All Questions
10 questions
0votes
0answers
224views
USB error: " ERROR Transfer event TRB DMA ptr not part of current TD ep_index 4 comp_code 1"
I'm a beginner to Ubuntu and have been struggling with this issue for a few days. Basically, I am trying to record with an Orbbec Femto Bolt camera, but when I try to actually use the camera, it doesn'...
4votes
1answer
3kviews
Interface groups
I started to study Linux networking system (especially Ubuntu) lately. I got interface info by command ip a like this: 1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group ...
- 43
1vote
0answers
812views
Ubuntu 20.04 problems with interface after installation
I have just installed Ubuntu 20.04 Focal Fossa. After the restart, I found a particular problem with the interface (see figure attached). I'm a beginner in the use of Ubuntu, I have managed to work ...
1vote
0answers
99views
How can I switch dinamically the output interface in a router depending on input interface?
I have an Ubuntu 18.04 acting as router with 3 interfaces. Two of them end up in the same device (they are used as dual path since depending on the situation one of the paths can be down or viceversa)....
0votes
2answers
2kviews
Send packet on one interface and receive it on another one for testing purposes
I would like to test the DHCP client that I wrote on Ubuntu 16.04.6 LTS. I would like to do it locally on my laptop i.e. send and receive DHCP packets inside. Here is what I tried: created two dummy ...
-1votes
1answer
11kviews
eth: error fetching interface information: Device not found
I have an ubuntu 18.04 linux server. Why does the command(ifconfig eth) says Device not found whereas this command(ifconfig eth0) works? $ ifconfig eth eth: error fetching interface information: ...
- 373
11votes
1answer
6kviews
What does "if1@if2" mean in interface name in output of "ip address" command on Ubuntu
What does at sign (@) mean in interface name in output of "ip address" command (or the "ip link" command) on Ubuntu, for example interface name "eth0@if44" in the following output: root@aafa1fc24a0b:/...
3votes
1answer
4kviews
network interfaces rename not working as expected. Where to look?
System is Ubuntu 16.10. It has been updated quite some times, so it might have some remaining stuff from earlier versions in there (at least back till 14.04, probably much longer). The issue it the ...
- 31
0votes
2answers
173views
Ubuntu 15.10 Networking Problems
I recently deployed a VM with Ubuntu 15.10 and I am having trouble configuring the network properly. Note: When the OS was installed, it picked up an IP (from DHCP I guess), because it didn't ask me ...
4votes
1answer
9kviews
Ubuntu 14.04 server: Change em1 to eth0 - no /etc/udev/rules.d/70-persistent-net.rules file
I am trying to rename one of my network interfaces from em1 to eth0. I do not have /etc/udev/rules.d/70-persistent-net.rules. I have tried to regenerate this file by running these commands: udevadm ...
