如何在18.04建立WWAN的IP连接

Question

如何建立和IP连接到塞拉利昂无线MC7354的WWAN？

我有一个塞拉利昂无线器7354调制解调器运行Ubuntu18.04的系统。

ModemManager可以看到和控制调制解调器。

$ mmcli --modem 0

返回很多很棒的信息。(这就是我知道调制解调器是MC7354的原因。)

/org/freedesktop/ModemManager1/Modem/0 (device id '232972a04adf83122a392fd83b274431de596ebd')
  -------------------------
  Hardware |   manufacturer: 'Sierra Wireless, Incorporated'
           |          model: 'MC7354'
           |       

端口列表显示了几个端口：

ports: 'ttyUSB0 (qcdm), wwp0s20u5i8 (net), wwp0s20u5i10 (net), cdc-wdm0 (qmi), cdc-wdm1 (qmi), ttyUSB2 (at)'

$ mmcli --modem 0 --simple-connect="apn=internet"

是成功的

$ mmcli --bearer 0
Bearer '/org/freedesktop/ModemManager1/Bearer/0'
  -------------------------
  Status             |   connected: 'yes'
                     |   suspended: 'no'
                     |   interface: 'wwp0s20u5i8'
                     |  IP timeout: '20'
  -------------------------
  Properties         |         apn: 'internet'
                     |     roaming: 'allowed'
                     |     IP type: 'none'
                     |        user: 'none'
                     |    password: 'none'
                     |      number: 'none'
                     | Rm protocol: 'unknown'
  -------------------------
  IPv4 configuration |   method: 'static'
                     |  address: '100.232.81.142'
                     |   prefix: '30'
                     |  gateway: '100.232.81.141'
                     |      DNS: '10.177.0.34', '10.177.0.210'
                     |      MTU: '1430'
  -------------------------
  IPv6 configuration |   method: 'unknown'
  -------------------------
  Stats              |          Duration: '839'
                     |    Bytes received: 'N/A'
                     | Bytes transmitted: 'N/A'

显示调制解调器连接到internet (?)。

如何在Ubuntu上建立连接以使用此接口？

$ ifconfig -a 

wwp0s20u5i8: flags=4098  mtu 1500
        ether 0e:ff:cc:40:45:be  txqueuelen 1000  (Ethernet)
        RX packets 0  bytes 0 (0.0 B)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 0  bytes 0 (0.0 B)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

wwp0s20u5i10: flags=4098  mtu 1500
        ether 12:4e:ee:54:3e:3e  txqueuelen 1000  (Ethernet)
        RX packets 0  bytes 0 (0.0 B)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 0  bytes 0 (0.0 B)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

如何建立到此设备的IP连接？

谢谢你的帮助！

Answer 1

我想你还是想知道。

如何建立和IP连接到塞拉利昂无线MC7354的WWAN？

你已经这样做了：

$ mmcli --bearer 0

Bearer '/org/freedesktop/ModemManager1/Bearer/0'
  -------------------------
  Status             |   connected: 'yes'

因此，基本上所有剩下的是设置适当的WWAN接口与IP和网络掩码设置给定。但是，您还必须将想要通过接口的通信量路由到定义的网关。

您也许应该阅读服务器指南中第43页的整个部分，注意如果您使用netplan，它会与您发生关系(如它会忽略您为网络管理器手动添加的连接)。

  IPv4 configuration 
                 |   method: 'static'
                 |  address: '100.232.81.142'
                 |   prefix: '30'
                 |  gateway: '100.232.81.141'
                 |      DNS: '10.177.0.34', '10.177.0.210'
                 |      MTU: '1430'

它说静态是不相关的，只意味着只要承载保持连接，你就会拥有那个IP。除非您为静态IP付费，否则isp很可能在您重新连接承载端时给您一个新的IP。

您所收到的设置很可能基于您所连接的APN。

依赖ISP，他们也可以强制使用他们的dns。

所以，我的问题是，当您至少有一个易于使用的网络管理器可以处理它时，为什么要手工操作呢？

    $ apt show network-manager
Package: network-manager
Version: 1.10.6-2ubuntu1.1
Priority: optional
Section: net
Origin: Ubuntu
Maintainer: Ubuntu Developers 
Original-Maintainer: Utopia Maintenance Team 
Bugs: https://bugs.launchpad.net/ubuntu/+filebug
Installed-Size: 5 927 kB
Depends: libaudit1 (>= 1:2.2.1), libbluetooth3 (>= 4.91), libc6 (>= 2.25), libcurl3-gnutls (>= 7.16.3), libglib2.0-0 (>= 2.43.2), libgnutls30 (>= 3.5.0), libjansson4 (>= 2.0.1), libmm-glib0 (>= 1.0.0), libndp0 (>= 1.2), libnewt0.52, libnl-3-200 (>= 3.2.21), libnm0 (>= 1.10.2), libpolkit-agent-1-0 (>= 0.99), libpolkit-gobject-1-0 (>= 0.104), libpsl5 (>= 0.13.0), libreadline7 (>= 6.0), libselinux1 (>= 1.32), libsystemd0 (>= 221), libteamdctl0 (>= 1.9), libudev1 (>= 183), libuuid1 (>= 2.16), lsb-base (>= 3.2-14), wpasupplicant (>= 0.7.3-1), dbus (>= 1.1.2), udev, adduser, isc-dhcp-client (>= 4.1.1-P1-4), libpam-systemd, policykit-1
Recommends: ppp, dnsmasq-base, iptables, modemmanager, network-manager-pptp, crda, iputils-arping
Suggests: avahi-autoipd, libteam-utils
Breaks: ppp (>= 2.4.7-3~), ppp (<< 2.4.7-2+~)
Homepage: https://wiki.gnome.org/Projects/NetworkManager
Task: ubuntu-desktop, kubuntu-desktop, kubuntu-full, xubuntu-core, xubuntu-desktop, lubuntu-gtk-desktop, lubuntu-desktop, lubuntu-qt-desktop, ubuntustudio-desktop-core, ubuntustudio-desktop, ubuntukylin-desktop, ubuntu-mate-core, ubuntu-mate-desktop, ubuntu-budgie-desktop
Supported: 5y
Download-Size: 1 500 kB
APT-Manual-Installed: yes
APT-Sources: http://archive.ubuntu.com/ubuntu bionic-updates/main amd64 Packages
Description: network management framework (daemon and userspace tools)
 NetworkManager is a system network service that manages your network devices
 and connections, attempting to keep active network connectivity when
 available. It manages ethernet, WiFi, mobile broadband (WWAN), and PPPoE
 devices, and provides VPN integration with a variety of different VPN
 services.
 .
 This package provides the userspace daemons and a command line interface to
 interact with NetworkManager.
 .
 Optional dependencies:
  * avahi-autoipd: Used for IPv4LL, a protocol for automatic Link-Local IP
    address configuration.
  * ppp: Required for establishing dial-up connections (e.g. via GSM).
  * dnsmasq-base/iptables: Required for creating Ad-hoc connections and
    connection sharing.
  * libteam-utils: Network Team driver allows multiple network interfaces to be
    teamed together and act like a single one. This process is called "ethernet
    bonding", "channel teaming" or "link aggregation".

如果你读到上面的内容，它并不是它需要桌面的任何地方，实际上它正好相反，桌面会把它拉进去，来完成联网部分。

So我的建议还是一样的，安装网络管理器.

如果您已经使用了其他任何网络管理器，如networkd .，只需将网络管理器配置为只配置wwan即可。

这可以通过编辑/etc/NetworkManager/conf.d/10-globally-managed-devices.conf完成。

unmanaged-devices=*,except:type:wwan,except:type:gsm

要设置连接，可以使用nmcli或手动创建配置：

sudo vim /etc/NetworkManager/system-connections/myisp

[connection]
id=myisp
uuid=755d5082-e2e3-4691-873a-0669b27aaaa2
type=gsm
interface-name=cdc-wdm0
permissions=
timestamp=1547308598

[gsm]
apn=internet.public
number=*99#

[ipv4]
dns=8.8.8.8;8.8.4.4;1.1.1.1;
dns-search=
ignore-auto-dns=true
method=auto

[ipv6]
addr-gen-mode=stable-privacy
dns-search=
method=auto

Hopefully这将引导你朝着正确的方向，最好的祝愿:)