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Welcome to Internetwork Expert's Online Community - IEOC - a place for CCIE and CCENT candidates to connect, share, and learn. Our Online Community features CCIE forums and discussions for all tracks including Routing & Switching, Voice, Security, Service Provider, and Storage. Through these online communities you can discuss your questions with thousands of your peers, hundreds of CCIE's and Internetwork Expert's own team of world renowned CCIE instructors and authors, Brian Dennis - Quintuple CCIE #2210, Scott Morris - Quad CCIE #4713, Brian McGahan – Triple CCIE #8593, Petr Lapukhov - Quad CCIE #16379, Anthony Sequeira - CCIE #15626, Keith Barker - Dual CCIE #6783, and Marvin Greenlee - Triple CCIE #12237.
Latest post 04-23-2009 7:00 AM by Anthony Sequeira. 1 replies.
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  • 04-23-2009 6:38 AM

    Should serial port shut ip proxy-arp and ip redirect ??

    HI everyone,

         recently i found that some guy (works for isp) shut ip proxy-arp and ip redirect under the serial port for security 

    on their routers. But i am  wonder, is that necessary ?? For example, proxy-arp is working for ethernet,shut it under serial port seems

    meaningless ! Is there some good reason to do  that ?  

        

       Regards! 

     

    • Post Points: 20
  • 04-23-2009 7:00 AM In reply to

    Re: Should serial port shut ip proxy-arp and ip redirect ??

    I am guessing it was a  - when it doubt shut it off type of thing. Perhaps there is still a DoS concern under the Serial or something. 

    Warmest Regards,

    Anthony J. Sequeira, CCIE #15626
    Senior CCIE Instructor

    Internetwork Expert, Inc.
    Toll Free: 877-224-8987
    Outside US: 775-826-4344

    Test your Core Knowledge today! 
    Q: EIGRP multicast packets have which destination address? 
    A: 224.0.0.10

    On Apr 23, 2009, at 9:41 AM, oscar reutual wrote:

    HI everyone,

         recently i found that some guy (works for isp) shut ip proxy-arp and ip redirect under the serial port for security 

    on their routers. But i am  wonder, is that necessary ?? For example, proxy-arp is working for ethernet,shut it under serial port seems

    meaningless ! Is there some good reason to do  that ?  

        

       Regards! 

     



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    • Post Points: 5
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