Cisco Firewall :: Configure 2911 ISR To Block Peer-to-peer Traffic?
Jul 25, 2011
I see that Application protection - blocking peer-to-peer file sharing traffic is a capability of Cisco IOS Firewall. How do i configure my Cisco 2911 ISR to block peer-to-peer file sharing traffic?
I bought my WAG320N, I too have the internet drop out and from reading in here is a very common problem. Cisco really should bring out a new firmware version and address this issue. Any way you can block peer to peer file sharing with the WAG320N? If so how do you go about it?
I am working on wi-fi networks (ISP), So I need to block the peer to peer on my network.My network involves cisco switch 2950/2960, cisco 2800 routers and Access Points, config for peer to peer blocking, for this where I need to config either switches or router.My network basic setup is, The internet will pass from router to switch and then Access Points.
One of the schools whose networks I administer has a peer to peer network running about 30 xp machines. DHCP is achieved and DNS settings distributed via a basic Linksys router; is there any way of distributing proxy server address and port short of entering manually in LAN settings of IE on every terminal - there is no budget to install a server.
I want to prevent guest from doing peer - peer communication on my Guest (5508) controllers. Is this a feature on the WLC or only by applying an ACL on the router interface?
I have a pair of ACE 4710 and I think I have all the failover configured correctly and it all appears to be working. My question is regarding setting QOS on the physical interfaces that are part of my port channel. I have qos trust cos enabled on all the interfaces in my port channel. These interfaces are connected to a 3750 swith. Do I need to configure QOS on the 3750 to allow the COS bit to pass through my 3750 to my peer?
I have pair of 5596 switches in vPC. One host say "HOST A" is connected to the primary vPC peer and other "HOST B" on secondary vPC peer.Both are in same VLAN 10. Both hosts are vpc orphan ports as their NIC is configured in active/standby mode.I have configured span session on both vPC peers with span source as VLAN 10 in rx mode.Span destination is connected to secondary vPC peer. The issue here is that I am not able to capture the traffic originating from HOST A destined to HOST B which is traversing vPC peer-link.Same issue occurs for the traffic in reverse way and span destination on primary vPC peer. In a nutshell, any traffic which crosses vPC peer-link is not getting captured.
What could be the issue and is there any solution for it. Below mentioned is the span config and relevant interfaces. [code]
I have a ASA 5500 series firewall and need to define another peer ip for site2sitevpn connection.Actually my aim is, ASA tries first peer ip of site2site tunnel, when ASA can not not reach this ip, try to reach another ip which i defined before.I can configure this scenario on Cisco Router with this commands:
I have 2 ASA 5505 Firewall, I Configured Site 2 Site VPN no both the fitrewall, as i have a dual ISP, i am able to create the tunnel with primary but once my primary is down i am not able to create the tunnel with back up ISP. During the troobleshoothing by typing Show isakmp sa and Show ipsec sa, i can see my tunnel is up, but not able to decap the packets.
I ran into a situation where I have to configure a router to peer with two un-unrelated routers (belong to two different organizations) using the same private AS.
Router A (AS 64514) --- Router B (AS 65007) --- Router C (AS 64514). I have control of Router B&C but not A. All the AS cannot be changed.
I am trying to connect a Control network that can not have access to the Internet, or any other network for that matter, to my Admin network so that I can retrieve trend data about the plant that goes into a database. Right now the process is print information, hand jam into excel spreadsheet, print again, and hand jam into another excel spreadsheet on the other network. Reports are printed automatically once a day, but would like a simplified way of getting data from one network to the other without having to re-enter data several times. Current policies stipulate no USB drives connected to Control systems. Even if we could loosen that, personnel needed to transfer data is not available and going to each individual machine would take more time than current system.Now that background is laid, I have two 2911 ISR routers with EIGRP configured, each with a 4 port EHWIC card. The 3 L3 ports on the router are setup as follows: interface G0/1 to the internet, interface G0/2 to a wireless back haul, and interface G0/0 for IT network. I then have 3 VLANs setup on the EHWICs for our Admin network. We will move the IT network to a VLAN on the remaining EHWIC port and connect the two 2911's through the G0/0 interface. I am going to have one computer on my Administration network dedicated to receiving the information and have a program that will take that data and import it to a database. I need to allow only that computer to receive traffic from the Control network and I need no traffic to flow back into the Control network. In other words I will transmit data from the control network to the admin computer using one protocol (TFTP more than likely) and block any other traffic coming out of and going into the Control network.
Why does Cisco recommend a configuration of originate-only on the ASA with multiple peers configured and the answer-only to the other end? Shouldn't it work as Bi-Directional ?
[URL]
The only scenario I see which could break is if both peers try to establish a VPN at the same time to the ASA. Is there any other reason ?
I have a few site-to-site VPNs connecting to my ASA 5520, but one of the remote VPNs is changing it's public IP, how can I change this IP on the ASA without starting again? On the ADSM it is greyed out so I can't edit it, but can I just change it in the CLI?
am in the progess of replacing a Zyxel USG 300 to a Cisoa ASA 5510.In the Zyxel I have some Site to Site, where the peer is a dyndns.org adresse, becourse the peer is a dynamic ip-adress.
I have maybe 10 site to site´s where the peer is a dynamic with a dyndns.org adress, and the presharedkey is diffrent at each tunnel.How can i make this configuration at the ASA 5510?
I've connected my 3 pc's to share file printer and internet using peer to peer connection but on the clients pc the internet connection is soooo slow? my two computers are windows XP an d one Windows7.
I have another odd issue (I get those alot) I have an asterisk box that moves around between 2 IPs, thus the dial-peers are unpredictable as to their target IP. They work as the dial-peer will eventually (after 1 min) time out and go to the other dial peer, but waiting 1 min sucks, and it's a tiny network, 5-10 sec would be WAY more than enouph. Does anyone know off hand a way to get them to time out faster?
I have a simple question regarding dead peer detection on the ASA 5520. I am using a cellular VPN device to connect back to an ASA 5520 and I have noticed that the connection drops at random periods during the day. The vendor for the cellular device recommends disabling dead peer detection on their device, which I have done. The question is, where is this disabled on the ASA? is it the IKE Keepalive setting under the tunnel group option?
I'm running a 5505 with DHCP on the outside interface. All 5505 are connecting to 5545.Can I configure the ASA for a site to site to automactically discover the the peer address and automatically establish a connection with 5545?In other words can I configure all settings for the site to site except the peer address. Once connected on network and get outside DHCP, can it also put that address is the peer section of site to site?
I have an ASA 5520 with multiple site-to-site VPN's. A remote customer has changed their Public IP address and now the VPN has gone down. How can I easily change the peer IP of the remote site to the new one without have to put the pre-shared key in again as we don't know what it is and they don't manage their firewall.
i still newbie to configure eBGP, i have Router 3600 series, and i configure BGP neighbor to my ISP, but the peer still don't established,there is warning like this, Connections established 339; dropped 339 "Last reset 2w4d, due to Peer closed the session No active TCP connection"
any one can explain to me about "due to Peer closed the session"? i've read some documents for troubleshooting BGP, and do some step to troubleshoot.
We have an HQ site with a 2811 (w/ADVSECURITYK9-M) acting as the firewall. We currently have 1 ASA5505 that has an established ipsec l2l VPN. I'm trying to connect a 2nd ASA, but I've noticed I can only add 1 cryptomap to the outside interface. A show ver shows 1 Virtual Private Network Module... Surely that doesn't mean only 1 VPN?Do I use one crypto map, and add a second 'set peer' & 'match address' inside the crypto map itself?
Any way of narrowing down a degub for a peer address only? For example, I currently run 'debug crypto isakmp 127' which captures everything, but can I run the same dVPN debug for peer address 1.1.1.1?I know you can run 'sh crypto ipsec sa peer 1.1.1.1'.We're using an ASA5520 (8.4.2).
I am unable to VPN to my network from outside using cisco VPN client to PIX-515E. When I try it say: Reason 412: the remote peer is no longer responding. From inside everything work ok, I can connect... (same computer, same settings...)