Mohan.pr

Q: How to make below changes

TCP/IP Kernel Parameters

net.inet.ip.fw.verbose = 1 net.inet.ip.fw.verbose_limit = 65535

net.inet.icmp.icmplim = 1024 net.inet.icmp.drop_redirect = 1 

net.inet.icmp.log_redirect = 1 net.inet.ip.redirect = 0 net.inet.ip.sourceroute = 0 net.inet.ip.accept_sourceroute = 0

net.inet.icmp.bmcastecho = 0  net.inet.icmp.maskrepl = 0  net.inet.tcp.delayed_ack = 0  net.inet.ip.forwarding = 0  net.inet.tcp.strict_rfc1948 = 1



windows domain.

MacBook Pro, OS X El Capitan (10.11.5)

Posted on Aug 7, 2016 11:33 PM

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Q: How to make below changes

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  • by Diana.McCall,

    Diana.McCall Diana.McCall Aug 8, 2016 4:54 AM in response to Mohan.pr
    Level 5 (4,831 points)
    Apple TV
    Aug 8, 2016 4:54 AM in response to Mohan.pr

    Hi. Are you asking how to set these parameters in OS X, or how to find the equivalent settings in Windows?

  • by BobTheFisherman,

    BobTheFisherman BobTheFisherman Aug 8, 2016 12:32 PM in response to Mohan.pr
    Level 6 (15,741 points)
    Aug 8, 2016 12:32 PM in response to Mohan.pr

    What are you trying to accomplish? Why do you think you need to make those changes?

  • by Mohan.pr,

    Mohan.pr Mohan.pr Aug 8, 2016 8:38 PM in response to BobTheFisherman
    Level 1 (4 points)
    Aug 8, 2016 8:38 PM in response to BobTheFisherman

    its our company policy

  • by Mohan.pr,

    Mohan.pr Mohan.pr Aug 9, 2016 1:07 AM in response to Diana.McCall
    Level 1 (4 points)
    Aug 9, 2016 1:07 AM in response to Diana.McCall


    how to set these parameters.

  • by Diana.McCall,

    Diana.McCall Diana.McCall Aug 9, 2016 4:10 AM in response to Mohan.pr
    Level 5 (4,831 points)
    Apple TV
    Aug 9, 2016 4:10 AM in response to Mohan.pr

    What computer are you trying to set these parameters on? What operating system are you using? Since this is for your company, maybe a fellow employee can help you better.

  • by ChitlinsCC,

    ChitlinsCC ChitlinsCC Aug 9, 2016 7:38 AM in response to Mohan.pr
    Level 6 (8,217 points)
    Notebooks
    Aug 9, 2016 7:38 AM in response to Mohan.pr

    If company policy, then company IT admin should provide you with details on how to do it...

    If admin does not know how to do whatever is being required, he is no IT professional and you have found him out.

  • by Diana.McCall,

    Diana.McCall Diana.McCall Aug 9, 2016 9:26 AM in response to ChitlinsCC
    Level 5 (4,831 points)
    Apple TV
    Aug 9, 2016 9:26 AM in response to ChitlinsCC

    Easy now, easy...

  • by ChitlinsCC,

    ChitlinsCC ChitlinsCC Aug 9, 2016 9:48 AM in response to Diana.McCall
    Level 6 (8,217 points)
    Notebooks
    Aug 9, 2016 9:48 AM in response to Diana.McCall

    it SHOULD be easy for an IT professional making the demand, dontcha think? After all, they have the resumé

     

    Can you imagine the memo that says "make all these settings..." and that is it? No instructions at all on where and how? For ANY of their employees on any device? Wacky!

  • by rccharles,

    rccharles rccharles Aug 9, 2016 11:51 AM in response to ChitlinsCC
    Level 6 (8,522 points)
    Classic Mac OS
    Aug 9, 2016 11:51 AM in response to ChitlinsCC

    What are you trying to do? The big picture.

     

    Are you trying to performance tune your networking?

    https://rolande.wordpress.com/2010/12/30/performance-tuning-the-network-stack-on -mac-osx-10-6/

    https://rolande.wordpress.com/2014/05/17/performance-tuning-the-network-stack-on -mac-os-x-part-2/

     

    You trying to get on the internet?

    If your trying to establish an internet connection, you should try ignoring them.

    I'm not familiar with these parameters.  They seem like standard stuff and low level stuff.  Should not have to bother with them.  Ignore them.  The internet software on a machine is meant to be interoperable with any other internet machine without needed low level configuration.  You may want to configure after you get it working to improve performance.

     

    Are you trying to change your firewall parameters? 

      net.inet.ip.fw.verbose = 1

      net.inet.ip.fw.verbose_limit = 65535

     

    I think it should have been formatted as such.

     

    TCP/IP Kernel Parameters

    # these look like firewall parameters

    net.inet.ip.fw.verbose = 1

    net.inet.ip.fw.verbose_limit = 65535

    # these look like TCP/IP parameters to me

    net.inet.icmp.icmplim = 1024

    net.inet.icmp.drop_redirect = 1

    net.inet.icmp.log_redirect = 1

    net.inet.ip.redirect = 0

    net.inet.ip.sourceroute = 0

    net.inet.ip.accept_sourceroute = 0

    net.inet.icmp.bmcastecho = 0

    net.inet.icmp.maskrepl = 0

    net.inet.tcp.delayed_ack = 0

    net.inet.ip.forwarding = 0

    net.inet.tcp.strict_rfc1948 = 1

     

    windows domain.


    R

  • by ChitlinsCC,

    ChitlinsCC ChitlinsCC Aug 9, 2016 11:44 AM in response to rccharles
    Level 6 (8,217 points)
    Notebooks
    Aug 9, 2016 11:44 AM in response to rccharles

    So YOU are the IT pro demanding that the OP make the adjustments! It is all clear now!

    { I get it, amigo... you certainly see my point(s), memo saying "make these changes" without instructions - it may be that explaining WHY is not required - is a poor practice from a person that should know how as well as why }

  • by rccharles,

    rccharles rccharles Aug 9, 2016 11:59 AM in response to ChitlinsCC
    Level 6 (8,522 points)
    Classic Mac OS
    Aug 9, 2016 11:59 AM in response to ChitlinsCC

    This may be an administrator asking how you configure this stuff on a mac.

     

    Answer: It's unix.  You do it like you would on any other unix machine.    [ see prior post ]

     

    The TCP/IP stack had a common origin.  At one time, it was common for operating systems to be using a cloned copy of the same TCP/IP Stack.  I think the common one was UC Berkeley. Made interoperability real likely. Which was a good thing for all concerned.


    R

  • by ChitlinsCC,

    ChitlinsCC ChitlinsCC Aug 9, 2016 12:03 PM in response to rccharles
    Level 6 (8,217 points)
    Notebooks
    Aug 9, 2016 12:03 PM in response to rccharles

    You have likely hit the nail on the head... (I would have to ask how to config a Windoze box)

    It would be nice if folks - especially this OP - would tell us a full tale so that we can wrap our minds round the issue!

    My crystal ball is broke.

    At any rate, we seem to be dancing by ourselves

  • by rccharles,

    rccharles rccharles Aug 9, 2016 12:36 PM in response to Mohan.pr
    Level 6 (8,522 points)
    Classic Mac OS
    Aug 9, 2016 12:36 PM in response to Mohan.pr

    You sure it applies to you?  Is this for individual machines or perhaps only the corporate backbone?

     

    Be sure to do a complete backup of your machine before applying them.

     

    In reality, you need to know what these parameters do before messing with them.  You should be able to write a more detailed question before messing with these parameters.

     

    You should not need to mess with these parameters to add an end user mac to your corporate network.   If you do need to for an end user machine, your network is messed up.  You might want to mess with these parameters for adding a server.

     

    R

  • by ChitlinsCC,

    ChitlinsCC ChitlinsCC Aug 9, 2016 12:27 PM in response to Mohan.pr
    Level 6 (8,217 points)
    Notebooks
    Aug 9, 2016 12:27 PM in response to Mohan.pr

    We need much more information to give you specific help. Tell us, in detail what your instructions are.

     

    Tell us a Story

    - with a beginning, a middle and end. We need to understand everything that you know and have experienced.

     

    Quoted from  Apple's "How to write a good question"

       To help other members answer your question, give as many details as you can.

    • Include your product (device) name and specs such as processor speed, memory, and storage capacity. Please do not include your Serial Number, IMEI, MEID, or other personal information.
    • Provide the version numbers of your operating system and relevant applications, for example "OS X 10.4.11" or "Safari 4.1.3".
    • Describe the problem, and include any details about what seems to cause it.
    • List any troubleshooting steps you've already tried, or temporary fixes you've discovered.

     

    For a detailed "coaching", please see the User Tips Help us to help you on these forums and Writing an effective Apple Support Communities question

     

    "Keep It Short and Simple" - Take your time... but be thorough - ÇÇÇ

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