방금 우연히 cat /proc/sys/net/ipv4/ip_forward1을 반환한다는 것을 발견했습니다. 이전에 활성화된 기억이 없지만 net.ipv4.ip_forward내 시스템이 몇 년 낡았기 때문에 이를 배제할 수는 없습니다.
기본적으로 이 기능을 4.14.3-1-ARCH원하지 않는데 net.ipv4.ip_forward = 1, 어디서 활성화할 수 있나요? 알아요 /etc/sysctl.d. 하지만 IP 전달을 지정하는 문서는 없습니다. 그런데 재부팅 후에도 지속되는데 어디서 활성화할 수 있나요? 감사해요!
편집하다:내 인터페이스는 다음과 같습니다
$ 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: wlp4s0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc mq state UP mode DORMANT group default qlen 1000
link/ether a4:34:d9:a2:33:7f brd ff:ff:ff:ff:ff:ff
3: enp0s31f6: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc fq_codel state DOWN mode DEFAULT group default qlen 1000
link/ether 54:ee:75:8e:ef:37 brd ff:ff:ff:ff:ff:ff
4: pan1: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UNKNOWN mode DEFAULT group default qlen 1000
link/ether 2e:02:14:5b:d8:21 brd ff:ff:ff:ff:ff:ff
편집 2:내 -iptable의 내용 filter:
# iptables -t filter -L
Chain INPUT (policy ACCEPT)
target prot opt source destination
Chain FORWARD (policy ACCEPT)
target prot opt source destination
ACCEPT all -- anywhere anywhere
ACCEPT all -- anywhere anywhere
ACCEPT all -- anywhere anywhere
Chain OUTPUT (policy ACCEPT)
target prot opt source destination
편집 3:pan1항상 연결되어 있고 아마도 네트워크 인터페이스에 해당하는 NetworkManager에서 호출되는 연결을 우연히 발견했습니다 pan1. 흥미롭게도 - 모드입니다 bridge. 불행하게도 이 연결을 수동으로 생성하는 것은 상상할 수 없으며 연결이 어디서 왔는지 찾을 수도 없습니다( grep -rn "pan1" /etc/NetworkManager/system-connections/출력 없음). 첫 번째 의심은 페어링된 모든 블루투스 장치를 삭제하는 것이었지만 아무런 효과가 없었습니다. 연결 내용은 다음과 같습니다.
$ nmcli connection show pan1
connection.id: pan1
connection.uuid: fc8c690c-3874-48df-8ccb-98a0fc698604
connection.stable-id: --
connection.type: bridge
connection.interface-name: pan1
connection.autoconnect: no
connection.autoconnect-priority: 0
connection.autoconnect-retries: -1 (default)
connection.auth-retries: -1
connection.timestamp: 1512614672
connection.read-only: no
connection.permissions: --
connection.zone: --
connection.master: --
connection.slave-type: --
connection.autoconnect-slaves: -1 (default)
connection.secondaries: --
connection.gateway-ping-timeout: 0
connection.metered: unknown
connection.lldp: default
ipv4.method: manual
ipv4.dns: --
ipv4.dns-search: --
ipv4.dns-options: ""
ipv4.dns-priority: 100
ipv4.addresses: 10.228.230.1/24
ipv4.gateway: --
ipv4.routes: --
ipv4.route-metric: -1
ipv4.route-table: 0 (unspec)
ipv4.ignore-auto-routes: no
ipv4.ignore-auto-dns: no
ipv4.dhcp-client-id: --
ipv4.dhcp-timeout: 0 (default)
ipv4.dhcp-send-hostname: yes
ipv4.dhcp-hostname: --
ipv4.dhcp-fqdn: --
ipv4.never-default: no
ipv4.may-fail: yes
ipv4.dad-timeout: -1 (default)
ipv6.method: ignore
ipv6.dns: --
ipv6.dns-search: --
ipv6.dns-options: ""
ipv6.dns-priority: 100
ipv6.addresses: --
ipv6.gateway: --
ipv6.routes: --
ipv6.route-metric: -1
ipv6.route-table: 0 (unspec)
ipv6.ignore-auto-routes: no
ipv6.ignore-auto-dns: no
ipv6.never-default: no
ipv6.may-fail: yes
ipv6.ip6-privacy: -1 (unknown)
ipv6.addr-gen-mode: stable-privacy
ipv6.dhcp-send-hostname: yes
ipv6.dhcp-hostname: --
ipv6.token: --
bridge.mac-address: --
bridge.stp: no
bridge.priority: 32768
bridge.forward-delay: 0
bridge.hello-time: 1
bridge.max-age: 19
bridge.ageing-time: 299
bridge.group-forward-mask: 0
bridge.multicast-snooping: yes
proxy.method: none
proxy.browser-only: no
proxy.pac-url: --
proxy.pac-script: --
GENERAL.NAME: pan1
GENERAL.UUID: fc8c690c-3874-48df-8ccb-98a0fc698604
GENERAL.DEVICES: pan1
GENERAL.STATE: activated
GENERAL.DEFAULT: no
GENERAL.DEFAULT6: no
GENERAL.SPEC-OBJECT: --
GENERAL.VPN: no
GENERAL.DBUS-PATH: /org/freedesktop/NetworkManager/ActiveConnection/2
GENERAL.CON-PATH: /org/freedesktop/NetworkManager/Settings/62
GENERAL.ZONE: --
GENERAL.MASTER-PATH: --
IP4.ADDRESS[1]: 10.228.230.1/24
IP4.GATEWAY: --
IP4.ROUTE[1]: dst = 10.228.230.0/24, nh = 0.0.0.0, mt = 0
IP6.GATEWAY: --