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Forum Discussion

tantony's avatar
tantony
Luminary
Oct 24, 2018

Netgear switch dhcp

I have two Netgear switches (XS716T and XS728T) connected to a Juniper firewall.  When I connect the laptops to the switches, sometimes I get the incorrect dhcp and default gateway.  I called Juniper...
Troubleshooting
schumaku's avatar
schumaku
Guru - Experienced User
Oct 24, 2018

Check the switch and disable any DHCP snooping, DCHP static bindings, DHCP snooping persistent entries, ... 

tantony's avatar
tantony
Luminary
Oct 24, 2018

schumaku

so far, I'm only seeing DHCP snooping, and disabled on both switches.  I think I'm having the same issue, I'll double check tomorrow.

 

I don't have any static bindings etc.

 

I ran WireShark, and I can see the switches handling dhcp instead of the firewall for some reason.

  • schumaku's avatar
    schumaku
    Guru - Experienced User
    Oct 25, 2018

    Operating bunches of XS7xxT in core, backhaul, and device access with customers and here at home/office. All fully DHCP transparent, all DHCP is handled by the designated systems for the various VLANs (some on similar security appliances, some on Windows AD Servers) in a transparent way (with hundreds of systems/devices btw.).

     

    Proabbly time for a factory reset and a manul reconfig from scratch? 

     

    Without more insight it's hard to help.

     

     

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