$ lsb_release -a
No LSB modules are available.
Distributor ID: Pop
Description: Pop!_OS 22.04 LTS
Release: 22.04
Codename: jammy
일요일까지 인터넷에 연결할 수 없었습니다. 월요일에 인터넷에 연결할 수 없었습니다. 내 컴퓨터에는 아무런 변화가 없습니다. 내가 한 유일한 일은 sudo apt-get update다운로드가 많지 않았다는 것입니다. 내가 기억하는 한, 다운로드한 데이터는 몇 kb에 불과했습니다.
내 노트북을 제외하고 집에 있는 모든 전화기는 Wi-Fi를 통해 인터넷에 연결할 수 있습니다. WiFi를 선택하면 처음에는 연결된 것처럼 보이다가 WiFi 아이콘에 물음표(?)가 나타납니다. 또한 노트북과 모바일 인터넷을 공유하면 모든 것이 잘 작동합니다.
가장 이상한 점은 다른 집에서도 인터넷이 연결된다는 점이다.
$ ip link
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN mode DEFAULT group default qlen 1000
link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
2: enp47s0: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc fq_codel state DOWN mode DEFAULT group default qlen 1000
link/ether d8:bb:c1:b1:1d:c1 brd ff:ff:ff:ff:ff:ff
3: wlo1: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP mode DORMANT group default qlen 1000
link/ether c4:bd:e5:23:9c:9a brd ff:ff:ff:ff:ff:ff
altname wlp0s20f3
4: docker0: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc noqueue state DOWN mode DEFAULT group default
link/ether 02:42:aa:aa:8b:28 brd ff:ff:ff:ff:ff:ff
5: br-a593dce43362: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc noqueue state DOWN mode DEFAULT group default
link/ether 02:42:84:e4:1e:5d brd ff:ff:ff:ff:ff:ff
6: br-c77e5c8b1ce6: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc noqueue state DOWN mode DEFAULT group default
link/ether 02:42:dd:ac:10:97 brd ff:ff:ff:ff:ff:ff
7: br-c8d5ce7ce6c1: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc noqueue state DOWN mode DEFAULT group default
link/ether 02:42:23:b0:8b:d6 brd ff:ff:ff:ff:ff:ff
8: br-f2e659a6d01a: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc noqueue state DOWN mode DEFAULT group default
link/ether 02:42:42:33:b3:08 brd ff:ff:ff:ff:ff:ff
9: br-fd59d8ed402b: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc noqueue state DOWN mode DEFAULT group default
link/ether 02:42:0a:00:a2:96 brd ff:ff:ff:ff:ff:ff
10: br-35b3c8def3c9: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc noqueue state DOWN mode DEFAULT group default
link/ether 02:42:be:6f:12:8f brd ff:ff:ff:ff:ff:ff
11: br-3a165a5c993a: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc noqueue state DOWN mode DEFAULT group default
link/ether 02:42:eb:5e:ba:28 brd ff:ff:ff:ff:ff:ff
12: br-4d363be4b599: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc noqueue state DOWN mode DEFAULT group default
link/ether 02:42:32:57:dd:21 brd ff:ff:ff:ff:ff:ff
13: br-4e168a0cdf31: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc noqueue state DOWN mode DEFAULT group default
link/ether 02:42:81:00:13:f0 brd ff:ff:ff:ff:ff:ff
14: br-9346c9dd9a25: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc noqueue state DOWN mode DEFAULT group default
link/ether 02:42:43:b1:ee:3b brd ff:ff:ff:ff:ff:ff
15: br-a28feae6b83c: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc noqueue state DOWN mode DEFAULT group default
link/ether 02:42:5d:ba:38:c8 brd ff:ff:ff:ff:ff:ff
16: br-1db02a26bdd0: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc noqueue state DOWN mode DEFAULT group default
link/ether 02:42:e4:ff:fe:a0 brd ff:ff:ff:ff:ff:ff
17: br-4ca8610e3d72: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc noqueue state DOWN mode DEFAULT group default
link/ether 02:42:c7:ee:50:8c brd ff:ff:ff:ff:ff:ff
18: br-604867f1852d: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc noqueue state DOWN mode DEFAULT group default
link/ether 02:42:db:85:46:ce brd ff:ff:ff:ff:ff:ff
19: br-8166f1f24274: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc noqueue state DOWN mode DEFAULT group default
link/ether 02:42:90:63:2e:3f brd ff:ff:ff:ff:ff:ff
20: br-3864e73fa63c: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc noqueue state DOWN mode DEFAULT group default
link/ether 02:42:fa:fe:ab:c1 brd ff:ff:ff:ff:ff:ff
21: br-46e81cf5fb5e: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc noqueue state DOWN mode DEFAULT group default
link/ether 02:42:2e:dd:b3:a5 brd ff:ff:ff:ff:ff:ff
22: br-dafd9fc1c73f: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc noqueue state DOWN mode DEFAULT group default
link/ether 02:42:d8:d7:e3:9d brd ff:ff:ff:ff:ff:ff
$ ip -br addr
lo UNKNOWN 127.0.0.1/8 ::1/128
enp47s0 DOWN
wlo1 UP 192.168.0.13/24 fe80::7820:93db:b655:d21f/64
docker0 DOWN 172.17.0.1/16
br-a593dce43362 DOWN 172.18.0.1/16
br-c77e5c8b1ce6 DOWN 192.168.16.1/20
br-c8d5ce7ce6c1 DOWN 172.29.0.1/16
br-f2e659a6d01a DOWN 172.20.0.1/16
br-fd59d8ed402b DOWN 172.28.0.1/16
br-35b3c8def3c9 DOWN 172.30.0.1/16
br-3a165a5c993a DOWN 172.25.0.1/16
br-4d363be4b599 DOWN 172.19.0.1/16
br-4e168a0cdf31 DOWN 172.27.0.1/16
br-9346c9dd9a25 DOWN 172.26.0.1/16
br-a28feae6b83c DOWN 172.21.0.1/16
br-1db02a26bdd0 DOWN 172.31.0.1/16
br-4ca8610e3d72 DOWN 192.168.0.1/20
br-604867f1852d DOWN 172.22.0.1/16
br-8166f1f24274 DOWN 172.24.0.1/16
br-3864e73fa63c DOWN 192.168.49.1/24
br-46e81cf5fb5e DOWN 192.168.240.1/20
br-dafd9fc1c73f DOWN 172.23.0.1/16
$ ip route
default via 192.168.0.1 dev wlo1 proto dhcp metric 600
169.254.0.0/16 dev wlo1 scope link metric 1000
172.17.0.0/16 dev docker0 proto kernel scope link src 172.17.0.1 linkdown
172.18.0.0/16 dev br-a593dce43362 proto kernel scope link src 172.18.0.1 linkdown
172.19.0.0/16 dev br-4d363be4b599 proto kernel scope link src 172.19.0.1 linkdown
172.20.0.0/16 dev br-f2e659a6d01a proto kernel scope link src 172.20.0.1 linkdown
172.21.0.0/16 dev br-a28feae6b83c proto kernel scope link src 172.21.0.1 linkdown
172.22.0.0/16 dev br-604867f1852d proto kernel scope link src 172.22.0.1 linkdown
172.23.0.0/16 dev br-dafd9fc1c73f proto kernel scope link src 172.23.0.1 linkdown
172.24.0.0/16 dev br-8166f1f24274 proto kernel scope link src 172.24.0.1 linkdown
172.25.0.0/16 dev br-3a165a5c993a proto kernel scope link src 172.25.0.1 linkdown
172.26.0.0/16 dev br-9346c9dd9a25 proto kernel scope link src 172.26.0.1 linkdown
172.27.0.0/16 dev br-4e168a0cdf31 proto kernel scope link src 172.27.0.1 linkdown
172.28.0.0/16 dev br-fd59d8ed402b proto kernel scope link src 172.28.0.1 linkdown
172.29.0.0/16 dev br-c8d5ce7ce6c1 proto kernel scope link src 172.29.0.1 linkdown
172.30.0.0/16 dev br-35b3c8def3c9 proto kernel scope link src 172.30.0.1 linkdown
172.31.0.0/16 dev br-1db02a26bdd0 proto kernel scope link src 172.31.0.1 linkdown
192.168.0.0/24 dev wlo1 proto kernel scope link src 192.168.0.13 metric 600
192.168.0.0/20 dev br-4ca8610e3d72 proto kernel scope link src 192.168.0.1 linkdown
192.168.16.0/20 dev br-c77e5c8b1ce6 proto kernel scope link src 192.168.16.1 linkdown
192.168.49.0/24 dev br-3864e73fa63c proto kernel scope link src 192.168.49.1 linkdown
192.168.240.0/20 dev br-46e81cf5fb5e proto kernel scope link src 192.168.240.1 linkdown
$ ip neigh
192.168.0.11 dev wlo1 lladdr 42:3f:8c:00:d9:f7 STALE
192.168.0.1 dev wlo1 lladdr e4:26:86:aa:d8:44 REACHABLE
$ sudo iptables-save -c
# Generated by iptables-save v1.8.7 on Tue Apr 16 20:35:55 2024
*filter
:INPUT ACCEPT [0:0]
:FORWARD DROP [3:673]
:OUTPUT ACCEPT [0:0]
:DOCKER - [0:0]
:DOCKER-ISOLATION-STAGE-1 - [0:0]
:DOCKER-ISOLATION-STAGE-2 - [0:0]
:DOCKER-USER - [0:0]
[3:673] -A FORWARD -j DOCKER-USER
[3:673] -A FORWARD -j DOCKER-ISOLATION-STAGE-1
[0:0] -A FORWARD -o docker0 -m conntrack --ctstate RELATED,ESTABLISHED -j ACCEPT
[0:0] -A FORWARD -o docker0 -j DOCKER
[0:0] -A FORWARD -i docker0 ! -o docker0 -j ACCEPT
[0:0] -A FORWARD -i docker0 -o docker0 -j ACCEPT
[0:0] -A FORWARD -o br-dafd9fc1c73f -m conntrack --ctstate RELATED,ESTABLISHED -j ACCEPT
[0:0] -A FORWARD -o br-dafd9fc1c73f -j DOCKER
[0:0] -A FORWARD -i br-dafd9fc1c73f ! -o br-dafd9fc1c73f -j ACCEPT
[0:0] -A FORWARD -i br-dafd9fc1c73f -o br-dafd9fc1c73f -j ACCEPT
[0:0] -A FORWARD -o br-46e81cf5fb5e -m conntrack --ctstate RELATED,ESTABLISHED -j ACCEPT
[0:0] -A FORWARD -o br-46e81cf5fb5e -j DOCKER
[0:0] -A FORWARD -i br-46e81cf5fb5e ! -o br-46e81cf5fb5e -j ACCEPT
[0:0] -A FORWARD -i br-46e81cf5fb5e -o br-46e81cf5fb5e -j ACCEPT
[0:0] -A FORWARD -o br-3864e73fa63c -m conntrack --ctstate RELATED,ESTABLISHED -j ACCEPT
[0:0] -A FORWARD -o br-3864e73fa63c -j DOCKER
[0:0] -A FORWARD -i br-3864e73fa63c ! -o br-3864e73fa63c -j ACCEPT
[0:0] -A FORWARD -i br-3864e73fa63c -o br-3864e73fa63c -j ACCEPT
[0:0] -A FORWARD -o br-8166f1f24274 -m conntrack --ctstate RELATED,ESTABLISHED -j ACCEPT
[0:0] -A FORWARD -o br-8166f1f24274 -j DOCKER
[0:0] -A FORWARD -i br-8166f1f24274 ! -o br-8166f1f24274 -j ACCEPT
[0:0] -A FORWARD -i br-8166f1f24274 -o br-8166f1f24274 -j ACCEPT
[0:0] -A FORWARD -o br-604867f1852d -m conntrack --ctstate RELATED,ESTABLISHED -j ACCEPT
[0:0] -A FORWARD -o br-604867f1852d -j DOCKER
[0:0] -A FORWARD -i br-604867f1852d ! -o br-604867f1852d -j ACCEPT
[0:0] -A FORWARD -i br-604867f1852d -o br-604867f1852d -j ACCEPT
[0:0] -A FORWARD -o br-4ca8610e3d72 -m conntrack --ctstate RELATED,ESTABLISHED -j ACCEPT
[0:0] -A FORWARD -o br-4ca8610e3d72 -j DOCKER
[0:0] -A FORWARD -i br-4ca8610e3d72 ! -o br-4ca8610e3d72 -j ACCEPT
[0:0] -A FORWARD -i br-4ca8610e3d72 -o br-4ca8610e3d72 -j ACCEPT
[0:0] -A FORWARD -o br-1db02a26bdd0 -m conntrack --ctstate RELATED,ESTABLISHED -j ACCEPT
[0:0] -A FORWARD -o br-1db02a26bdd0 -j DOCKER
[0:0] -A FORWARD -i br-1db02a26bdd0 ! -o br-1db02a26bdd0 -j ACCEPT
[0:0] -A FORWARD -i br-1db02a26bdd0 -o br-1db02a26bdd0 -j ACCEPT
[0:0] -A FORWARD -o br-a28feae6b83c -m conntrack --ctstate RELATED,ESTABLISHED -j ACCEPT
[0:0] -A FORWARD -o br-a28feae6b83c -j DOCKER
[0:0] -A FORWARD -i br-a28feae6b83c ! -o br-a28feae6b83c -j ACCEPT
[0:0] -A FORWARD -i br-a28feae6b83c -o br-a28feae6b83c -j ACCEPT
[0:0] -A FORWARD -o br-9346c9dd9a25 -m conntrack --ctstate RELATED,ESTABLISHED -j ACCEPT
[0:0] -A FORWARD -o br-9346c9dd9a25 -j DOCKER
[0:0] -A FORWARD -i br-9346c9dd9a25 ! -o br-9346c9dd9a25 -j ACCEPT
[0:0] -A FORWARD -i br-9346c9dd9a25 -o br-9346c9dd9a25 -j ACCEPT
[0:0] -A FORWARD -o br-4e168a0cdf31 -m conntrack --ctstate RELATED,ESTABLISHED -j ACCEPT
[0:0] -A FORWARD -o br-4e168a0cdf31 -j DOCKER
[0:0] -A FORWARD -i br-4e168a0cdf31 ! -o br-4e168a0cdf31 -j ACCEPT
[0:0] -A FORWARD -i br-4e168a0cdf31 -o br-4e168a0cdf31 -j ACCEPT
[0:0] -A FORWARD -o br-4d363be4b599 -m conntrack --ctstate RELATED,ESTABLISHED -j ACCEPT
[0:0] -A FORWARD -o br-4d363be4b599 -j DOCKER
[0:0] -A FORWARD -i br-4d363be4b599 ! -o br-4d363be4b599 -j ACCEPT
[0:0] -A FORWARD -i br-4d363be4b599 -o br-4d363be4b599 -j ACCEPT
[0:0] -A FORWARD -o br-3a165a5c993a -m conntrack --ctstate RELATED,ESTABLISHED -j ACCEPT
[0:0] -A FORWARD -o br-3a165a5c993a -j DOCKER
[0:0] -A FORWARD -i br-3a165a5c993a ! -o br-3a165a5c993a -j ACCEPT
[0:0] -A FORWARD -i br-3a165a5c993a -o br-3a165a5c993a -j ACCEPT
[0:0] -A FORWARD -o br-35b3c8def3c9 -m conntrack --ctstate RELATED,ESTABLISHED -j ACCEPT
[0:0] -A FORWARD -o br-35b3c8def3c9 -j DOCKER
[0:0] -A FORWARD -i br-35b3c8def3c9 ! -o br-35b3c8def3c9 -j ACCEPT
[0:0] -A FORWARD -i br-35b3c8def3c9 -o br-35b3c8def3c9 -j ACCEPT
[0:0] -A FORWARD -o br-fd59d8ed402b -m conntrack --ctstate RELATED,ESTABLISHED -j ACCEPT
[0:0] -A FORWARD -o br-fd59d8ed402b -j DOCKER
[0:0] -A FORWARD -i br-fd59d8ed402b ! -o br-fd59d8ed402b -j ACCEPT
[0:0] -A FORWARD -i br-fd59d8ed402b -o br-fd59d8ed402b -j ACCEPT
[0:0] -A FORWARD -o br-f2e659a6d01a -m conntrack --ctstate RELATED,ESTABLISHED -j ACCEPT
[0:0] -A FORWARD -o br-f2e659a6d01a -j DOCKER
[0:0] -A FORWARD -i br-f2e659a6d01a ! -o br-f2e659a6d01a -j ACCEPT
[0:0] -A FORWARD -i br-f2e659a6d01a -o br-f2e659a6d01a -j ACCEPT
[0:0] -A FORWARD -o br-c8d5ce7ce6c1 -m conntrack --ctstate RELATED,ESTABLISHED -j ACCEPT
[0:0] -A FORWARD -o br-c8d5ce7ce6c1 -j DOCKER
[0:0] -A FORWARD -i br-c8d5ce7ce6c1 ! -o br-c8d5ce7ce6c1 -j ACCEPT
[0:0] -A FORWARD -i br-c8d5ce7ce6c1 -o br-c8d5ce7ce6c1 -j ACCEPT
[0:0] -A FORWARD -o br-c77e5c8b1ce6 -m conntrack --ctstate RELATED,ESTABLISHED -j ACCEPT
[0:0] -A FORWARD -o br-c77e5c8b1ce6 -j DOCKER
[0:0] -A FORWARD -i br-c77e5c8b1ce6 ! -o br-c77e5c8b1ce6 -j ACCEPT
[0:0] -A FORWARD -i br-c77e5c8b1ce6 -o br-c77e5c8b1ce6 -j ACCEPT
[0:0] -A FORWARD -o br-a593dce43362 -m conntrack --ctstate RELATED,ESTABLISHED -j ACCEPT
[0:0] -A FORWARD -o br-a593dce43362 -j DOCKER
[0:0] -A FORWARD -i br-a593dce43362 ! -o br-a593dce43362 -j ACCEPT
[0:0] -A FORWARD -i br-a593dce43362 -o br-a593dce43362 -j ACCEPT
[0:0] -A DOCKER-ISOLATION-STAGE-1 -i docker0 ! -o docker0 -j DOCKER-ISOLATION-STAGE-2
[0:0] -A DOCKER-ISOLATION-STAGE-1 -i br-dafd9fc1c73f ! -o br-dafd9fc1c73f -j DOCKER-ISOLATION-STAGE-2
[0:0] -A DOCKER-ISOLATION-STAGE-1 -i br-46e81cf5fb5e ! -o br-46e81cf5fb5e -j DOCKER-ISOLATION-STAGE-2
[0:0] -A DOCKER-ISOLATION-STAGE-1 -i br-3864e73fa63c ! -o br-3864e73fa63c -j DOCKER-ISOLATION-STAGE-2
[0:0] -A DOCKER-ISOLATION-STAGE-1 -i br-8166f1f24274 ! -o br-8166f1f24274 -j DOCKER-ISOLATION-STAGE-2
[0:0] -A DOCKER-ISOLATION-STAGE-1 -i br-604867f1852d ! -o br-604867f1852d -j DOCKER-ISOLATION-STAGE-2
[0:0] -A DOCKER-ISOLATION-STAGE-1 -i br-4ca8610e3d72 ! -o br-4ca8610e3d72 -j DOCKER-ISOLATION-STAGE-2
[0:0] -A DOCKER-ISOLATION-STAGE-1 -i br-1db02a26bdd0 ! -o br-1db02a26bdd0 -j DOCKER-ISOLATION-STAGE-2
[0:0] -A DOCKER-ISOLATION-STAGE-1 -i br-a28feae6b83c ! -o br-a28feae6b83c -j DOCKER-ISOLATION-STAGE-2
[0:0] -A DOCKER-ISOLATION-STAGE-1 -i br-9346c9dd9a25 ! -o br-9346c9dd9a25 -j DOCKER-ISOLATION-STAGE-2
[0:0] -A DOCKER-ISOLATION-STAGE-1 -i br-4e168a0cdf31 ! -o br-4e168a0cdf31 -j DOCKER-ISOLATION-STAGE-2
[0:0] -A DOCKER-ISOLATION-STAGE-1 -i br-4d363be4b599 ! -o br-4d363be4b599 -j DOCKER-ISOLATION-STAGE-2
[0:0] -A DOCKER-ISOLATION-STAGE-1 -i br-3a165a5c993a ! -o br-3a165a5c993a -j DOCKER-ISOLATION-STAGE-2
[0:0] -A DOCKER-ISOLATION-STAGE-1 -i br-35b3c8def3c9 ! -o br-35b3c8def3c9 -j DOCKER-ISOLATION-STAGE-2
[0:0] -A DOCKER-ISOLATION-STAGE-1 -i br-fd59d8ed402b ! -o br-fd59d8ed402b -j DOCKER-ISOLATION-STAGE-2
[0:0] -A DOCKER-ISOLATION-STAGE-1 -i br-f2e659a6d01a ! -o br-f2e659a6d01a -j DOCKER-ISOLATION-STAGE-2
[0:0] -A DOCKER-ISOLATION-STAGE-1 -i br-c8d5ce7ce6c1 ! -o br-c8d5ce7ce6c1 -j DOCKER-ISOLATION-STAGE-2
[0:0] -A DOCKER-ISOLATION-STAGE-1 -i br-c77e5c8b1ce6 ! -o br-c77e5c8b1ce6 -j DOCKER-ISOLATION-STAGE-2
[0:0] -A DOCKER-ISOLATION-STAGE-1 -i br-a593dce43362 ! -o br-a593dce43362 -j DOCKER-ISOLATION-STAGE-2
[3:673] -A DOCKER-ISOLATION-STAGE-1 -j RETURN
[0:0] -A DOCKER-ISOLATION-STAGE-2 -o docker0 -j DROP
[0:0] -A DOCKER-ISOLATION-STAGE-2 -o br-dafd9fc1c73f -j DROP
[0:0] -A DOCKER-ISOLATION-STAGE-2 -o br-46e81cf5fb5e -j DROP
[0:0] -A DOCKER-ISOLATION-STAGE-2 -o br-3864e73fa63c -j DROP
[0:0] -A DOCKER-ISOLATION-STAGE-2 -o br-8166f1f24274 -j DROP
[0:0] -A DOCKER-ISOLATION-STAGE-2 -o br-604867f1852d -j DROP
[0:0] -A DOCKER-ISOLATION-STAGE-2 -o br-4ca8610e3d72 -j DROP
[0:0] -A DOCKER-ISOLATION-STAGE-2 -o br-1db02a26bdd0 -j DROP
[0:0] -A DOCKER-ISOLATION-STAGE-2 -o br-a28feae6b83c -j DROP
[0:0] -A DOCKER-ISOLATION-STAGE-2 -o br-9346c9dd9a25 -j DROP
[0:0] -A DOCKER-ISOLATION-STAGE-2 -o br-4e168a0cdf31 -j DROP
[0:0] -A DOCKER-ISOLATION-STAGE-2 -o br-4d363be4b599 -j DROP
[0:0] -A DOCKER-ISOLATION-STAGE-2 -o br-3a165a5c993a -j DROP
[0:0] -A DOCKER-ISOLATION-STAGE-2 -o br-35b3c8def3c9 -j DROP
[0:0] -A DOCKER-ISOLATION-STAGE-2 -o br-fd59d8ed402b -j DROP
[0:0] -A DOCKER-ISOLATION-STAGE-2 -o br-f2e659a6d01a -j DROP
[0:0] -A DOCKER-ISOLATION-STAGE-2 -o br-c8d5ce7ce6c1 -j DROP
[0:0] -A DOCKER-ISOLATION-STAGE-2 -o br-c77e5c8b1ce6 -j DROP
[0:0] -A DOCKER-ISOLATION-STAGE-2 -o br-a593dce43362 -j DROP
[0:0] -A DOCKER-ISOLATION-STAGE-2 -j RETURN
[3:673] -A DOCKER-USER -j RETURN
COMMIT
# Completed on Tue Apr 16 20:35:55 2024
# Generated by iptables-save v1.8.7 on Tue Apr 16 20:35:55 2024
*nat
:PREROUTING ACCEPT [0:0]
:INPUT ACCEPT [0:0]
:OUTPUT ACCEPT [0:0]
:POSTROUTING ACCEPT [0:0]
:DOCKER - [0:0]
[3:1090] -A PREROUTING -m addrtype --dst-type LOCAL -j DOCKER
[778:52788] -A OUTPUT ! -d 127.0.0.0/8 -m addrtype --dst-type LOCAL -j DOCKER
[0:0] -A POSTROUTING -s 172.17.0.0/16 ! -o docker0 -j MASQUERADE
[0:0] -A POSTROUTING -s 172.23.0.0/16 ! -o br-dafd9fc1c73f -j MASQUERADE
[0:0] -A POSTROUTING -s 192.168.240.0/20 ! -o br-46e81cf5fb5e -j MASQUERADE
[0:0] -A POSTROUTING -s 192.168.49.0/24 ! -o br-3864e73fa63c -j MASQUERADE
[0:0] -A POSTROUTING -s 172.24.0.0/16 ! -o br-8166f1f24274 -j MASQUERADE
[0:0] -A POSTROUTING -s 172.22.0.0/16 ! -o br-604867f1852d -j MASQUERADE
[2202:192320] -A POSTROUTING -s 192.168.0.0/20 ! -o br-4ca8610e3d72 -j MASQUERADE
[0:0] -A POSTROUTING -s 172.31.0.0/16 ! -o br-1db02a26bdd0 -j MASQUERADE
[0:0] -A POSTROUTING -s 172.21.0.0/16 ! -o br-a28feae6b83c -j MASQUERADE
[0:0] -A POSTROUTING -s 172.26.0.0/16 ! -o br-9346c9dd9a25 -j MASQUERADE
[0:0] -A POSTROUTING -s 172.27.0.0/16 ! -o br-4e168a0cdf31 -j MASQUERADE
[0:0] -A POSTROUTING -s 172.19.0.0/16 ! -o br-4d363be4b599 -j MASQUERADE
[0:0] -A POSTROUTING -s 172.25.0.0/16 ! -o br-3a165a5c993a -j MASQUERADE
[0:0] -A POSTROUTING -s 172.30.0.0/16 ! -o br-35b3c8def3c9 -j MASQUERADE
[0:0] -A POSTROUTING -s 172.28.0.0/16 ! -o br-fd59d8ed402b -j MASQUERADE
[631:65752] -A POSTROUTING -s 172.20.0.0/16 ! -o br-f2e659a6d01a -j MASQUERADE
[0:0] -A POSTROUTING -s 172.29.0.0/16 ! -o br-c8d5ce7ce6c1 -j MASQUERADE
[0:0] -A POSTROUTING -s 192.168.16.0/20 ! -o br-c77e5c8b1ce6 -j MASQUERADE
[0:0] -A POSTROUTING -s 172.18.0.0/16 ! -o br-a593dce43362 -j MASQUERADE
[0:0] -A DOCKER -i docker0 -j RETURN
[0:0] -A DOCKER -i br-dafd9fc1c73f -j RETURN
[0:0] -A DOCKER -i br-46e81cf5fb5e -j RETURN
[0:0] -A DOCKER -i br-3864e73fa63c -j RETURN
[0:0] -A DOCKER -i br-8166f1f24274 -j RETURN
[0:0] -A DOCKER -i br-604867f1852d -j RETURN
[0:0] -A DOCKER -i br-4ca8610e3d72 -j RETURN
[0:0] -A DOCKER -i br-1db02a26bdd0 -j RETURN
[0:0] -A DOCKER -i br-a28feae6b83c -j RETURN
[0:0] -A DOCKER -i br-9346c9dd9a25 -j RETURN
[0:0] -A DOCKER -i br-4e168a0cdf31 -j RETURN
[0:0] -A DOCKER -i br-4d363be4b599 -j RETURN
[0:0] -A DOCKER -i br-3a165a5c993a -j RETURN
[0:0] -A DOCKER -i br-35b3c8def3c9 -j RETURN
[0:0] -A DOCKER -i br-fd59d8ed402b -j RETURN
[0:0] -A DOCKER -i br-f2e659a6d01a -j RETURN
[0:0] -A DOCKER -i br-c8d5ce7ce6c1 -j RETURN
[0:0] -A DOCKER -i br-c77e5c8b1ce6 -j RETURN
[0:0] -A DOCKER -i br-a593dce43362 -j RETURN
COMMIT
# Completed on Tue Apr 16 20:35:55 2024
답변1
긴 이야기 짧게: Docker를 비난하십시오.
Wi-Fi 게이트웨이의 IP 주소는 192.168.0.1/24입니다.
많은 Docker 네트워크 중 하나가 192.168.0.0/20을 사용하고 로컬 호스트 IP 주소는 192.168.0.1/20입니다. 이는 게이트웨이와 동일합니다(넷마스크는 다르지만).
이로 인해 인터넷의 기본 경로인 192.168.0.1이 로컬 주소인 게이트웨이에 도달하려고 할 때 라우팅 충돌이 발생합니다.
나는 이것이 전체 인터넷을 LAN으로 바꿀 수 있다고 생각합니다(자신의 게이트웨이를 사용하는 것은 게이트웨이를 사용하지 않는 것과 동일하기 때문입니다). 인터넷 IP 주소에 대한 일부 요청은 게이트웨이를 사용하는 대신 ARP 요청을 트리거합니다.
빠른(그러나 임시) 수정: Docker를 중지하고 충돌하는 브리지 인터페이스를 삭제합니다.
sudo systemctl stop docker docker.socket
sudo ip link del dev br-4ca8610e3d72
실제 해결 방법은 모든 Docker 네트워크를 제거하고( docker network prune또는 사용 docker network rm ...) 충돌하는 네트워크를 사용하지 않도록 Docker의 구성을 변경하는 것입니다. 예를 들어 다음 서버 오류 Q/A를 확인하세요.
172.17.0.0 범위를 사용하지 않도록 Docker 구성
(그리고 10 범위의 것을 사용하십시오. ...)
또한 일반적으로 관련되어 사용되지 않는 Docker 리소스를 정기적으로 정리하여 docker ... prune ...Docker 네트워크에 이러한 리소스가 축적되지 않도록 할 수도 있습니다.