networking but can understand with a bit of explanation.. I own a restaurant and provide free WiFi for my customers with a Cisco E2500, I am gettign bills that are through the roof, I contacted my ISP and was told users were accessing P2P downloads(uTorrent, etc.). How can I block these applications?
View 1 Replies I have a LAN with several linux boxes (Fedora 17, both 32 and 64 bits), as well a a WInXP box. All of these are connected to the same switch, which is connected to the inside port of my PIX 515.
For a few sites (mozilla.org happens to be one of them), for http access, the tcp connection is established, but the "GET" request - or anything else for that matter - will not go through the PIX (from inside to wan). I have verified this by first, using wireshark to watch the packets being sent out from the client box, then by using the trace function in the PIX to see that the packets ARE arriving at the inside interface, but ARE NOT sent out of the wan interface.
This is for the linux boxes ONLY. When I do the same thing with my WinXP box, all works: in the PIX trace, I see the packets arrive at the inside interface, and leave the wan interace. And access to these sites are okay.
(What's a bit weird, although somewhat expected, when I connect my android phone to my LAN via WiFi, it too is unable to reach those sites - but then again, android is linux, right?)
In addition to the tracing, I have narrowed this problem down by connecting a linux box directly to my DSL router, then replacing the PIX with a simple router/gateway. Both of those solutions work.
Some background:
I have been using this PIX for about 10 years now, with the same configuration (except IP addresses). Only in the last several months has this problem started to show up.
I got this pix from a dead company at a really great price (free), so I'd like to keep it, and not have to spend money on something else. I don't have any support license, and have not been able to get any software upgrades. Here is its version info:
taz(config)# sho ver
Cisco PIX Firewall Version 6.2(2)
Cisco PIX Device Manager Version 2.0(2)
Compiled on Fri 07-Jun-02 17:49 by (code)
Serial Number: 405200362 (0x1826ddea)
Running Activation Key: 0x38ac31f3 0x0630df47 0x9a77b805 0x8bc39a60
PS: Since this PIX is at its end of life, I was wondering if any of the software upgrades would be now available without a license?
OK, I have a 2921 on 15.3-2T. ZBFW is working from the inside to the outside, but the DMZ is not being blocked at all to the inside. I am currently running with subinterfaces. All interfaces have zones attached. I have policies from inside to outside and DMZ to outside, those work fine. Without any policy from DMZ to inside, it can pass traffic freely from DMZ to inside. I have tried making an explicit policy to drop all to inside, still passes. I ended up just having to put an ACL on the interface
I already tried upgrading the IOS, that is how I ended up on the newest version. This is connected to a 2960S with a trunk port. Everything else works perfectly except for the DMZ security. I haven't had time to try to lab it up yet, but wanted to see if any reasons this shouldn't work, as all documentation says it should drop all traffic unless you make a policy to pass traffic.
I have a cisco ASA5505, it runs a wide site to site VPN network and has 4 servers connected to it
10.50.15.4 > fileserver
10.50.15.5 > domain controller (exchange)
10.50.15.6 > terminal server
10.50.15.7 > terminal server
Now yesterday i removed 10.50.15.6 and replaced it with a new terminal server with the same ip address, ever since the ASA is blocking traffic between it and the domain controller (example)
2Oct 27 201214:51:0510600710.50.15.655978DNSDeny inbound UDP from 10.50.15.6/55978 to 10.50.15.5/53 due to DNS Query What has me baffled is the only thing different between today and yesterday is the new server is windows server 2008 and the old one was windows server 2003. The new server has the same LAN ip address as the old one to make the changeover seamless for the users.
why all the sudden my ASA has decided to block the traffic between those machines? all the other machines can talk to it fine just not the domain controller, and seeing that this is a terminal server naturally you can see the problem i face!
this router has worked flawlessly for 2 years now without any config changes and i cant work out why its blocking traffic between those 2 machines.
I just made a move from a PIX 506 to an ASA 5540. I have a user that currently logs into a web portal and runs a job. It is now erroring out. When I run the test it gives me the following message:
Testing ports...
Port 1433: Failed
Port 1150: Success
Port 80: Success
Port 443: Success
One or more tests have failed
The computer we access this site from is on the inside network and the ACL says permit ip any any from the inside out so I am not sure why it is failing. Under the ASA Home screen I see the Top 10 Protected Servers under SYN Attack and it appears that the ASA thinks this is some sort of attack.
I have a RV110W that's been in service since Dec 2012. All Everything is working fine except every month or so the firewall starts blocking all inbound traffic. It does not respond to remote management access. If I reboot the firewall (pwr off/on) everything works correctly for the next month or so and then it begins blocking all inbound traffic again. Local access to the Internet and VPN tunneling are not affected. When it's working, all my rules and port forwarding work correctly.
View 2 Replies View RelatedPrevious attempts to set up these NAT rules has been met with minimal success. We have been able to get the NAT rules created, and able to ping our inside servers and receivers from a different outside network, but every time we get that far our internal network crashes. Running the Packet Trace utility via the ASDM shows that internal traffic from the servers to the workstations is being blocked by the default implicit rule under the access rule heading that states "any to any, service being ip, action= deny". Reverse traffic from the workstations to the servers is being allowed though. In an effort to start over again, the Cisco ASA has been Factory Defaulted via the CLI, and has had it's Inside network, and Outside IP address set back up. DHCP pool has been setup for a minimal amount of addresses on the inside network, since most of our equipment will always be assigned statics. We reset our static NAT policies, and seem to be having the same problem. My partner and I have been working on this for some time now, and have ourselves so frustrated that I know we are missing something simple. [code]
View 10 Replies View RelatedMy internet link is connected on Internet Router & below downwards Cisco ASA 5520 is connected.ASA is connected with core switch cisco 4510 on downwards. our web based mail [URL] is hosted outside.
Lets suppose ISP pool is 4.4.4.0/28.suppose owa server is Static natted on ASA with 4.4.4.4. my machine traffic is going to internet with same ISP with PAT on Cisco ASA & internet is working on my machine. if i want to access {URL} or ip base for mail access, its not working & also it is not pinging. i suppose to ASA is blocking for returning traffic.
is there any way to traffic will go via same Firewall & comeback on same firewall port?
I have a 1921 K9 with a 4 port 10/100/1000 EHWIC switch.
Interface 0/1 = 192.168.1.0
EHWIC = 192.168.5.0
I have Active Directory setup on the 192.168.1.0 network. When I attempt to join the domain from 192.168.5.0 it joins but I get errors. After some troubleshooting using portqry I have found that the services related to class map DomainTrafficUDP are being reported by portqry as being filtered regardless of policy map settings (currently set to allow).
Building configuration...
Current configuration : 18833 bytes
!
! Last configuration change at 11:20:25 NewYork Thu Apr 19 2012 by dave
! NVRAM config last updated at 13:56:45 NewYork Wed Apr 18 2012 by dave
!
[Code].....
I am attempting to block outbound traffic for a specific PC on my LAN using the ASDM.
View 2 Replies View RelatedI have a Linksys E2500 wireless router. It seems to be blocking a website (evernote.com). I cannot access this site from any of the computers/ devices in our house, whether they be connected by ethernet or wireless. However, when i move to a different network, I can connect to this site immediately from exactly the devices that do not connect in our house.
How can I determine how/if the router is somehow blocking this site? I have reset the router and upgraded the firmware. Same problem persists. I see nothing in the router settings that would be blocking this site, and I have certainly done nothing intentional in the settings to block this. We used to be able to connect to this with no problems, but all of a sudden, we are blocked.
I have a Linksys E2500 Firmware Version: 1.0.03 and am using the "IPSec Passthrough" for work. On a typical day I'll sign in to my work's VPN, do my work, sign off in the evening, and read my personal email with a direct connection to the internet.
Then on the next morning, I am unable to connect to work until I go to http://192.168.1.1/index.asp and click "reboot." And as soon as the modem finishes rebooting, my laptop can connect to work. I've tried this several days in a row now, and indeed all I need to do to get the VPN passthrough working is rebooting the modem.
Nothing under "Applications & Gaming" is set. I've seen some posts about having a trigger on UDP port 500, but I'm not quite sure how to translate it for the E2500. Plus I'd rather the router "just work" day after day for VPN and everything else, like my old router did! Is there some other setting to try or clearer directions for a bulletproof IPSec passthrough on that unit?
I just installed the E2500 to replace my older router. With my older router I was able to share files between the different computers in my house. All I did was replace the old router with the new one and now they cant share files? I looked through the router settings and cant find anything showing firewall blocking the file and print sharing. why I cant share the files and how to allow the file sharing?
View 1 Replies View RelatedI have a Cisco 2500 Wireless Controller connected and controlling 5 Cisco AP's. Everything works fine except one device.
This device is used to connect to our AP wirelessly and then any of the wireless laptops can use programming software to connect to the device and program through it. I can successfully set up our device on the network and all PCs can ping it, but the programming software refuses to connect to it. I spent an hour and a half on the phone with the device people who assure me its the network. So, I bought in a cheap Linksys router, hooked one laptop up to it and configured the device wirelessly. With that, the programming software works.
what should I be looking for in the Wireless Controller that may be blocking direct connection to the device even though I can ping it?
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)
I've blocked all traffic on port 80 (Advanced-Access Control- Apply Advanced Port Filter- All IP range and Port 80 selected) to avoid any kind of Web Access. I won't use Web Filter because there are too many URLs to be blocked.
However I have a problem to keep Google Earth working, since it uses port 80.
Is there a way to keep Google Earth working, even blocking traffic on Port 80? I've tried configuring an application rule to let Google Earth working, but it didn't work (it seems that I can not create an exception for Filter Port) .
I inherited a Cisco ASA 5505 and am trying to piggy back the device off of an established Network. Here is the basic layout:
192.168.10.1 (Core Router - Handles DHCP/DNS)
192.168.10.9 (ASA 5505 - Piggy backing off of Network)
192.168.40.x (ASA 5505 - VLAN)
I'm able to get onto the Internet without any problems. Devices from the 192.168.10x Network can not ping the inside VLAN1 (192.168.40.x). However, I would like traffic going from the inside VLAN to the Outside VLAN to be blocked, except for 192.168.10.1 and 192.168.10.9. I've tried using ACL's but end up killing my Internet connection. 192.168.10.1 is the default route and is how I get out to the Internet. Is this possible? Essentially, I'm trying to set up a small Network that guests can connect to. The idea is that they can get to the Internet, but that is it. They can't get to internal resources on the 192.168.10.x Network
Here is the config:
ASA Version 8.2(1)
!
hostname ciscoasa
enable password EeCsulrpu.9LalEE encrypted
[Code].....
We have been deploying Cisco SF200-24P switches for our systems for over a year now. They connect to a Cisco 881 router. In many cases we are also deploying Cisco AP541s.Over the last few months, on an intermittent basis, the switches will simply freeze, blocking all traffic flow. The power LED also goes dark. It appears the switch has frozen. The only thing that seems to revive the switch is a hard reboot by pulling the power cord. In the last couple of weeks, one site in particular has gone down a handful of times. That client of our is fed up. Our patience is running thin too.
I cannot see any indications in the logs to any event that might give a clue as to the problem. We definitely see this problem with the 1.2.7.76 firmware and the 1.2.9.44 (latest as of typing this). Not sure if with earlier 1.1.2 firmware.Without a fix, we likely will have to change switches and possibly vendors as we need a reliable switch.I see some vague references to a similar problem. And one reference to a SG300 series having what sounds like the same issue.
I have an E2500 configured inside my network. It is configured to give wireless PCs (This subnet is connected to a Lan port with 10.30.0.0 address) another subnet than wired PCs (this subnet is connected to Wan port 192.168.0.0). Since i configured i can access from wireless PCs to servers and PCs in the wired subnet but cannot access from wired computers from to wireless PCs. I suppouse it is because traffic is restricted from Wan to Lan.
View 5 Replies View RelatedI have an E2500 router, running the latest firmware 1.0.7.
Where or how can i see which is the machine (mac or ip) that is doing more traffic, in fact i would like to see what computers are doing how much traffic.
This is a default on most routers, its so weird to not been able to find this on a Cisco product.
My home web hosting used to work. But because of changing ISP from Verizon to TWC, TWC gave me a modem-router and I bought my own Linksys E2500 router. Both Verizon and TWC services I subscribed are Dynamic IP. I use a third party to redirect the web traffic to my home.TWC gave me a simple modem-router in a box. Input is coax and outputs are 4 ethernet ports. I use one of the 4 ethernet outputs of the TWC box to connect to the internet ethernet input port of the E2500. All my wire and wireless devices are now feeding off the E2500. All wireless and wired devices work and can browse internet through the E2500.I have assigned one computer as the web server and set the internal IP addess of this computer as 192.168.1.128. This is the same for the setup with Verizon before.I loaded the CD came with the E2500 router and can see the LAN 192.168.1.128.My problem starts from here, I do not know how to set the port in E2500 to make the web traffic to 192.168.1.1281. Using the E2500 CD, I click to "APPLICATION AND GAMING", then "SINGLE PORT FORWARDING". under the APPLICATION NAME, I select one of the box to HTTP and type in 128 under "TO IP ADDRESS". I then click ENABLED, then "save settings" . The 192.168.1 is fixed in this window, I can only type 128.This does not work. I can browse internet but cannot access my website from any machines using domain name.Then I tried:2. with item 1 above, I continued to do SETUP>>BASIC SETUP>>DHCP RESEVERSATION. I can see the compute/sever name and the 192.168.1.128. I then click the "select" and save the client.I restarted the computer/server, I unplug and plug the E2500 power. I check the server internal IP address and it is still the same. But I just cannot browse to my website. I can browse other places.
View 9 Replies View RelatedI am trying to block outbound and inbound traffic on TCP 5222 and 5223 on E2500 but cannot figure out how. The reason is I have kids in my house using KiK (texting app) on iPads, iPods etc. My goal is to eliminate this applications ability to function for ANY wireless device connected to my WLAN.
View 1 Replies View RelatedI'm trying to troubleshoot an ASA5505.
The original goal was to block "Mumble/Murmur" (a voip app) traffic, which runs on TCP/UDP 64738, both inbound and outbound, except to a certain host (63.223.117.170).
However, when nothing I tried seemed to make a difference, just to troubleshoot, I decided to try blocking all inbound traffic. I first disconnected ethernet port 0/0 to ensure that it was cabled correctly and the outside interface went down when I did. That worked as expected, so I confirmed I had the right interface and it was cabled correctly.
I then applied a "any any deny ip" rule as the first element in the outside interface access_list, as you can see below. However, it appears to have had no real effect and the hit count is very low (it should be astronomical).
show ver
Cisco Adaptive Security Appliance Software Version 9.0(2)
Device Manager Version 7.1(2)
Compiled on Thu 21-Feb-13 13:10 by builders
System image file is "disk0:/asa902-k8.bin"
[Code].....
We are looking to implement traffic shaping/policing primarily for P2P traffic. As natively the ASA5550 is only capable of p2p inspection if the traffic is tunneled via port 80 is the AIP-SSM the way forward? We have 2 5550s in active/active failover config. As a side note we are also looking to implement an IDS/IPS system so could this module cover all?Is this module going to provide the desired outcome or is there another module/device out there better suited for this? I would prefer to use the ASA5550s as opposed to implementing another product if only that we can make use of the investment we already made on these devices.
View 1 Replies View RelatedI am testing limit bandwith using my ASA 8.2, i am trying to limit internet access for certains users , i order to save Bandwith for the important things but i can´t get any limitation
My configuration is the following, the acces list is just for my pc in order to test, and the service policy is applied to outside interface (called internet in my case) for incoming traffic
access-list Internet_mpc_1 extended permit ip host 172.16.127.70 any class-map Internet-class-TEST match access-list Internet_mpc_1 policy-map Internet-policy-web class Internet-class-TEST police output 1024000 1500
service-policy Internet-policy-web interface Internet
With show service policy i can´t see any activity on the policy , but if i do a similar configuration for inside interface outgoing traffic i can see packets allowed and dropped
I have an ASA 5520 with the below config
Gi0/0: outside (Internet)
Gi0/1: inside (Internal users)
Gi0/2: DMZ (web servers, ftp, Mail etc..)
I have a SMTP relay deployed on the DMZ for mailing. I have also a mail servers installed in the internal lan,
I want to allow trafic from dmz to reach internal lan, and i want normally also allow stmp relay from dmz to reach Internet.
How can i block trafic from DMZ to reach Internal Lan (instead of smtp) if the to allow trafic from dmz to internet i must put ANY in the policy?
For allowing trafic from DMZ to reach Internet, the policy must be DMZ -----> ANY ----->Services., this policy means DMZ can implicity reach Internal Lan?
I have cisco ASA 5510 with ios version 7.07 & all users are browsing the internet via PAT through ASA. i want to block some sites/URLs like facebook, yahoo etc.
View 2 Replies View RelatedI set up a cisco 2811 to replace a netgear router at the office. I have nat set up and with ccp I added a firewall on the router using the basic firewall wizard. Just about everything works internet, receiving and sending emails on exchange from the pc. Issue I'm having noone can access the company email on their phone.Also theres a camera system that would be accessible to view from the live feed from outside the office and my boss can't access the camera. I port mapped all the custom applications and added new traffic rule from self -> outzone. It didn't work tried to add one from outzone -> self or inzone but i get a prompt stating it only accepts protocols tcp,udp, sip, h323, icmp and a few other I can't think of. I'm pulling out my hair trying to get this to work everything worked seamlessly on the netgear router and nothing was really defined just the inbound ip address of the applications and protocols that are allowed.
Lets say for reference purposes my ip addresses for internet is
internet
55.34.23.43 /24
email server
192.168.10.252 /24
web cam application
192.168.10.10 /24
8000 in
8001 out
I have ASA 5505 running 7.2.4, I want to prevent users accessing some web sites such as facebook , youtube and hotmail etc.
Which ASA 5505 IOS version should I use to block web access?
I don't want to isntall a dedicated filtering server ( websense etc) , I just want to block web sites statically on ASA 5505 via ASDM as I only have few sites to block.
know if ASA 5505 can do URL filtering, and what IOS is required ?
I have a Cisco ASA 5510. I have detected an infected workstation on my internal LAN which has caused my IP to be blacklisted by Barracuda Networks and other RBL. I have scanned and cleaned the workstation removing the spambot. I want to prevent all my internal workstations from sending SMTP traffic on Port 25 through my ASA 5510 device. I only need to allow my Exchange Server access to send out traffic on port 25. configure this setup using ASDM 5.0? I know it may be easier using CLI, but using the ASDM would really be preferred.
View 4 Replies View RelatedI am working on an ASA5505 and am trying to open the ftp port. I have a server (192.168.10.202) on the local LAN which is attempting to download antivirus updates from the net via ftp.
Saved
:
ASA Version 8.3(2)
!
hostname SITE
enable password XXXXXX
passwd XXXXXX
names
[code]....
I purchased a SA520W for my company, and i have some probles for configuring firewall. I want to deny access to facebook, youtube and twitter but not for 4 hosts which needs this websites for work. I tried to configure content filtering > blocking URLs but with this solution, I deny acces for all users, So, I tried to make IP v4 rules :
The 4 hosts who may access to these websites are 192.168.50.124 to 127
Example :
FROM Zone : LAN
TO : WAN
Service : Any
Action: block always
Source hosts : 192.168.50.32 to 192.168.50.123
destination hosts : 66.220.158.11 (one of the facebook's ip)
but it does not work. So, I am looking for an other solution, or maybe my rule is not correctly configured ?
How to block a single website, but I want to do the opposite. I would like to block all website except for a handful of them. Any example configs?
View 3 Replies View Related