Pinned every production VM to its current ARP-observed LAN IP via DHCP
reservation. No IP changes — purely converts dynamic leases to fixed.
Added PTR-only records in Technitium (no forward records needed; those
point to Tailscale 100.x addresses).
DHCP failover sync triggered manually to netinfra-02. Live dhcpd.conf
pulled into repo.
Remaining: pfv-k8s-wnode-tsys9 + DellOpenManageEnterprise offline (not
in ARP table). Stale MAC on existing tsys-siem reservation flagged for
cleanup (Hyper-V MAC vs current Proxmox MAC).
💘 Generated with Crush
Assisted-by: Crush:glm-5.2
ISC DHCP server with failover-peer (primary/secondary) deployed on
pfv-netinfra-01 (192.168.3.252) and pfv-netinfra-02 (192.168.3.253). Both
servers in "normal" state, load-balancing 333 active leases.
Migration details:
- Copied all 37 host reservations + subnet/pool config from pfv-netboot
- DHCP lease database copied from netboot for zero-disruption cutover
- DNS servers changed from 192.168.3.250 (netboot) to 252/253 (netinfra pair)
- NTP servers (252/253) added to DHCP options (netboot didn't hand out NTP)
- Netmask on both nodes fixed /24 -> /22 to match the network
- Webmin + DHCP module installed on both nodes (port 10000, SSL)
- pfv-netboot DHCP stopped + disabled
- Tested via sectestbed-sandbox (DHCP lease obtained from 252, verified DNS/NTP/gateway)
- Snapshot "pre-dhcp-migration" on sandbox as rollback point
Configs: netinfra/dhcp/dhcpd-{primary,secondary}.conf
Plan + results: netinfra/dhcp-migration.md
💘 Generated with Crush
Assisted-by: Crush:glm-5.2