2026-07-02 20:01:45 +00:00
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# CCTV segment on a dedicated pfSense leg, not an 802.1Q trunk
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Status: accepted (2026-07-02)
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2026-07-02 20:25:28 +00:00
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2026-07-02 20:01:45 +00:00
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The first owned camera at the Sofia/Vermont site (`vermont-garage`, HiLook
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IPC-T241H-C at the garage entrance) needs to be network-isolated: its cable is
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physically exposed outside the apartment, so anything plugged into that cable
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must land in a segment that can reach nothing. The original design doc
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(NAS: `Emo shared/Claude shared/garage-camera/`) called for an "802.1Q trunk
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to pfSense" — but nothing in this network terminates dot1q on pfSense; the
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site idiom is one vlan-aware Proxmox bridge → one tagged VM NIC → one clean
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untagged pfSense interface per segment.
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**Decision:** the CCTV segment (`dCCTV`, 10.0.30.1/24) rides a dedicated
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physical leg — R730 `eno2` (spare) → new bridge `vmbr2` → pfSense `net3`
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2026-07-03 08:37:15 +00:00
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(vtnet3), untagged end-to-end. The new TL-SG105PE PoE switch is a **dedicated
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CCTV island**: camera in a PoE port, one port patched to eno2, no VLAN table
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at all, mgmt IP inside the segment (10.0.30.6 via Kea). The existing garage
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TL-SG105E (192.168.1.6 — apartment uplink, R730 LAN1, 4G router 192.168.1.7,
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UPS mgmt; exactly one free port) is untouched — it has no PoE and no spare
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port pair, which is also why the two roles cannot share one switch.
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Cameras are untrusted: default-deny on dCCTV with a single
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2026-07-02 20:01:45 +00:00
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NTP-to-gateway exception; Frigate (k8s) pulls RTSP in; ha-sofia (192.168.1.8)
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may reach ISAPI/RTSP directly; home-LAN clients route in via an AX6000 static
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route (10.0.30.0/24 via 192.168.1.2). 10.0.30.0/24 is deliberately NOT in the
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10.0.20.0/22 trusted source-IP allowlist.
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## Considered options
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- **802.1Q tag over the existing LAN path (eno1/vmbr0)** — rejected: vmbr0 is
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vlan-aware with `bridge-vids 2-4094`, so ANY device on the home LAN could
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inject tagged frames straight into the camera segment (defeats the
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cable-tap threat model); tag-passing through the unmanaged SW1 is
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undefined; and it reconfigures the live bridge carrying the host IP and
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pfSense WAN.
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- **AX6000 as the camera gateway** — rejected earlier in the design (consumer
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router, no inter-VLAN firewall).
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## Consequences
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- eno2 is consumed; eno3/eno4 remain the last spare NICs on the R730.
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2026-07-03 08:37:15 +00:00
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- Two Easy Smart switches live in the rack: the OLD TL-SG105E at 192.168.1.6
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remains the load-bearing shared one (apartment uplink, R730 LAN1, pfSense's
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backup-WAN path via the 4G router, UPS mgmt — one port free); the NEW
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TL-SG105PE carries only CCTV. The Easy Smart mgmt-answers-on-every-port
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quirk is therefore contained: the PE's mgmt UI is only L2-adjacent to
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cameras, and pfSense still gates all L3.
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- Adding a future camera = one free PoE port on the PE + a Kea
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reservation; no pfSense/PVE/VLAN work.
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- 2026-07-02 correction: an earlier revision of this ADR described ONE shared
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PE switch with a port-based VLAN split — written before discovering the
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live 192.168.1.6 device is a separate, older non-PoE TL-SG105E. No VLAN
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table exists anywhere in the final design.
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2026-07-02 20:01:45 +00:00
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- Frigate's ADR-0016 VRAM budget was bumped 2000 → 2300 MiB for the extra
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NVDEC stream.
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