D-Link DIR-825 :: Block Inbound Traffic From A Specific IP?

Oct 5, 2011

How to configure the 825 to block inbound traffic from a specific internet IP address ?i noticed an IP and MAC that i don't recognize that is listed as a connection to my NAS's media server ...i blocked it in the NAS configuration page, but i don't want any unsolicited traffic into my network.

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Cisco VPN :: Block Unsolicited Inbound Traffic Through L2L On ASA5505

Apr 6, 2013

I have a working L2L between two locations. Location A and Location B.
 
Location A: 172.16.16.0/24
Location B: 192.168.0.0/24
 
I would like to block anything inbound to Location A from Location B that isn't initiated from Location A. The block should be done on the ASA5505 at Location A. Location B uses an ISR G2 router. i.e. Location A can start an SSH session to a server in Location B Location B cannot start an SSH session to a server in Location. .

I tried using a VPN filter on the ASA5505 but it isn't stateful, I cannot pass any traffic when using it.
 
Config on my ASA:
 
access-list vpn-traffic extended permit ip 172.16.16.0 255.255.255.0 192.168.0.0 255.255.255.0
access-list block-vpn-to-local extended deny ip 192.168.0.0 255.255.255.0 172.16.16.0

[Code]....

I also have an AnyConnect VPN setup for the ASA5505 and it is running 8.2(5).

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Linksys Wireless Router :: E2500 Block Outbound And Inbound Traffic On TCP 5222 / 5223

Oct 23, 2012

I 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. 

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Nov 15, 2011

How does a firewall block or filter traffic on a specific port or IP address?

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Jul 25, 2011

if the firewall rules in the RVL200 work for inter LAN routing as well as LAN<->WAN?  I need 2 separate networks in a house, 1 for business 1 for family, and I want to only allow my IP on network 1 (family net,10.0.0.0/24) access to network 2 (business net 10.0.1.0/24).  I want this as if I change rooms were a access point for business is not available I can use the home net and specific IP to access certain business net IPs.   I saw you can turn inter vlan routing on or off, but it wasn't clear on firewall rules.know of a similar router in cost but with gige instead of 100Mb ports?

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D-Link DIR-655 :: Create Firewall Rule To Block All DNS Requests Except To Specific Servers

Mar 3, 2011

Using a DIR-655, does anybody know how to create a firewall rule to block all dns requests except to specific servers?

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Mar 19, 2013

We have a Cisco 2811 running ITP IOS.  On that router we run the SMPP service.  A client on the network connects to this service, and we need to capture the traffic for debug.
 
I've tried traffic-export, but I cannot see any outbound traffic.I'm guessing that this is due to the fact that the outbound SMPP traffic is not transit traffic as it is generated by the router itself.
 
Is there any way to capture the outbound traffic?

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D-Link DIR-600 :: Block Incoming Traffic From An IP?

Aug 20, 2012

I would like to block incoming traffic from a specific ip on a specific port

This is what I have

source: interface: wan ip address range: 5.xxx.xxx.226 - second one is empty (valid ip instead of x's) protocol: tcp

dest: interface: lan ip address range: both fields empty port range: 139 - empty field

ON and DENY box is ticked name field has some text in it

I click save and get this pop-up: Incorrect source ip address. Invalid format of the start IP address. Current Firmware Version : 2.11 The ip is obviously valid, what should I do?

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D-Link DIR-600 :: Block Incoming Traffic / How To Create Rule Source

Jun 23, 2011

I need to block incoming traffic with Dlink DIR 600. I know how to create the rule source (WAN) to destination (LAN)  to deny all protocols. But what IP will I put in WAN? IP address of my Internet? Or how can I enter the ALL IP range in source...format for the IP (it's not 0.0.0.0).

I want to do this because in the DIR log section I'm being PING Flooded.  I already un-check "Enable WAN Ping Response" but still receiving the message.

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Firewall Rules To Block All Inbound Internet Access To Web Server Except Port 443

Dec 1, 2012

Setup firewall rules that will block all inbound Internet access to the web server except port 443, Setup firewall rules that will block all communication between the two internal networks, except ports 7000 and 1702

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Cisco :: Inbound And Outbound Traffic In BGP?

Dec 6, 2012

I have two ISP, I want to divide Inbound to ISP1 and Outbound to ISP2.

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Sep 17, 2012

I have a remote office with a 1.54mb circuit connected to our private MPLS network.  Our main office has a 20mb conneciton to said network.  I want to set a QoS policy for traffic from the remote office to our Avaya subnet within the main office.  This policy is to give priority to all traffic to the Avaya G350.
 
I have set up the outbound traffic policy on our remote office router using a policy map as follows:
 
access-list 101 permit ip any 192.168.0.0 0.0.255.255 (this represents the Avaya subnet)
 class-map match-all voice_outbound
match access-group 101 
policy-map voip_outbound
class voice_outbound
   priority percent 50
 interface Serial0/3/0
service-policy output voip_outbound
 
This works fine for outbound traffic.  Now how do I give priority to inbound traffic from the 192.168.0.0 network?  When I try to do similar command it says CBWFQ is only configurable as output, not input.
 
I'd just limit it at the far end, but that has a 20mb pipe.  All other traffic from our corporate datacenter, as well as internet traffic, flows from the main office to the remote office.  Should I just rate limit everything else destined for the remote office subnet, and if so, what's the best method?

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Cisco Firewall :: ASA 5520 - Allow Traffic From DMZ To Internet And Block Traffic?

Apr 29, 2012

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?

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Cisco Switching/Routing :: Inbound Traffic On 7606?

Jan 17, 2013

I have two Cisco 7606 routers using BGP to connect our customers to the internet.  Recently we added a new 1G circuit in addition to an existing 1G circuit and all traffic inbound is now on this new 1G circuit.  We would like to shift some of the inbound traffic over to the other 7606.  Our Tier provider has the same AS number for both paths.  One path goes directly to New York and the other goes to Boston then New York. 

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Cisco Routers :: RV110W Blocks All Inbound Traffic

May 28, 2013

CE IP - 172.18.10.10 /30PE IP - 172.18.10.9/30 I had configured some floating static route on the PE towards CE .The routes were installed correctly till PE - CE link was UP as next hop IP was showing as connected .Now the link has been removed and I am receiving a supernet of 172.16.0.0/12 from PE2 via MPBGP. Although the 1st static route for 10.10.0.0 is showing in routing table, the other 2 ( 172.17.0.0 & 172.24.0.0 ) donot show. I believe that as both the routes and next hop fall under the supernet , the static route is not installing. But I don't know why is this behaviour. I tried to remove the distance 250 from both the routes , but still the static route does not install. I tried this on GNS3 but got the same results .

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Cisco WAN :: 1811 - Restricting SMTP Inbound Traffic

Mar 16, 2012

I use a mail filtering service that delivers mail to me via SMTP on standard port 25 on one of my 5 static external IP's. I wish to restrict this to their IP's only (they have two) and I am unsure on how to do so? As it stands now, anything on the net can talk to my mailserver and my logs are filling quickly with failed attempts as a result. Here's my setup and what I am trying to accomplish:
 
mail filtering service -> my public ip:25 -> internal mailserver at 10.0.10.2:25, deny everything inbound except traffic from the mail filtering service, I am thinking an ACL would fit the bill here, but unsure of how to implement. Router is an 1811 with version 15.1(4)M3 IOS. WAN is on fa0, lan is on fa1.

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Cisco VPN :: ASA 5580 / Inbound VPN Traffic From Vendor Over NAT IP Address

Dec 25, 2012

We have a L2L VPN with a vendor and our outbound traffic (our local network is 192.168.0.0) NATs over one of our public IP addresses x.x.x.164 to their public IP address 128.x.x.x. In the beginning all our traffic was outbound (port 23) to the vendor and now we need to allow inbound from the vendor to specific 192.168 addresses on our network using port 9100. I’m uncertain as to what I should do to allow their inbound traffic to these IP addresses since we are NATing our entire network over one IP address. Note, the .164 public IP is also used to NAT to other vendors we have L2L VPN with. The VPN terminates to our ASA 5580 version 8.2.

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Cisco Firewall :: ASA5510 / Inbound Traffic Being Blocked

Nov 7, 2012

I have an ASA5510 with 8.3 and a Cisco PIX525 (retiring). The ASA was for VPN traffic only while the PIX was for all other Internet traffic. I'm trying to move all the traffic to the ASA5510 so I used the PIX to ASA migration tool. I migrated the PIX rules over to the ASA5510, however we can't receive email and there is no external access to our internal websites. But the VPN connections remain intact and internal users can get out to the internet.
 
When I run Packet Tracer on my outside (incoming rules) the packets are dropped at the inside interface. What am I missing?

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Cisco WAN :: IP Spoofing And Redirect Inbound Traffic C3750

Oct 9, 2012

We want design a topology based on transparent proxies using WCCP. Our proxies can do spoofing of user ip addresses. So, the HTTP request will go out our network with the user ip address as source ip. The HTTP Response will arrive with destination address the user ip address. We want use WCCP to redirect inbound and outbound traffic because we have c3750 with L2 WCCP support. The outbound redirection, when the packet is going out our network is simple. But, the problem is the inbound redirection. How we redirect this packets to proxies by WCCP?. Is it possible?. This redirection is done by c3750 using TCAMs/hardware?. Our throughput could grow until 2-3Gbps and we are worried about the performance.

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Apr 5, 2011

How do I block specific domains (pandora.com, etc.) in the Sonicwall? It seems like this would happen in the CFS but do I need a subscription for this? I don't want to subscribe to Sonicwall's filtering list, I just want to block a couple specific domains.

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Oct 31, 2011

I have a TL-WR740N Wireless Lite N Router and i want to block specific websites with it.

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Apr 5, 2013

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.

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Cisco Firewall :: ASA 5520 Inbound Traffic On Backup ISP Connection

Nov 3, 2011

I have a client that has an ASA 5520 that has two internet connections, FIOS and Comcast.  The ASA is configured to failover from the FIOS to the Comcast if the FIOS fails.  This works perfectly fine.  However, I was wondering if VPN and other inbound traffic will come into the secondary connection when it is active.  I think VPN will work inbound when the FIOS connection fails, but I am not sure about the other inbound connections. 

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Cisco Switching/Routing :: ASA 5510 Securing Inbound Traffic On VPN Using ACL

Nov 1, 2012

I have a VPN on my ASA 5510 between (A)192.168.255.0/24 and (B)172.20.2.0./24. The purpose of the tunnel is to send kerberos tickets from our domian controller on the A side, across to a server at B, and receive a respose. I want to lock down inbound traffic to the A network, but not sure of best method.
 
I initially tried using an ACL filtering on ports, but soon realised the incoming traffic uses a wide range of ports so this is not really possible.Seeing as the A side will always be initiating the conversation, I was wondering if I could use the 'established' option on the inbound ACL for the ASA at A side, so that it would block any flows that are not initiated by the A side.

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Linksys Wired Router :: BEFSX41 Creating Inbound Traffic Policy?

Feb 12, 2010

BEFSX41 V2.1
Firmware: 1.52.16
 
The manual states how to create an inbound traffic policy but if you follow the directions there is no place to select inbound traffic.From the manual: To Create an Inbound Traffic Policy1. Enter a Policy Name in the field provided. SelectInbound Traffic as the Policy Type.2. Enter the IP Address from which you want to block.Select the Protocol: TCP, UDP, or Both. Enter the portnumber or select Any. Enter the IP Address to whichyou want to block.3. Select Deny or Allow as appropriate.4. By selecting the appropriate setting next to Days andTime, choose when the Inbound Traffic will be filtered.5. Lastly, click the Save Settings button to activate thepolicy.When finished making your changes on this tab, click theSave Settings button to save these changes, or click theCancel Changes button to undo your changes.I want to filter out a range of ip addresses from trying to connect to my network.

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Dec 25, 2012

I have been trying to figure out a NAT issue on my 2811 and the inspect engine.I have 'ip inspect FW out' on my outside interface. If I turn it off, I also have to remove the access-list applying to inbound traffic on that same interface. Why is that? This whole thing centered around SIP registrations from devices on my LAN to my provider. The provieder is showing that I am registering from a high end port (1024 or something crazy). He said that it sounds like some type of SIP ALG or something on my router. For the life of me, I can't figure out what would be causing it. I am just using a standard route-map that points to the outside interface using 'overload'.

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Jun 22, 2012

I have two 1800 routers running VRRP. Also I have two sub interface configured on both router and both router connected to swith through thunk link. My goal is to limit inbound traffic to 3Mbps for both VLANs on router's inside interface which is connected to switch.

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Mar 2, 2012

We are using Cisco 3750 switches in our environment as distribution switches.We currently use to police inbound traffic, but we need to find a solution to limit inbound traffic per IP.Something like this “Inbound traffic for each IP can be maximum 1 Mbps” This can be done having, one ACL and one class-map for each IP, but in my situation is not a practical solution, because we have more than 500 IP’s on that site.
 
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Apr 4, 2012

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Block Access To Internet On Specific Time Intervals?

Aug 10, 2011

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Feb 11, 2013

I have an 1841 between my firewall and the ISP.  Three interfaces - multilink to ISP, FA to my firewall, and FA to my inside network.  I use the inside interface for configs aand snmp access, etc.   Only my ISP-assigned fixed address block will get routed to the multilink by the ISP but I am nervous about the inside interface sitting on my LAN.   I know I can remove it, but if I keep it there, how can I set up an ACL so that all traffic from the multilink interface is denied to the inside interface?  I suppose another way to think about it that the inbound iface can only accept traffic from its own outside, not from the router.I think this is fairly simple but I don't want to knock down the traffic if I get it wrong.

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May 4, 2011

I have Cisco ASA 8.0(5) and I need to block specific url to acees my https server in dmz ?I read about websence technology, but I think it's not free right? Also I read abotu policy inspection map's but in my case is HTTPS not http ..

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