Hello All,
I'm installing some DIY routers, composed of Intel nuc's ,Linksys usb-ethernet adapters and Centos7
On most machines I just plug in the usb device, install Centos7 and everything works.
But on this one machine the network interface doesn't work.
After installing ip addr shows:
[root@clgmol ~]# ip addr
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN qlen 1
link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
inet 127.0.0.1/8 scope host lo
valid_lft forever preferred_lft forever
inet6 ::1/128 scope host
valid_lft forever preferred_lft forever
2: enp3s0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP qlen 1000
link/ether f4:4d:30:64:21:bb brd ff:ff:ff:ff:ff:ff
inet 192.168.80.189/25 brd 192.168.80.255 scope global dynamic enp3s0
valid_lft 431sec preferred_lft 431sec
inet6 fe80::f64d:30ff:fe64:21bb/64 scope link
valid_lft forever preferred_lft forever
3: wlp2s0: <BROADCAST,MULTICAST> mtu 1500 qdisc noop state DOWN qlen 1000
link/ether b8:81:98:9f:8f:1c brd ff:ff:ff:ff:ff:ff
4: enp0s20u3c2: <BROADCAST,MULTICAST> mtu 1500 qdisc noop state DOWN qlen 1000
link/ether 14:91:82:3b:7b:b9 brd ff:ff:ff:ff:ff:ff
[root@clgmol ~]# dmesg | tail -n15
[ 10.582462] Bluetooth: hci0: Intel device is already patched. patch num: 25
[ 10.770781] usb 2-3: new SuperSpeed USB device number 3 using xhci_hcd
[ 10.782704] usb 2-3: New USB device found, idVendor=13b1, idProduct=0041
[ 10.782728] usb 2-3: New USB device strings: Mfr=1, Product=2, SerialNumber=6
[ 10.782745] usb 2-3: Product: Linksys USB3GIGV1
[ 10.782759] usb 2-3: Manufacturer: Linksys
[ 10.782772] usb 2-3: SerialNumber: 000001000000
[ 10.787858] cdc_ether 2-3:2.0 eth0: register 'cdc_ether' at usb-0000:00:14.0-3, CDC Ethernet Device, 14:91:82:3b:7b:b9
[ 14.140292] nf_conntrack version 0.5.0 (16384 buckets, 65536 max)
[ 14.175958] Netfilter messages via NETLINK v0.30.
[ 14.178428] ctnetlink v0.93: registering with nfnetlink.
[ 14.350689] ipt_ULOG: ULOG: fail to register logger.
[ 15.192593] ipt_ULOG: ULOG: fail to register logger.
I create /etc/sysconfig/network-scripts/ifcfg-enp0s20u3c2 using the hardware address from ip addr en uuid created with uuidgen but I don't understand why it's not created on install:
TYPE=Ethernet
BOOTPROTO=static
DEFROUTE=yes
IPV4_FAILURE_FATAL=no
IPV6INIT=no
IPV6_AUTOCONF=yes
IPV6_DEFROUTE=yes
IPV6_PEERDNS=yes
IPV6_PEERROUTES=yes
IPV6_FAILURE_FATAL=no
IPV6_ADDR_GEN_MODE=stable-privacy
NAME=enp0s20u3c2
UUID=a728528c-0be7-49bc-9478-05743a285a7d
DEVICE=enp0s20u3c2
ONBOOT=yes
PEERDNS=yes
PEERROUTES=yes
NM_CONTROLLED=no
HWADDR=14:91:82:3b:7b:b9
IPADDR=192.168.70.1
NETMASK=255.255.255.0
Next I cannot launch the network:
[root@clgmol ~]# systemctl status network
● network.service - LSB: Bring up/down networking
Loaded: loaded (/etc/rc.d/init.d/network; bad; vendor preset: disabled)
Active: failed (Result: exit-code) since di 2017-02-21 20:57:56 CET; 15s ago
Docs: man:systemd-sysv-generator(8)
Process: 2638 ExecStart=/etc/rc.d/init.d/network start (code=exited, status=1/FAILURE)
CGroup: /system.slice/network.service
└─1076 /sbin/dhclient -H clgmol -1 -q -lf /var/lib/dhclient/dhclient-13b56b89-7b1d-42fa-aeb7-af96a38102ce-enp3s0.lease -pf /var/run/dhclient-enp3s0.pid en...
feb 21 20:57:56 clgmol.router network[2638]: RTNETLINK answers: File exists
feb 21 20:57:56 clgmol.router network[2638]: RTNETLINK answers: File exists
feb 21 20:57:56 clgmol.router network[2638]: RTNETLINK answers: File exists
feb 21 20:57:56 clgmol.router network[2638]: RTNETLINK answers: File exists
feb 21 20:57:56 clgmol.router network[2638]: RTNETLINK answers: File exists
feb 21 20:57:56 clgmol.router network[2638]: RTNETLINK answers: File exists
feb 21 20:57:56 clgmol.router systemd[1]: network.service: control process exited, code=exited status=1
feb 21 20:57:56 clgmol.router systemd[1]: Failed to start LSB: Bring up/down networking.
feb 21 20:57:56 clgmol.router systemd[1]: Unit network.service entered failed state.
feb 21 20:57:56 clgmol.router systemd[1]: network.service failed.
[root@clgmol ~]# ifup enp0s20u3c2
arping: recvfrom: Netwerk ligt plat
RTNETLINK answers: Network is down
I disabled NetworkManager
I tried with another Linksys device and I reinstalled and started over.
Why does it work with other devices and not with this one?
Many thanks for any advise.
Greetings, J
_______________________________________________
CentOS mailing list
CentOS@xxxxxxxxxx
https://lists.centos.org/mailman/listinfo/centos
