7i76e - ping test
14 Jul 2021 23:30 - 14 Jul 2021 23:34 #214785
by kelargo
7i76e - ping test was created by kelargo
Hello,
My 7i76e arrived today and I am exploring how it works. I have two NICs in my linuxcnc machine. I changed the IP on the 7i76e to 10.10.10.121 because I have 192.168.1.x in my home network. I can ping the 7i76e. but it seems to not respond when I actually run linuxcnc.
Once linuxcnc loads the config, pinging stops responding. When I exit linuxcnc, successful pings resume.
[/code][/code][/code][/code][/code]
My 7i76e arrived today and I am exploring how it works. I have two NICs in my linuxcnc machine. I changed the IP on the 7i76e to 10.10.10.121 because I have 192.168.1.x in my home network. I can ping the 7i76e. but it seems to not respond when I actually run linuxcnc.
Once linuxcnc loads the config, pinging stops responding. When I exit linuxcnc, successful pings resume.
[code]64 bytes from 10.10.10.121: icmp_seq=17 ttl=64 time=0.111 ms
64 bytes from 10.10.10.121: icmp_seq=18 ttl=64 time=0.087 ms
ping: sendmsg: Operation not permitted
ping: sendmsg: Operation not permitted
Also, I'm running tcpdump, and I can see packets between my linuxcnc machine and the 7i76e.
So, I am thinking this is normal behavior?
[code][code] 10.10.10.1.44678 > 10.10.10.121.27181: [udp sum ok] UDP, length 64
19:25:54.265637 IP (tos 0x0, ttl 64, id 0, offset 0, flags [DF], proto UDP (17), length 110)
10.10.10.121.27181 > 10.10.10.1.44678: [no cksum] UDP, length 82
19:25:54.265693 IP (tos 0x0, ttl 64, id 45004, offset 0, flags [DF], proto UDP (17), length 116)
10.10.10.1.44678 > 10.10.10.121.27181: [udp sum ok] UDP, length 88
19:25:54.266542 IP (tos 0x0, ttl 64, id 45005, offset 0, flags [DF], proto UDP (17), length 92)
10.10.10.1.44678 > 10.10.10.121.27181: [udp sum ok] UDP, length 64
19:25:54.266640 IP (tos 0x0, ttl 64, id 0, offset 0, flags [DF], proto UDP (17), length 110)
10.10.10.121.27181 > 10.10.10.1.44678: [no cksum] UDP, length 82
19:25:54.266689 IP (tos 0x0, ttl 64, id 45006, offset 0, flags [DF], proto UDP (17), length 116)
FYI, my interfaces file:
[code][code] cat /etc/network/interfaces
# This file describes the network interfaces available on your system
# and how to activate them. For more information, see interfaces(5).
source /etc/network/interfaces.d/*
# The loopback network interface
auto lo
iface lo inet loopback
# The primary network interface
allow-hotplug enp10s0
# motherboard interface
auto enp10s0
iface enp10s0 inet static
address 192.168.0.116/24
gateway 192.168.0.1
# PCI interface to MESA controller 7I76E
auto enp6s0
iface enp6s0 inet static
address 10.10.10.1/24
# default IP
# address 192.168.1.1/24
Last edit: 14 Jul 2021 23:34 by kelargo. Reason: typo
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14 Jul 2021 23:35 #214786
by PCW
Replied by PCW on topic 7i76e - ping test
That's correct, LinuxCNC has exclusive access to the card when runningOnce linuxcnc loads the config, pinging stops responding. When I exit linuxcnc, successful pings resume.
The following user(s) said Thank You: kelargo
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14 Jul 2021 23:36 #214787
by kelargo
Replied by kelargo on topic 7i76e - ping test
thank you for clarifying. Apologize for the weird formatting.
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