IP Source Guard Static Binding Many IP to one MAC

PeterUK
PeterUK Posts: 2,705  Guru Member
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edited August 2022 in Switch Ideas

Currently with IP Source Guard Static Binding you can only add one IP to one MAC but what if you have many IP's to one MAC.

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  • Zyxel_Albert
    Zyxel_Albert Posts: 36  Zyxel Employee
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    Hi @PeterUK


    Welcome to Zyxel community!

    We've heard your voice. Could you please share us your application. In what circumstances would many IPs map to one MAC address?

    Thanks for your sharing and we are looking for your feedback.


    Sincerely,

    Zyxel_Albert

  • PeterUK
    PeterUK Posts: 2,705  Guru Member
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    edited June 2019

    I have this setup

    https://businessforum.zyxel.com/discussion/comment/8229/#Comment_8229

    and would like to have IP Source Guard with ARP Inspection on my GS2210-24 problem is I have two PC's with many static IP's to one MAC and the GS2210-24 can't map many Ips to one MAC address.

  • Zyxel_Albert
    Zyxel_Albert Posts: 36  Zyxel Employee
    First Anniversary Friend Collector First Comment

    Hi @PeterUK


    Appreciate your sharing and I can understand why you need to bind multiple IPs to one MAC now. But I'm curious about why the PCs have multiple IPs. Are the IPs used in the same time or they just change the IP from time to time? What I can imagine is the PCs are running VM, aren't they?

    We are looking forward to hearing from you.

    Sincerely

    Zyxel_Albert

  • PeterUK
    PeterUK Posts: 2,705  Guru Member
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    I have custom bind setup between the PC's with like query-source address 192.168.255.56 port *; so that the other PC sees the other IP in ACL to do the query request.

  • Zyxel_Albert
    Zyxel_Albert Posts: 36  Zyxel Employee
    First Anniversary Friend Collector First Comment

    Hi @PeterUK

    Thank you for your sharing. We will evaluate your requirement and transfer this post to idea to see if there are more people need such enhancement. It could help us on the judgement.

    Thank you