Ultra 7 Cabling Ips
Raising the DHCP start range to 192.168.4.50 ensures room for static IPs.
Fixed IP Assignments & DHCP Configuration.
Fixed IP Assignments
|
Device
|
Interface
|
Assigned IP (Static)
|
Purpose
|
|
Ultra LAN
|
Serves DHCP
|
192.168.4.1
|
Default gateway for LAN devices
|
|
Tplink LAN
|
Management Access
|
192.168.4.2
|
Ensures access when DHCP is off
|
|
Stick PC
|
LAN (Manual IP)
|
192.168.4.3
|
Ensures access in all conditions
|
|
CCTV System
|
LAN (Static)
|
192.168.4.10
|
Security system, always accessible
|
|
Home Automation Hub
|
LAN (Static)
|
192.168.4.11
|
Smart home control, avoid IP conflicts
|
|
Doorbell
|
LAN (Static)
|
192.168.4.12
|
Smart doorbell for remote access
|
DHCP Configuration
|
Router
|
DHCP Start
|
DHCP End
|
Subnet
|
Notes
|
|
Ultra
|
192.168.4.50
|
192.168.4.200
|
255.255.255.0
|
Primary DHCP Server
|
|
Tplink
|
192.168.4.50
|
192.168.4.200
|
255.255.255.0
|
Disabled by default, enabled only if Ultra fails
|
Why This Setup?
- All critical devices have fixed IPs below 192.168.4.50.
- Prevents conflicts when switching between Ultra & Tplink.
- DHCP clients get addresses dynamically from 192.168.4.50 onward.
- Tplink DHCP remains disabled unless Ultra is down.
Cable Connections & Actions
|
Device
|
Port Used
|
Connected To
|
Purpose
|
|
Swish Router
|
LAN Port 1
|
5-Port Switch Port 5
|
Connects Ultra & Tplink to Fibre Internet (OLD CABLE — Action 1)
|
|
|
|
|
|
|
5-Port Switch
|
Port 1
|
Ultra WAN Port
|
Provides Ultra with internet (NEW SHORT CABLE - Action 2)
|
|
5-Port Switch
|
Port 2
|
Tplink WAN Port
|
Provides Tplink with internet (NEW SHORT CABLE - Action 3)
|
|
Ultra
|
LAN Port 1
|
24-Port Switch
|
Main LAN Network (OLD CABLE - No Action)
|
|
Tplink
|
LAN Port 1
|
Ultra WAN2 (Failover)
|
Ultra uses Tplink if Swish fails (OLD CABLE - No Action)
|
|
Tplink
|
LAN Port 2
|
24-Port Switch
|
Tplink provides LAN when active (NEW CABLE - Action 4)
|
|
Stick PC
|
LAN Port
|
24-Port Switch
|
Allows wired access to both routers (OLD CABLE - No Action)
|
Action Steps
- Move the existing Ultra WAN cable from Swish to the 2-Port Switch Port 1.
- Connect a new short cable from Ultra WAN Port to 2-Port Switch Port 2.
- Connect a new short cable from Tplink WAN Port to 2-Port Switch Port 3.
- Connect a new cable from Tplink LAN Port 2 to the 24-Port Switch.
August 25, 2025
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