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--- packet:new-packet_radio_3_0 [2026/04/16 07:25] – [Dec 2025 Firmware Commands] m0ahn
+++ packet:new-packet_radio_3_0 [2026/05/19 21:36] (current) – [Additional Points to Note] 2e0hkd
@@ Line 51: / Line 51: @@
   - You always telnet to the modem_IP, which counter-intuitively does not have to be unique on the network. In the default configuration, you would use 192.168.0.253 on all modems when connecting via telnet
+On windows you can set MTU in an admin command prompt with ''netsh interface ipv4 show interfaces'' to get the interface name, and ''netsh interface ipv4 set subinterface "Ethernet 3" mtu=750 store=persistent'' to set it.
+On linux MTU can be set temporarily with ''sudo ip link set dev eth0 mtu 750'', to persist after reboot depends on how you manage network settings (systemd, /etc/network/interfaces, NetworkManager etc.), but for example with NetworkManager you can do something like:
+<code>
+sudo nmcli connection show
+sudo nmcli connection modify "Wired connection 1" 802-3-ethernet.mtu 750
+sudo nmcli connection show "Wired connection 1" | grep mtu  # verify
+</code>
 ===== NPR 3.0: Upgrading Firmware =====