I think the network remains the same because that both Lan and Wifi connect to the same gateway. The routing table of my laptop which connects to both Lan and Wifi is: ``` Internet: Destination Gateway Flags Refs Use Netif Expire default 10.238.24.1 UGSc 113 0 en9 default 10.238.24.1 UGScI 2 0 en0 10.238.24/21 link#8 UCS 3 0 en9 ! 10.238.24/21 link#11 UCSI 2 0 en0 ! 10.238.24.1/32 link#8 UCS 4 0 en9 ! 10.238.24.1 0:59:dc:a2:ee:51 UHLWIir 27 6 en9 1194 10.238.24.1 0:59:dc:a2:ee:51 UHLWIr 0 0 en0 1195 10.238.24.1/32 link#11 UCSI 2 0 en0 ! 10.238.28.171/32 link#8 UCS 0 0 en9 ! 10.238.28.222/32 link#11 UCS 0 0 en0 ! 10.238.30.17 b0:19:c6:b4:70:5d UHLWI 0 1 en9 1197 10.238.30.17 b0:19:c6:b4:70:5d UHLWI 0 1 en0 1197 127 127.0.0.1 UCS 0 0 lo0 127.0.0.1 127.0.0.1 UH 1 4821145 lo0 169.254 link#8 UCS 1 0 en9 ! 169.254 link#11 UCSI 0 0 en0 ! 224.0.0/4 link#8 UmCS 2 0 en9 ! 224.0.0/4 link#11 UmCSI 2 0 en0 ! 224.0.0.251 1:0:5e:0:0:fb UHmLWI 0 0 en9 224.0.0.251 1:0:5e:0:0:fb UHmLWI 0 0 en0 239.255.255.250 1:0:5e:7f:ff:fa UHmLWI 0 80 en9 239.255.255.250 1:0:5e:7f:ff:fa UHmLWI 0 4 en0 255.255.255.255/32 link#8 UCS 0 0 en9 ! 255.255.255.255/32 link#11 UCSI 0 0 en0 ! ``` On MacOS, the network id is calculated based on the MAC address of the default gateway, so if both Lan and Wifi network are connected to the same gateway (like the table above), the network id remains the same. :bsurd, could you try to run the command `netstat -nr` when connecting to Lan and Wifi to see what the output is? Thanks.
Bug 1584165 Comment 1 Edit History
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I think the network id remains the same because that both Lan and Wifi connect to the same gateway. The routing table of my laptop which connects to both Lan and Wifi is: ``` Internet: Destination Gateway Flags Refs Use Netif Expire default 10.238.24.1 UGSc 113 0 en9 default 10.238.24.1 UGScI 2 0 en0 10.238.24/21 link#8 UCS 3 0 en9 ! 10.238.24/21 link#11 UCSI 2 0 en0 ! 10.238.24.1/32 link#8 UCS 4 0 en9 ! 10.238.24.1 0:59:dc:a2:ee:51 UHLWIir 27 6 en9 1194 10.238.24.1 0:59:dc:a2:ee:51 UHLWIr 0 0 en0 1195 10.238.24.1/32 link#11 UCSI 2 0 en0 ! 10.238.28.171/32 link#8 UCS 0 0 en9 ! 10.238.28.222/32 link#11 UCS 0 0 en0 ! 10.238.30.17 b0:19:c6:b4:70:5d UHLWI 0 1 en9 1197 10.238.30.17 b0:19:c6:b4:70:5d UHLWI 0 1 en0 1197 127 127.0.0.1 UCS 0 0 lo0 127.0.0.1 127.0.0.1 UH 1 4821145 lo0 169.254 link#8 UCS 1 0 en9 ! 169.254 link#11 UCSI 0 0 en0 ! 224.0.0/4 link#8 UmCS 2 0 en9 ! 224.0.0/4 link#11 UmCSI 2 0 en0 ! 224.0.0.251 1:0:5e:0:0:fb UHmLWI 0 0 en9 224.0.0.251 1:0:5e:0:0:fb UHmLWI 0 0 en0 239.255.255.250 1:0:5e:7f:ff:fa UHmLWI 0 80 en9 239.255.255.250 1:0:5e:7f:ff:fa UHmLWI 0 4 en0 255.255.255.255/32 link#8 UCS 0 0 en9 ! 255.255.255.255/32 link#11 UCSI 0 0 en0 ! ``` On MacOS, the network id is calculated based on the MAC address of the default gateway, so if both Lan and Wifi network are connected to the same gateway (like the table above), the network id remains the same. :bsurd, could you try to run the command `netstat -nr` when connecting to Lan and Wifi to see what the output is? Thanks.