Articles tagged with nbar

  1. Tired of ISP Traffic Shaping? Beat It!

    Posted on in Networking

    onion class 3 (photo by hedonist)I've written a lot of posts about various methods for blocking <acronym title="Peer-to-Peer">P2P</acronym> traffic, especially with Cisco's Network Based Application Recognition (NBAR). Although these posts are probably of interest to smallish Internet Service Providers and administrators of business networks, they don't have much use for the average …

  2. Installing PDLMs for Cisco NBAR

    Posted on in Networking

    donkey (photo by alexkalina)I've talked about using Cisco <acronym title="Network-Based Application Recognition">NBAR</acronym> frequently (check the Related Posts section below for more articles). One thing I've never pointed out is that not all versions of Cisco <acronym title="Internetwork Operating System">IOS</acronym> come with all protocol descriptions built in.

    Not …

  3. Cisco NBAR P2P Protocols

    Posted on in Networking

    Surprised Santa with Music SheetThe following are the Peer-to-Peer (P2P) protocols recognized by Cisco's NBAR Protocol Discovery.

    • bittorrent
    • directconnect
    • edonkey
    • fasttrack
    • gnutella
    • kazaa2
    • napster
    • winmx

    If I've missed any, leave a comment below or use the Slaptijack Contact Form to update me.


  4. Interesting OIDs for Cisco NBAR

    Posted on in Programming

    Coffee and a Crossword PuzzleI recently wrote a Perl script for MRTG that collects the bytes that Cisco NBAR Protocol Discovery has counted and graphs them against the total traffic seen by the interface. (Note: Leave a comment if you want me to publish the script on this site.)

    I thought I'd go ahead …

  5. Controlling Peer-to-Peer (P2P) Traffic with Cisco NBAR

    Posted on in Networking

    Is your network bandwidth being consumed by Peer-to-Peer (P2P) traffic? (Hint: If you don't know, it's time to fire up NBAR and do a little investigating.) One way to stop P2P traffic is to use an access-list to block traffic on the well-know P2P ports. Unfortunately, many P2P technologies no …

  6. Top 10 Protocols on a Residential Broadband Network

    Posted on in Networking

    I recently wrote about using Cisco's NBAR to investigate what protocols were in use on your network. I thought it might be interesting to take a look at the top 10 protocols on a residential broadband network. If you're running a large network, or planning a large network, perhaps this …

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