Line

Jun 11, 2012

We have configured ASA 5510. We have configure Ethernet 0/0 ( Outside ) connected with ADSL line and Ethernet 0/1 ( Inside ) Local LAN. we have configured NAT and all the traffic is passing through outside interface. Now we have connected ethernet 0/3 ( leasedline ) interface with static public IP. Now we want to allow  SMTP traffic to pass through  from this interface.
 
How to configure it if we want our local lan SMTP traffic sending through new leased line ( Static Public IP ).

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Sending But Not Receiving Packets?

Jun 26, 2011

One Day the internet is fine the next day The Internet Stopped working. The problem is my pc is sending packets but not receiving any i though it was a bug or something so i restarted my pc after i restarted my pc the internet was working fine until a couple of minutes passed it stopped receiving packets again.i tried resetting the modem but nothing worked.I tried winsock fix or resetting TCP/IP and stuff but nothing workscause its starting to frustrate me.

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Sending But Not Receiving Packets

Sep 26, 2011

Our computer is sending but not receiving packets. We've tried 3 different wi-fi adapters, and that wasn't the problem. We have no idea what's wrong? It won't pick up any wireless signals by the way, and it works fine while connected via Ethernet.

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LAN Sending 0 Packet But Receiving Many Unwanted?

May 27, 2011

my local area connection is sending 0 packet and receiving unwanted packet

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Apr 18, 2013

I had a customer call me and her desktop (wired connection only) is sending and receiving packets but she still cannot connect to the internet. Customer has tried power cycling her modem, router and desktop with no avail. Her system is running XP.

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Jul 28, 2011

When i look at the network wirless connection status something is constantly sending and receiving Bytes and lots of them.the modem gets warm from all of the activity.

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Cisco WAN :: 2911 Multicast Traffic Stops Passing Through Multilink Interface

May 8, 2012

I have configured multicast (ip pim dense-mode) on two 2911 routers that are connected by a Multilink (3Mbps) Wan connection.The configuration work fine for awhile and sometimes all day but at some point one of the Multilink interfaces stop passing multicast traffic.I perform a sh multilink 1 on the interfaces and one interfaces show the multicast packets incrementing and the other does not, it just stops.The only fix for this is to hard reboot both routers and the multicast traffic begins to flow once again.

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Default Gateway Not Available - Receiving But Not Sending Packets?

Feb 14, 2011

I have a laptop computer with windows 7 and im having trouble connecting to my wireless internet. It says that im receiving packets but not sending them. I have tried to troubleshoot the problem and it says that the default gateway is not available. I am not sure what is happening with it, it started having problems while at a starbucks, and now the wireless and the LAN is not working on it.

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Sep 27, 2012

Receiving more packets than sending in Vista Home?

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Cisco 2100 - Data Not Sending Or Receiving From Modem?

Oct 26, 2012

I'm using Cisco 2100 cable modem. It worked fine until some time later where the Data Send & Receive LED's stopped blinking. A man came to check if the cable was the problem by replacing it, but it wasn't. He claims it might be related to the laptop. I have tried several times restarting it. (I'm using mobile broadband) I would really like fast rather than slow internet ( I was limited so now it's slow but free)

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Aspire 5315 - Wireless Is Sending But Not Receiving Packets?

Jan 10, 2012

i have an acer aspire 5315 and im running windows vista home basic, My wireless has had no issues at all until i came to oklahoma yesterday and my internet will not connect to my dads wireless, but at my moms it had no issue, and at the airport i connected to there wifi with no issues also, is there some kind of setting that gets changed when you connect to the internet in the airports that wouldnt allow you to get on your internet at home?

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Routers / Switches :: Computer Is Sending Packets But Not Receiving?

Mar 8, 2011

Few systems on my LAN stops recieving packets but sending, this happened after i changed my switch, i run xp professional. i have tested cables, NICs,etc.

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Wireless :: Acer Netbook Sending Activity Packets But Not Receiving

Feb 3, 2012

My acer net-book is sending activity packets but not receiving. it is sending 800 activity packets and receive only 2

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Cisco Firewall :: ASA 5510 Stops Forwarding Incoming Traffic To Internal Servers?

Dec 5, 2012

Since the power failure two days ago, my -ASA stops forwarding traffic to internal servers, for no apparent reason. Packet trace shows all OK, packet capture buffer stays empty when I try to http into the mail server. The only way to get it working is to change the Outside Ip to the one used for mail, then to change it back. It will work OK for a few hours, then stop, with nothing obvious in the logs.

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Cisco WAN :: Allow ICMP Traffic On ASA 5510 From LAN Interface To DMZ?

Jul 17, 2012

I want to allow ICMP traffic on ASA 5510 from LAN interface to DMZ. I've permit any traffic and added ICMP to the inspestion list also but still there is problem. Belos is the configuration. The image is asa822-k8.bin

:
ASA Version 8.2(2)
!
hostname fw-01
names
!
interface Ethernet0/0

[code]....

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Cisco :: 4507 - NetFlow Exporter Stops Sending Packets

Nov 4, 2012

Have a Cat 4507 with Supervisor 7-E, setup configuration to send NetFLow information to an external server, everything worked great but after 2 weeks, the exporter is showing zero packets sent and the following error is at the console:
 
[code]...

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Cisco Firewall :: ASA 5510 Ftp Traffic Passing On 1 Interface But Not Another?

Dec 20, 2011

FTP traffic routed from outside to the inside interface works fine.  I have another interface with multiple sub-interfaces and vlans configured.  FTP traffic routed from the outside to vlan2_servers is not making it through the firewall.  I must be missing something.  I have attached my config.

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Cisco Firewall :: ASA 5510 High Traffic On Outside Interface

Jul 31, 2012

I have little experience with firewalls, what I've learned has been by dealing with issues like this that arise from time to time.I know, I need to upgrade the version. It's in the works now. Anyways, my question/problem is: Today I've received reports of slow internet access/activity and have noticed myself that it seems a bit slow today.  On the dashboard of our asa 5510 the "outside interface" traffic usage is running contstantly high. It's at the top of the graph. How can I tell what is causing the spike in utilization. It usually runs at about 1500-2000 Kbps, and now it's up over 10,000.

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Cisco Firewall :: ASA 5510 - Can't Move Traffic From DMZ To Outside Interface

Jan 16, 2012

I can't move traffic (isakmp udp_port: 500 & ipsec nat traverse udp_port: 4500) from my dmz to the  outside interface

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Linksys Wireless Router :: E2500 Stops Receiving Data For Any Large Download

May 3, 2011

My setup is as follows:
 
Linksys E2500 as DHCP client, all default network settings (MTU auto configured to 1500), connected to:
ZTE 831 II ADSL2+ modem in bridged mode
 
The issue is that whenever any large file is downloaded over HTTP, the download stops after about 4 minutes and never resumes. This results in:
 
1) HTTP downloads of anything > ~80 MB failing; tried using several browsers and CURL, all with the same results

2) iOS downloads in iTunes timing out

3) YouTube videos stalling every few minutes
 
Interestingly, Netflix streaming works OK. Perhaps that's because the protocol for Netflix is not a single large download but a bunch of smaller ones, but that's conjecture.
 
This all occurs over both wireless and wired connections to the E2500.
 
If I connect my Mac directly to the ZTE modem, I don't have the problem.

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Cisco AAA/Identity/Nac :: Specific Targets Not Receiving Syslog Traffic From ACS 5.3

May 9, 2013

We have a distributed ACS 5.3 set up - a PR and DR replicating successfully.I've set up 4 remote syslog targets. 2 of them are at the same site as the PR ACS and 2 are at the same site as the DR ACS.The logging collector is set on the PR ACS.
 
The problem is that it "appears" that  PR ACS  is only sending PR ACS syslog info to one of the remote syslog targets out of the four.
 
The syslog target which does receive from the PR ACS is at the same site as the PR ACS.
 
"appears" means that some one has looked on the syslog targets to see what's been received / or not received.
 
I've been told that the syslog traffic for  syslog targets is being received from the DR ACS. Which is strange as the PR ACS is the actual log collector (and is not at the same site as the DR ACS).
 
I've also got Alarm Syslog targets set up on the PR ACS , (2 are the same ip addresses used in the 4 remote syslog targets). IP addresses of the remote syslog targets have been double checked and can be pinged from each ACS (PR and DR).

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Cisco Firewall :: ASA 5510 7.2.1 High Traffic On Outside Interface Very High Input?

Oct 13, 2011

Today I've received reports of slow internet access/activity and have noticed myself that it seems a bit slow today.  On the dashboard of our asa 5510 the "outside interface" traffic usage is running constantly high. It's at the top of the graph. How can I tell what is causing the spike in utilization. It usually runs at about 1500-2000 Kbps, and now it's up over 10,000.

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Cisco Routers :: Sending All Traffic To VPN And Blocking Internet On Other End - RV042

Dec 28, 2012

I wonder if I can have a RV042 VPN Tunnel to a RV082, and in the RV082 block all traffic to the internet that comes form the PCs that are behind the RV042.
 
Remote PC -> RV042 -> VPN -> RV082 -> RV082 Firewall (block internet traffice, allow intranet traffic)

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Cisco Firewall :: ASA 5510 Block Sending Emails From Windows XP?

Apr 16, 2013

I have cisco ASA 5510 with basic configuration (default policies). The problem is that windows XP users are unable to send emails form MS outlook and unable to log on to Hotmail , Gmail or any mailing site. While windows 7 and 8 users are not facing any problem.

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Cisco Firewall :: PIX 501 / Can Traffic Goes From Inside Interface To Outside Interface

Oct 9, 2011

I have Pix 501 firewall and I'm just configuring the device for "Email Server" to allowing POP/SMTP.
 
Inside Interface Address: 132.147.162.14/255.255.0.0
Outside Interface Address: ISP provided IP address
 
My question is can my traffic goes from inside interface to outside interface? (because the inside interface address not from 10.0/172./192.168 private address)Also I'm allowing internet from this email server (132.147.162.14) so what my access list to be configured? and what my subnet mask shoud be there?
 
Pix(config)#access-list outbound permit tcp 132.147.162.14 255.255.0.0 any eq 80
Pix(config)#access-list outbound permit udp 132.147.162.14 255.255.0.0 any eq 53
Pix(config)#access-group outbound in interface inside

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Cisco :: Asa5010 Interface Stops Working?

Mar 5, 2012

I have a cisco asa 5010 where, during the process of configuring, the outside ports become down/down. The /0 port won't even reactivate after cycling power on the unit.Port /1 is the inside interface and it is not affected by the problems.I switched the outside port to port /3 and it worked for awhile then it stopped working. I switched it to Port /2 and the same thing.Port /2 and Port /3 are on after a power recycle but shut down completely (down/down) during the reconfiguration. It seems like a hardware failure, but I'm wondering if it could be anything else.

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Cisco VPN :: Stops Forwarding Traffic On Subsequent Connections 861

Mar 23, 2011

I have a very strange problem on 2 (independent) Cisco 861 routers in different places.They are both configured as easyVPN servers. One uses UDP, the other TCP. VPN clients connect by using Cisco VPN client software. This cannot be changed because the customer expects it this way. Both routers have the same problem:

* the first VPN connection after a reset works fine. Traffic passes through and it is perfectly usable. I can ping the internal network interface on the router side from the client without problems.

* the second connection (and all subsequent ones from different client machines etc.) connects fine, no errors on the client whatsoever (not sure I evaluated all possible debug output on the "server" side). However,  no traffic passes through. Pings do not come back from the 861 anymore through the VPN tunnel.I already enabled ICMP debugging and saw that pings are actually answered by the 861, but do not reach the client.The same seems to happen to any and all other packets as well.

* If I restart the 861 the very same thing happens: first VPN connection works fine. You disconnect, try another connection from the very same client computer, and it does not work anymore until the next router reset.I append the configuration for sake of completeness. confidential parts are represented by XXX. Some ACLs are not in use right now; I used them for testing. [code]

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Cisco Routers :: RV042 Stops Passing Traffic On WAN

Feb 12, 2012

We have a managed service provider voip network that requires us to use our own router for the data network. We wanted to use the RV042 for it's easy vpn setup. After installing it worked great for about 10 min. then the WAN port stopped passing traffic. 3 min. later it started working again. We tested the RV042 on a different network and it works fine. We tested an older Pix on the managed network and that works fine. But the RV042 will not work on the managed service provider voip network. The service provider says that on their end it shows our WAN port going up and down.

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Cisco Switches :: SG200-08 Web Interface Stops Responding

Aug 26, 2012

I bought a pair of SG200-08 switches a month ago and noticed that after a couple of weeks (give or take) the web interface stops responding (today being the 2nd time this happened). I am on v1.0.5.1 of the firmware on both switches. I can ping the switches just fine. I've run a port scan against then showing that port 80 is open. When I browse to either switch using IE9.0 or Chrome (v21) both show page loading however it remains blank - eventually the browser times out. I've tried multiple machines (just in case of port blocking) however always the same result.
 
To correct this I power cycle the switches and the web interface starts working.On the switching side, both seem to be working as there doesn't isn't any network impact (from what I can tell) however not being able to access the web interface is very irritating, not to mention making me wonder what else isn't working.

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Cisco Switches :: SG300-52 Stops Forwarding Unicast Traffic

Feb 6, 2013

We have problems with 3 switches in our network.
 
Users continues receive adresse via DHCP, but no traffic was forwarded. After reboot switch works fine about one week and problem arrives.
 
I telnet to one problem switch and try to found reason by reaply acl and source guard and saw some strange message:
 
nov-20(config)#int r gi1-48
nov-20(config-if-range)#no service-acl input
nov-20(config-if-range)#service-acl input 2
Exceeded the maximum ACE allowed in the system.         -repeated 48 times
 
Configuration and log int attachment (show tech-support)
 
port 52 - uplink, 1-47 - users, 49-51 - downlink switches (SPS224g4) with aprox 200 pc connected. 48-ups

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Cisco Routers :: RV042 Does Not Load Web Interface / VPN Stops Working?

Aug 12, 2011

We bought an RV042 at the end of June. It is used as a gateway and VPN router. DHCP server is disabled and all IPs are configured manually.Every once in a while (Tuesday night, then Friday night - yesterday, it has hapened once or twice before that) the router appears to restart (see log below) then comes back up with system time of Jan 01 2010. At this point the router will no longer load its configuration page (https://10.29.238.197:16443/) and VPN connection to our customer in Africa drops. However, devices behind the router can be reached and can access the internet. The only way to fix this is to power cycle the router at which point everything starts working flawlessly again.The PID VID is RV042 V03 running firmware v4.0.3.03-tm (May 12 2011 21:27:37). Our RV042 is a newer one with Cisco SMB Router branding not the older Linksys branding.
 
From the log when the router reboots:
 
Aug 12 22:38:42 2011VPN Log(g2gips0) #141: retransmitting in response to duplicate packet; already STATE_QUICK_I2Jan 1 01:00:05 2010System Logheart : System is upJan 1 01:00:13 2010System LogWAN connection is up : 10.29.238.197/255.255.255.192 gw 10.29.238.225 on eth1Jan 1 01:00:15 2010VPN Log(g2gips0) #1: [Tunnel Negotiation Info] >>> Initiator Send Main Mode 1st packet 
 
I looked at the log more and all the usual messages assosciated with VPN being established are there - the last thing in the log before the router coming back up again is:
 
Jan 1 01:03:49 2010VPN Log(g2gips0) #4: [Tunnel Negotiation Info] Quick Mode Phase 2 SA Established, IPSec Tunnel ConnectedJan 1 01:03:49 2010VPN Log(g2gips0) #4: [Tunnel Negotiation Info] Quick Mode Phase 2 SA Established, IPSec Tunnel ConnectedJan 1 01:03:49 2010VPN Log(g2gips0) #4: sent QI2, IPsec SA established {ESP=>0x575a01c0 <0x6534ae4e 
 
So it even claims the tunnel should be up but I can never reach anything on the far side.

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