Important note about SSL VPN compatibility for 20.0 MR1 with EoL SFOS versions and UTM9 OS. Learn more in the release notes.

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Lots of discarded IPv6 packets in firewall log.

JohnHilton

Hi all,

Started to have this issue the last day in the office 30mins before i left for the weekend.

Basically our network has been going very slow and i have lots of this in the firewall..... like non stop. Am i right to believe fe80: is internally originated?

We have had some 3rd party work on the site. any ideas?

We don't have any ipv6 scopes defined in dhcp on the XGS or have any ipv6 addresses on any of our interfaces.

What's the best cause of action here to find the issue?

thanks



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[edited by: Erick Jan at 11:51 PM (GMT -8) on 3 Nov 2024]
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  • 0 in reply to JohnHilton

    fe80 are link local addresses, you might not have assigned an address but someone might have accidentally enabled IPv6 on an interface.

    Also check on new or modified devices on your network especially apple ones, they have a bad habit of enabling IPv6 after an upgrade.

    Ian

    XG115W - v20.0.3 MR-3 - Home

    XG on VM 8 - v21 GA

    If a post solves your question please use the 'Verify Answer' button.

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