셀룰러 모뎀: pppd 모뎀이 끊깁니다.

2024-5-30 • tag-icon

Multitech Multiconnect Dragonfly(MTQ-LVW3-B02)를 통해 Verizon과 셀룰러 연결을 설정하려고 합니다. Verizon 네트워크에 연결하여 IP 주소를 얻을 수 있습니다. 문제는 모뎀이 몇 초 후에 연결을 끊는다는 것입니다.

Mar 26 19:26:57 localhost NetworkManager[2071]: nm-pppd-plugin-Message: nm- ppp-plugin: (nm_ip6_up): sending IPv6 config to NetworkManager... Mar 26 19:26:57 localhost NetworkManager[2071]: Script /etc/ppp/ipv6-up started (pid 10367) Mar 26 19:26:57 localhost NetworkManager[2071]: Script /etc/ppp/ipv6-up finished (pid 10367), status = 0x0 Mar 26 19:26:57 localhost pppd[10353]: sent [IPCP ConfReq id=0x3 <addr 100.113.208.106> <ms-dns1 198.224.160.135> <ms-dns2 198.224.164.135>] Mar 26 19:26:57 localhost pppd[10353]: rcvd [IPV6CP ConfAck id=0x2 <addr fe80::0000:0052:19b4:d801>] Mar 26 19:26:57 localhost pppd[10353]: local LL address fe80::0000:0052:19b4:d801 Mar 26 19:26:57 localhost NetworkManager[2071]: nm-pppd-plugin-Message: nm-ppp-plugin: (nm_ip_up): ip-up event Mar 26 19:26:57 localhost pppd[10353]: remote LL address fe80::6dac:d335:a09b:525b Mar 26 19:26:57 localhost NetworkManager[2071]: nm-pppd-plugin-Message: nm-ppp-plugin: (nm_ip_up): sending IPv4 config to NetworkManager... Mar 26 19:26:57 localhost NetworkManager[2071]: Script /etc/ppp/ip-up started (pid 10369) Mar 26 19:26:57 localhost pppd[10353]: Script /etc/ppp/ipv6-up started (pid 10367) Mar 26 19:26:57 localhost pppd[10353]: Script /etc/ppp/ipv6-up finished (pid 10367), status = 0x0 Mar 26 19:26:57 localhost pppd[10353]: rcvd [IPCP ConfAck id=0x3 <addr 100.113.208.106> <ms-dns1 198.224.160.135> <ms-dns2 198.224.164.135>] Mar 26 19:26:57 localhost NetworkManager[2071]: <info> [1522092417.0839] ppp-manager: (IPv4 Config Get) reply received. Mar 26 19:26:57 localhost pppd[10353]: local IP address 100.113.208.106 Mar 26 19:26:57 localhost pppd[10353]: remote IP address 100.113.208.106 Mar 26 19:26:57 localhost pppd[10353]: primary DNS address 198.224.160.135 Mar 26 19:26:57 localhost pppd[10353]: secondary DNS address 198.224.164.135 Mar 26 19:26:57 localhost pppd[10353]: Script /etc/ppp/ip-up started (pid 10369) Mar 26 19:26:57 localhost pppd[10353]: Script /etc/ppp/ip-up finished (pid 10369), status = 0x0 Mar 26 19:26:57 localhost NetworkManager[2071]: Script /etc/ppp/ip-up finished (pid 10369), status = 0x0 Mar 26 19:26:57 localhost NetworkManager[2071]: <info> [1522092417.1068] policy: set 'vzw' (ppp0) as default for IPv4 routing and DNS Mar 26 19:26:57 localhost dnsmasq[2407]: using nameserver 198.224.160.135#53(via ppp0) Mar 26 19:26:57 localhost dnsmasq[2407]: using nameserver 198.224.164.135#53(via ppp0) Mar 26 19:26:57 localhost nm-dispatcher: req:4 'up' [ppp0]: new request (1 scripts) Mar 26 19:26:57 localhost nm-dispatcher: req:4 'up' [ppp0]: start running ordered scripts... Mar 26 19:26:57 localhost NetworkManager[2071]: <info> [1522092417.1530] policy: set 'vzw' (ppp0) as default for IPv6 routing and DNS Mar 26 19:27:03 localhost pppd[10353]: Modem hangup Mar 26 19:27:03 localhost pppd[10353]: Connect time 0.1 minutes. Mar 26 19:27:03 localhost pppd[10353]: Sent 1302 bytes, received 1196 bytes. Mar 26 19:27:03 localhost pppd[10353]: Script /etc/ppp/ip-down started (pid 10523) Mar 26 19:27:03 localhost pppd[10353]: cif6addr: ioctl(SIOCDIFADDR): No such address Mar 26 19:27:03 localhost NetworkManager[2071]: Script /etc/ppp/ip-down started (pid 10523) Mar 26 19:27:03 localhost NetworkManager[2071]: nm-pppd-plugin-Message: nm-ppp-plugin: (nm_phasechange): status 8 / phase 'network' Mar 26 19:27:03 localhost pppd[10353]: Script /etc/ppp/ipv6-down started (pid 10527) Mar 26 19:27:03 localhost NetworkManager[2071]: Script /etc/ppp/ipv6-down started (pid 10527) Mar 26 19:27:03 localhost NetworkManager[2071]: nm-pppd-plugin-Message: nm-ppp-plugin: (nm_phasechange): status 5 / phase 'establish' Mar 26 19:27:03 localhost NetworkManager[2071]: nm-pppd-plugin-Message: nm-ppp-plugin: (nm_phasechange): status 11 / phase 'disconnect' Mar 26 19:27:03 localhost pppd[10353]: Connection terminated. Mar 26 19:27:03 localhost pppd[10353]: Connect time 0.1 minutes. Mar 26 19:27:03 localhost pppd[10353]: Sent 1302 bytes, received 1196 bytes. Mar 26 19:27:03 localhost nm-dispatcher: req:5 'down' [ppp0]: new request (1 scripts) Mar 26 19:27:03 localhost nm-dispatcher: req:5 'down' [ppp0]: start running ordered scripts... Mar 26 19:27:03 localhost NetworkManager[2071]: nm-pppd-plugin-Message: nm-ppp-plugin: (nm_phasechange): status 1 / phase 'dead' Mar 26 19:27:03 localhost NetworkManager[2071]: Script /etc/ppp/ip-down finished (pid 10523), status = 0x0 Mar 26 19:27:03 localhost NetworkManager[2071]: Script /etc/ppp/ipv6-down finished (pid 10527), status = 0x0 Mar 26 19:27:03 localhost NetworkManager[2071]: nm-pppd-plugin-Message: nm-ppp-plugin: (nm_exit_notify): cleaning up Mar 26 19:27:03 localhost pppd[10353]: Script /etc/ppp/ip-down finished (pid 10523), status = 0x0 Mar 26 19:27:03 localhost NetworkManager[2071]: <info> [1522092423.7625] devices removed (path: /sys/devices/virtual/net/ppp0, iface: ppp0) Mar 26 19:27:03 localhost pppd[10353]: Script /etc/ppp/ipv6-down finished (pid 10527), status = 0x0 Mar 26 19:27:03 localhost pppd[10353]: Exit. Mar 26 19:27:17 localhost NetworkManager[2071]: <info> [1522092437.1293] ppp-manager: starting PPP connection Mar 26 19:27:17 localhost NetworkManager[2071]: <info> [1522092437.1344] ppp-manager: pppd started with pid 10576 Mar 26 19:27:17 localhost pppd[10576]: Plugin /usr/lib/pppd/2.4.7/nm-pppd-plugin.so loaded. Mar 26 19:27:17 localhost NetworkManager[2071]: Plugin /usr/lib/pppd/2.4.7/nm-pppd-plugin.so loaded. Mar 26 19:27:17 localhost NetworkManager[2071]: nm-pppd-plugin-Message: nm-ppp-plugin: (plugin_init): initializing Mar 26 19:27:17 localhost pppd[10576]: pppd 2.4.7 started by root, uid 0 Mar 26 19:27:17 localhost pppd[10576]: Device ttyACM0 is locked by pid 10520 Mar 26 19:27:17 localhost NetworkManager[2071]: nm-pppd-plugin-Message: nm-ppp-plugin: (nm_phasechange): status 3 / phase 'serial connection' Mar 26 19:27:17 localhost NetworkManager[2071]: nm-pppd-plugin-Message: nm-ppp-plugin: (nm_phasechange): status 1 / phase 'dead' Mar 26 19:27:17 localhost NetworkManager[2071]: nm-pppd-plugin-Message: nm-ppp-plugin: (nm_exit_notify): cleaning up Mar 26 19:27:17 localhost pppd[10576]: Exit. Mar 26 19:27:17 localhost NetworkManager[2071]: <warn> [1522092437.1605] ppp-manager: pppd pid 10576 exited with error: Serial port lock failed Mar 26 19:27:28 localhost NetworkManager[2071]: <info> [1522092448.3542] ppp-manager: starting PPP connection Mar 26 19:27:28 localhost NetworkManager[2071]: <info> [1522092448.3592] ppp-manager: pppd started with pid 10589 Mar 26 19:27:28 localhost pppd[10589]: Plugin /usr/lib/pppd/2.4.7/nm-pppd-plugin.so loaded. Mar 26 19:27:28 localhost NetworkManager[2071]: Plugin /usr/lib/pppd/2.4.7/nm-pppd-plugin.so loaded. Mar 26 19:27:28 localhost NetworkManager[2071]: nm-pppd-plugin-Message: nm-ppp-plugin: (plugin_init): initializing Mar 26 19:27:28 localhost pppd[10589]: pppd 2.4.7 started by root, uid 0 Mar 26 19:27:28 localhost pppd[10589]: Device ttyACM0 is locked by pid 10520 Mar 26 19:27:28 localhost NetworkManager[2071]: nm-pppd-plugin-Message: nm-ppp-plugin: (nm_phasechange): status 3 / phase 'serial connection' Mar 26 19:27:28 localhost NetworkManager[2071]: nm-pppd-plugin-Message: nm-ppp-plugin: (nm_phasechange): status 1 / phase 'dead' Mar 26 19:27:28 localhost NetworkManager[2071]: nm-pppd-plugin-Message: nm-ppp-plugin: (nm_exit_notify): cleaning up Mar 26 19:27:28 localhost pppd[10589]: Exit. Mar 26 19:27:28 localhost NetworkManager[2071]: <warn> [1522092448.3865] ppp-manager: pppd pid 10589 exited with error: Serial port lock failed Mar 26 19:27:39 localhost NetworkManager[2071]: <info> [1522092459.7109] ppp-manager: starting PPP connection Mar 26 19:27:39 localhost NetworkManager[2071]: <info> [1522092459.7159] ppp-manager: pppd started with pid 10592 Mar 26 19:27:39 localhost pppd[10592]: Plugin /usr/lib/pppd/2.4.7/nm-pppd-plugin.so loaded. Mar 26 19:27:39 localhost NetworkManager[2071]: Plugin /usr/lib/pppd/2.4.7/nm-pppd-plugin.so loaded. Mar 26 19:27:39 localhost NetworkManager[2071]: nm-pppd-plugin-Message: nm-ppp-plugin: (plugin_init): initializing Mar 26 19:27:39 localhost pppd[10592]: pppd 2.4.7 started by root, uid 0 Mar 26 19:27:39 localhost NetworkManager[2071]: nm-pppd-plugin-Message: nm-ppp-plugin: (nm_phasechange): status 3 / phase 'serial connection' Mar 26 19:27:39 localhost NetworkManager[2071]: nm-pppd-plugin-Message: nm-ppp-plugin: (nm_phasechange): status 1 / phase 'dead' Mar 26 19:27:39 localhost NetworkManager[2071]: nm-pppd-plugin-Message: nm-ppp-plugin: (nm_exit_notify): cleaning up Mar 26 19:27:39 localhost NetworkManager[2071]: <warn> [1522092459.7426] ppp-manager: pppd pid 10592 exited with error: Serial port lock failed Mar 26 19:27:39 localhost pppd[10592]: Device ttyACM0 is locked by pid 10520 Mar 26 19:27:39 localhost pppd[10592]: Exit. Mar 26 19:28:00 localhost NetworkManager[2071]: <warn> [1522092480.2188] ppp-manager: pppd timed out or didn't initialize our dbus module NetworkManager를 통해 nmcli를 사용하고 있습니다. 사람들이 장치가 USB에 충분한 전력을 공급하지 않는다고 생각하는 다른 문제도 보았습니다. 그러나 장치가 오프라인일 때에도 lsusb에 장치가 표시됩니다.

lsusb Bus 004 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub Bus 003 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Bus 002 Device 002: ID 0424:5744 Standard Microsystems Corp. Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub Bus 001 Device 005: ID 0424:2740 Standard Microsystems Corp. Bus 001 Device 004: ID 067b:2303 Prolific Technology, Inc. PL2303 Serial Port Bus 001 Device 003: ID 1bc7:0036 Telit Wireless Solutions Bus 001 Device 002: ID 0424:2744 Standard Microsystems Corp. Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub

옵션 파일에 noipdefault를 추가해 보았지만 그것도 작동하지 않는 것 같습니다.

나는 완전히 헤매고 있으며 디버깅에 도움이된다면 좋을 것입니다.

답변1

나는 답을 찾았다. 문제는 Verizon이 2분 내에 잘못된 패킷 10개를 받으면 연결을 끊는다는 것입니다. 문제는 패킷을 라우터로도 사용하고 있기 때문에 패킷을 올바르게 NAT 처리하지 않는다는 것입니다. 브리지된 LAN의 패킷은 소스 IP 192.168.123.XXX를 사용하여 Verizon으로 전송됩니다. Verizon은 (정당하게) 이러한 패킷을 유효하지 않은 것으로 간주하고 연결을 닫습니다. 해결책은 간단히 다음 Iptables 규칙을 추가하는 것입니다.

iptables -t nat -A POSTROUTING -o ppp0 -j MASQUERADE

답변2

귀하의 질문에 대한 답변은 아니지만 AT&T와 비슷한 문제가 있었고 여기서 답변을 우연히 발견했습니다.

내 문제 설명

5~7분 후에 Linux 호스트가 있는 셀 모뎀의 네트워크 연결이 끊어집니다. Linux가 종료되면 ppp0인터페이스가 사라지는 것을 볼 수 있습니다 pppd.

이유

ppp0제 경우에는 (무의식적으로) 에 있는 파일을 통해 인터페이스에 대해 DHCP를 활성화했습니다 /etc/systemd/network/ppp0.network. src=0.0.0.0 및 dst=255.255.255.255인 DHCP 패킷은 셀룰러 모뎀에서 전송되며 AT&T에서는 유효하지 않은 트래픽으로 간주합니다.

해결책

파일을 삭제했습니다 /etc/systemd/network/ppp0.network(DHCP 설정과 함께). 이렇게 하면 분리가 발생하는 것을 방지할 수 있습니다. pppd에 관한 모든 것이 여전히 작동합니다( ppp0IP 주소 가져오기, 올바른 세션 등).

답변1

답변2

관련 정보