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Home Network Topology - Bypass Router

#network#openwrt#旁路由#NAT179
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This post is translated from Chinese into English through AI.View Original
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This post discusses the network topology of a home network using a bypass route. The author explains the configuration of the main router and the bypass router, as well as how to connect devices to the network. The author also suggests an alternative configuration for special cases.

Home network topology is very important. Every family has their own ideas, and there is no best topology, only the one that suits your own use. The bypass route topology I am currently using is more suitable for home network devices that do not need to go through the bypass route by default, but only for individual devices that need to go through the bypass route.

Network Topology Diagram#

Bypass Route Network Topology.excalidraw.png

Interpretation#

  1. Access the Internet by bridging the optical modem.
  2. The main router TP-link dials and is responsible for wireless network and wired network functions.
  3. The bypass route N1 is responsible for DNS, ad blocking, and other applications.
  4. Guests connect to the Wi-Fi and directly obtain IP addresses from the main router via DHCP.
  5. Personal devices manually connect to the bypass route for internet access.

Configuration#

Main Router TP-Link Configuration#

  1. LAN Port Settings
    1. LAN Port IP Settings: Manual
    2. IP Address: 192.168.0.1
    3. Subnet Mask: 255.255.255.0
  2. DHCP Settings
    1. DHCP Server: On
    2. Starting IP Address: 192.168.0.2
    3. Ending IP Address: 192.168.0.254
    4. Gateway: 192.168.0.1
    5. Preferred DNS: 192.168.0.1
    6. dhcp.png

Bypass Route N1 Configuration#

  1. Interface-LAN Configuration
    1. Protocol: Static Protocol
    2. IP Address: 192.168.0.2
    3. Subnet Mask: 255.255.255.0
    4. Gateway: 192.168.0.1 (Here, it should point to the IP address of the main router)
    5. DNS Service: 192.168.0.1
    6. DHCP Service: Ignore this interface
    7. n1.png

Device Networking#

Devices that do not need to go through the bypass route#

  1. Simply connect to Wi-Fi or wired network.

Devices that need to go through the bypass route#

  1. Manually configure the network settings
    1. IP: 192.168.0.101 (must be unique)
    2. Subnet Mask: 255.255.255.0
    3. Gateway: 192.168.0.2 (manually point to the bypass route device)
    4. DNS Server: 192.168.0.2

Enjoy!#

The current network topology is relatively ideal and does not affect normal use, while also considering some special situations.
If there are more special situations, you can adopt the reverse approach.

  • Disable the DHCP server on the main router and let the bypass route enable the DHCP service to assign IP addresses.
  • At the same time, enable the DHCP server. Some bypass routers can directly assign IP addresses. The advantage of this approach is that even if the bypass route goes offline, the main router can quickly take over the DHCP server without affecting normal use. However, my TP-link does not support this situation.
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