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About MichalM

Re: Problem with DHCP just after update MXes from 14.53 to 15.42.1

by in Security & SD-WAN
‎Oct 6 2021 2:55 AM
2 Kudos
‎Oct 6 2021 2:55 AM
2 Kudos
@cmrthanks for the explanation, somehow I did not found this info in the changelog.   ... View more

Re: Problem with DHCP just after update MXes from 14.53 to 15.42.1

by in Security & SD-WAN
‎Oct 6 2021 2:27 AM
‎Oct 6 2021 2:27 AM
Ok, i found the problem. Meraki in this update changes DHCP MAC address from appliances to vMAC from VRRP. I couldn't find such info in changelog...   ... View more

Re: Problem with DHCP just after update MXes from 14.53 to 15.42.1

by in Security & SD-WAN
‎Oct 6 2021 2:15 AM
2 Kudos
‎Oct 6 2021 2:15 AM
2 Kudos
I found the next thing. Just after the update to 15.42 in every VLAN appears a new DHCP server which is not on the well-known DHCP list. Its MAC address has changed three first sections. The last three remains the same as MX Master. Is it possible that the DHCP server changes its mac after the update?   ... View more

Problem with DHCP just after update MXes from 14.53 to 15.42.1

by in Security & SD-WAN
‎Jul 22 2021 7:08 AM
‎Jul 22 2021 7:08 AM
Hi, i have a problem with DHCP on all VLANs just after update MXes (to 250 in HA) from 14.53 to 15.42.1. Both MXes were working as DHCP server in all VLANs and till the upgrade all was ok. Just after update, i got: DHCP problem extra: no_offers_received, vap: 0, vlan: 248 Tried to restart MXes, disable/enable DHCP etc but without any results. Finally helped downgrade.   Do you know what might be the reason? Is there a special configuration to be done after the upgrade?   ... View more
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