Hello guys, I update my system (Archlinux) the last week and was travel for new year, and now I have issues with the access to internet, I mean when I turn on the PC, first time after update.
I´ll explain: when open Firefox, can´t access to many pages (example: duckduckgo no, google yes) I have no idea why. My Jdownloader2 not work (show a connection fail, as if should be offline); is similar with the torrent (Transmission), I can open it but not download. Also RStudio show a connection problem.
I want to be clear in this point: I have internet, I mean the wifi work and some pages with mozilla (perhaps 2 or 3, ja ja) too. But this programs no, and the internet pages no.

The ping output:

[rodrigo@arch ~]$ ping google.com
PING google.com (2800:3f0:4002:803::200e (2800:3f0:4002:803::200e)) 56 data bytes
64 bytes from 2800:3f0:4002:803::200e (2800:3f0:4002:803::200e): icmp_seq=1 ttl=55 time=25.2 ms
64 bytes from 2800:3f0:4002:803::200e (2800:3f0:4002:803::200e): icmp_seq=2 ttl=55 time=32.7 ms
64 bytes from 2800:3f0:4002:803::200e (2800:3f0:4002:803::200e): icmp_seq=3 ttl=55 time=25.7 ms
64 bytes from 2800:3f0:4002:803::200e (2800:3f0:4002:803::200e): icmp_seq=4 ttl=55 time=23.8 ms
64 bytes from 2800:3f0:4002:803::200e (2800:3f0:4002:803::200e): icmp_seq=5 ttl=55 time=22.1 ms
--- google.com ping statistics ---
5 packets transmitted, 5 received, 0% packet loss, time 4007ms
rtt min/avg/max/mdev = 22.107/25.901/32.733/3.633 ms
[rodrigo@arch ~]$ ping duckduckgo.com
ping: connect: La red es inaccesible

I´m not using a firewall (only the iptables with the default settings).

I was looking some post but the problem is different, they usually haven´t connection after update, so it was not usefull.

Thank you, and happy 2020 for all.

Ruy

dig -t AAAA duckduckgo.com shows that duckduckgo.com has no IPv6 address. Your computer seems to only have IPv6, thus it can't reach it.

Check your network configuration. The Archlinux wiki is of legendary quality; start there.

Sorry for unsolicited advice, but in my opinion you should not use Archlinux as a newbie (been there, done that, broke my backup server).

Hello berndbausch, thanks for the fast reply.

The advice is always welcome and gratefully accepted. You are right in this point, Arch is complex, but is the best distro I ever used and I love it.

If I understand right you´re telling me that my connection is only with IPv6 (not with IPv4), I was looking in the wiki but can´t find anything usefull. I mean, check the connection with the steps and I can´t find nothing wrong.

I´m using NetworkManager for the configuration and the connection is via wifi.

Tell me if you need some output.

Thank you.

What do you get when running ip address? And when you ping 1.1.1.1?

Unfortunately, I don't use Archlinux and don't know how networking is set up on that distro.

Hi berndbausch, the outputs are:




[rodrigo@arch ~]$ ip address

1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1000

link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00

inet 127.0.0.1/8 scope host lo

valid_lft forever preferred_lft forever

inet6 ::1/128 scope host

valid_lft forever preferred_lft forever

2: enp1s0: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc mq state DOWN group default qlen 1000

link/ether 88:ae:1d:8a:b2:35 brd ff:ff:ff:ff:ff:ff

3: wlp2s0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP group default qlen 1000

link/ether c4:46:19:9e:9c:bf brd ff:ff:ff:ff:ff:ff

inet6 2800:560:18:1d26:e127:a0f:a1d3:d9ad/64 scope global dynamic noprefixroute

valid_lft 3599sec preferred_lft 3599sec

inet6 fe80::73ac:23b2:2f69:9213/64 scope link noprefixroute

valid_lft forever preferred_lft forever




[rodrigo@arch ~]$ ping 1.1.1.1
ping: connect: La red es inaccesible


Thank you

Well, as I guessed, you have no IPv4 addresses configured.
Your wired interface enp1s0 doesn't seem to be connected (it is down).
Your wireless interface wlp2s0 has an IPv6 address, 2800:560:18:1d26:e127:a0f:a1d3:d9ad. Since you have no IPv4 address, you can't reach other IPv4 addresses.

Your task is to find out how to configure IPv4 addresses on your PC. I suppose https://wiki.archlinux.org/index.php..._configuration is a good start.

I've had this exact problem.
https://bbs.archlinux.org/viewtopic.php?id=214176

Hello guys, thanks for the answers. The problem was solve, I sorry but I can't explain how.

The steps who carry me to the solution was:

1. Upload the system.
2. Run dhcpd in the console.

It works fine.

I was testing the pc for 4 days and everything works.

Thank you.