Network is unreachable when booting new instance #1866
Description
I have the same problem in the same context as #1088
I just installed snapcraft on an ubuntu 20.10 which installs multipass 1.5.0 automatically.
After this, networking does not work in the snapcraft VM or in a test VM.
$ multipass launch --name test
Launched: test
$ multipass shell test
Welcome to Ubuntu 20.04.1 LTS (GNU/Linux 5.4.0-54-generic x86_64)
* Documentation: https://help.ubuntu.com
* Management: https://landscape.canonical.com
* Support: https://ubuntu.com/advantage
System information as of Mon Nov 30 18:39:31 CET 2020
System load: 0.01 Processes: 99
Usage of /: 26.4% of 4.67GB Users logged in: 0
Memory usage: 18% IPv4 address for ens4: 10.51.155.132
Swap usage: 0%
1 update can be installed immediately.
0 of these updates are security updates.
To see these additional updates run: apt list --upgradable
Failed to connect to https://changelogs.ubuntu.com/meta-release-lts. Check your Internet connection or proxy settings
Last login: Mon Nov 30 18:36:04 2020 from 10.51.155.1
ubuntu@test:~$ sudo apt-get update
Err:1 http://archive.ubuntu.com/ubuntu focal InRelease
Cannot initiate the connection to archive.ubuntu.com:80 (2001:67c:1360:8001::23). - connect (101: Network is unreachable) Cannot initiate the connection to archive.ubuntu.com:80 (2001:67c:1360:8001::24). - connect (101: Network is unreachable) Could not connect to archive.ubuntu.com:80 (91.189.88.142), connection timed out Could not connect to archive.ubuntu.com:80 (91.189.88.152), connection timed out
Err:2 http://archive.ubuntu.com/ubuntu focal-updates InRelease
Cannot initiate the connection to archive.ubuntu.com:80 (2001:67c:1360:8001::23). - connect (101: Network is unreachable) Cannot initiate the connection to archive.ubuntu.com:80 (2001:67c:1360:8001::24). - connect (101: Network is unreachable)
Err:3 http://archive.ubuntu.com/ubuntu focal-backports InRelease
Cannot initiate the connection to archive.ubuntu.com:80 (2001:67c:1360:8001::23). - connect (101: Network is unreachable) Cannot initiate the connection to archive.ubuntu.com:80 (2001:67c:1360:8001::24). - connect (101: Network is unreachable)
Err:4 http://security.ubuntu.com/ubuntu focal-security InRelease
Cannot initiate the connection to security.ubuntu.com:80 (2001:67c:1360:8001::23). - connect (101: Network is unreachable) Cannot initiate the connection to security.ubuntu.com:80 (2001:67c:1360:8001::24). - connect (101: Network is unreachable) Cannot initiate the connection to security.ubuntu.com:80 (2001:67c:1562::15). - connect (101: Network is unreachable) Cannot initiate the connection to security.ubuntu.com:80 (2001:67c:1562::18). - connect (101: Network is unreachable) Could not connect to security.ubuntu.com:80 (91.189.91.39), connection timed out Could not connect to security.ubuntu.com:80 (91.189.88.152), connection timed out Could not connect to security.ubuntu.com:80 (91.189.91.38), connection timed out Could not connect to security.ubuntu.com:80 (91.189.88.142), connection timed out
Reading package lists... Done
W: Failed to fetch http://archive.ubuntu.com/ubuntu/dists/focal/InRelease Cannot initiate the connection to archive.ubuntu.com:80 (2001:67c:1360:8001::23). - connect (101: Network is unreachable) Cannot initiate the connection to archive.ubuntu.com:80 (2001:67c:1360:8001::24). - connect (101: Network is unreachable) Could not connect to archive.ubuntu.com:80 (91.189.88.142), connection timed out Could not connect to archive.ubuntu.com:80 (91.189.88.152), connection timed out
W: Failed to fetch http://archive.ubuntu.com/ubuntu/dists/focal-updates/InRelease Cannot initiate the connection to archive.ubuntu.com:80 (2001:67c:1360:8001::23). - connect (101: Network is unreachable) Cannot initiate the connection to archive.ubuntu.com:80 (2001:67c:1360:8001::24). - connect (101: Network is unreachable)
W: Failed to fetch http://archive.ubuntu.com/ubuntu/dists/focal-backports/InRelease Cannot initiate the connection to archive.ubuntu.com:80 (2001:67c:1360:8001::23). - connect (101: Network is unreachable) Cannot initiate the connection to archive.ubuntu.com:80 (2001:67c:1360:8001::24). - connect (101: Network is unreachable)
W: Failed to fetch http://security.ubuntu.com/ubuntu/dists/focal-security/InRelease Cannot initiate the connection to security.ubuntu.com:80 (2001:67c:1360:8001::23). - connect (101: Network is unreachable) Cannot initiate the connection to security.ubuntu.com:80 (2001:67c:1360:8001::24). - connect (101: Network is unreachable) Cannot initiate the connection to security.ubuntu.com:80 (2001:67c:1562::15). - connect (101: Network is unreachable) Cannot initiate the connection to security.ubuntu.com:80 (2001:67c:1562::18). - connect (101: Network is unreachable) Could not connect to security.ubuntu.com:80 (91.189.91.39), connection timed out Could not connect to security.ubuntu.com:80 (91.189.88.152), connection timed out Could not connect to security.ubuntu.com:80 (91.189.91.38), connection timed out Could not connect to security.ubuntu.com:80 (91.189.88.142), connection timed out
W: Some index files failed to download. They have been ignored, or old ones used instead.
ubuntu@test:~$
Here are the iptables:
sudo iptables-legacy -S
-P INPUT ACCEPT
-P FORWARD ACCEPT
-P OUTPUT ACCEPT
-A INPUT -i mpqemubr0 -p tcp -m tcp --dport 53 -m comment --comment "generated for Multipass network mpqemubr0" -j ACCEPT
-A INPUT -i mpqemubr0 -p udp -m udp --dport 53 -m comment --comment "generated for Multipass network mpqemubr0" -j ACCEPT
-A INPUT -i mpqemubr0 -p udp -m udp --dport 67 -m comment --comment "generated for Multipass network mpqemubr0" -j ACCEPT
-A FORWARD -i mpqemubr0 -o mpqemubr0 -m comment --comment "generated for Multipass network mpqemubr0" -j ACCEPT
-A FORWARD -s 10.51.155.0/24 -i mpqemubr0 -m comment --comment "generated for Multipass network mpqemubr0" -j ACCEPT
-A FORWARD -d 10.51.155.0/24 -o mpqemubr0 -m conntrack --ctstate RELATED,ESTABLISHED -m comment --comment "generated for Multipass network mpqemubr0" -j ACCEPT
-A FORWARD -i mpqemubr0 -m comment --comment "generated for Multipass network mpqemubr0" -j REJECT --reject-with icmp-port-unreachable
-A FORWARD -o mpqemubr0 -m comment --comment "generated for Multipass network mpqemubr0" -j REJECT --reject-with icmp-port-unreachable
-A OUTPUT -o mpqemubr0 -p tcp -m tcp --sport 53 -m comment --comment "generated for Multipass network mpqemubr0" -j ACCEPT
-A OUTPUT -o mpqemubr0 -p udp -m udp --sport 53 -m comment --comment "generated for Multipass network mpqemubr0" -j ACCEPT
-A OUTPUT -o mpqemubr0 -p udp -m udp --sport 67 -m comment --comment "generated for Multipass network mpqemubr0" -j ACCEPT
I even tried removing the 2 Reject Rules as mentioned in the previous ticket but the problem persists:
$ sudo iptables -D FORWARD -o mpqemubr0 -m comment --comment "generated for Multipass network mpqemubr0" -j REJECT --reject-with icmp-port-unreachable
$ sudo iptables -D FORWARD -i mpqemubr0 -m comment --comment "generated for Multipass network mpqemubr0" -j REJECT --reject-with icmp-port-unreachable
Has the fix above actually been released?