Timeline for 2 computers connected with crossover cable cannot ping each other: linux
Current License: CC BY-SA 3.0
11 events
| when toggle format | what | by | license | comment | |
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| May 12, 2017 at 9:29 | vote | accept | r0berts | ||
| Apr 8, 2017 at 8:35 | answer | added | r0berts | timeline score: 1 | |
| Apr 8, 2017 at 7:52 | history | edited | r0berts | CC BY-SA 3.0 |
added 86 characters in body
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| Apr 6, 2017 at 9:51 | history | edited | r0berts | CC BY-SA 3.0 |
updated information
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| Apr 5, 2017 at 6:52 | comment | added | r0berts |
Thanks for all comments; I will post more info as soon as I get to work. I will also load up Wireshark on the laptop and see what useful information that adds. netmask is same both ends 255.255.255.0. Ethernet standard is 10/100. IP is static on both; laptop has nm, on PC I run netctl to set address.
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| Apr 5, 2017 at 1:10 | comment | added | MaQleod | definitely check netmask. Ping requires that an ARP conversation happens first. ARP requires that both machines be in the same network, which is defined by netmask. If you're getting Host Unreachable it is likely that the ARP conversation is failing. Check ARP table for the other machine's IP and see if there is an entry. | |
| Apr 4, 2017 at 19:15 | comment | added | grawity_u1686 |
Is this Gigabit Ethernet? What does ethtool eth0 show on both ends?
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| Apr 4, 2017 at 18:12 | comment | added | harrymc | The two computers need to have static IP addresses. | |
| Apr 4, 2017 at 17:20 | comment | added | MariusMatutiae | Please post the routing tables of both pcs, ip route show. | |
| Apr 4, 2017 at 17:19 | comment | added | Steven |
Some checks: First, does the workstation have a netmask 255.255.255.0? Second, does either computer have two Ethernet ports (maybe you enabled the wrong device)? Third, can each computer ping itself? Finally, is there any chance you have a software firewall (likely iptables) enabled on either computer?
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| Apr 4, 2017 at 17:02 | history | asked | r0berts | CC BY-SA 3.0 |