xp client can't login with secure extender SSL VPN after update firmware 4.30

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DanZyw
DanZyw Posts: 10 image  Freshman Member
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edited April 2021 in Security
xp client can't login with secure extender SSL VPN after update firmware 4.30 with previous firmware version no problem. W10 client no problem. Client secure extender updated to the last version. Can you help me to understand?

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  • Zyxel_Charlie
    Zyxel_Charlie Posts: 1,034 image  Zyxel Employee
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    Hello DanZyw,
    The SSL VPN server in firmware 4.30 use TLS1.2 and Sha2, however, the windows XP doesnot support it.
    Charlie
  • DanZyw
    DanZyw Posts: 10 image  Freshman Member
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    please modify firmware release note document pdf and remove xp SP3 from the list of OS supported

    "Following are the table list for SSL VPN supporting applications and operating
    systems:
     SSL VPN Client (SecuExtender) support : Windows XP SP3/ Windows 7/8/10
    and Mac OS 10.7 or later"

  • Ian31
    Ian31 Posts: 174 image  Master Member
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    Hi Charlie,
    What if import a certificate with SHA1 and enable SSLv3 on USG www service ?
    Could SecureExtender on Windows XP connect to USG ?

    Although it's have some security risk to enable legacy protocol.
    But is it possible ? 

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