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How to set up simple static Ethernet connection?

rated 0 times [ 1] [ 0] / answers: 1 / hits: 1111 / 1 Year ago, fri, april 21, 2023, 11:16:05

System A has Wi-Fi Internet access and an Ethernet port, while System B has just an Ethernet port. I connected the ports directly to each other. Both are fairly modern desktop PCs running Ubuntu 10.04.

On A I ran:

$ sudo ip addr add 192.168.0.1/24 dev eth0



$ ip route

10.66.225.0/24 dev ra0  proto kernel  scope link  src 10.66.225.153  metric 2 

192.168.0.0/24 dev eth0  proto kernel  scope link  src 192.168.0.1 

169.254.0.0/16 dev ra0  scope link  metric 1000 

default via 10.66.225.1 dev ra0  proto static

On B I ran:

$ sudo ip addr add 192.168.0.2/24 dev eth0

However, when I now try to ping 192.168.0.2 from .1, I get:

$ ping 192.168.0.2

PING 192.168.0.2 (192.168.0.2) 56(84) bytes of data.

From 192.168.0.1 icmp_seq=1 Destination Port Unreachable

From 192.168.0.1 icmp_seq=2 Destination Port Unreachable

Any hints? TIA.

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brasiplacar

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3 Years ago

answered 1 Year ago mocipe · Accepted Answer

Try using an Ethernet hub or switch to connect the two machines. If the machines are old then you can't use a conventional UTP cable to connect them. (You can use a crossover cable.) Even if the machines are new and are equipped with Auto-MDIX, what can happen is that both machines have their Ethernet ports switched off and niether one will switch its port on until connected to a peer with an enabled port.