1
1
So this is what i'm trying to do:
I have a physical NIC with dev name eth0 with ip 192.168.1.2 and gateway 192.168.1.1 and I want to setup a VLAN with ip 192.168.1.x and same gateway as eth0.
Setting up the VLAN runs smoothly and i give the VLAN a iface name of eth0.10 and an ip of 192.168.1.69. Now when trying to establish a connection i get an error:
holmen@filserver:~$ sudo ifup eth0.10
Set name-type for VLAN subsystem. Should be visible in /proc/net/vlan/config
RTNETLINK answers: File exists
Failed to bring up eth0.10.
So how do I get the VLAN to connect to the internet and what does the error message mean? My guess s that it have something to do with the broadcast.
Please help!
Settings: /etc/network/interfaces
# The loopback network interface
auto lo
iface lo inet loopback
# The primary network interface
auto eth0
iface eth0 inet dhcp
address 192.168.1.2
netmask 255.255.255.0
network 192.168.1.0
gateway 192.168.1.1
iface eth0.10 inet static
address 192.168.1.69
netmask 255.255.255.0
gateway 192.168.1.1
I have removed the auto eth0.10 since i dont want to establish it at startup
Settings: ifconfig
holmen@filserver:~$ ifconfig
eth0 Link encap:Ethernet HWaddr 00:1a:4d:5b:02:5c
inet addr:192.168.1.2 Bcast:192.168.1.255 Mask:255.255.255.0
inet6 addr: fe80::21a:4dff:fe5b:25c/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:11670807 errors:0 dropped:0 overruns:0 frame:0
TX packets:22363842 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:833725090 (833.7 MB) TX bytes:31876321312 (31.8 GB)
Interrupt:44 Base address:0x4000
eth0.10 Link encap:Ethernet HWaddr 00:1a:4d:5b:02:5c
inet addr:192.168.1.69 Bcast:192.168.1.255 Mask:255.255.255.0
inet6 addr: fe80::21a:4dff:fe5b:25c/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:432 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:0 (0.0 B) TX bytes:41501 (41.5 KB)
lo Link encap:Local Loopback
inet addr:127.0.0.1 Mask:255.0.0.0
inet6 addr: ::1/128 Scope:Host
UP LOOPBACK RUNNING MTU:16436 Metric:1
RX packets:4899 errors:0 dropped:0 overruns:0 frame:0
TX packets:4899 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:697405 (697.4 KB) TX bytes:697405 (697.4 KB)
Settings: netstat output
holmen@filserver:~$ netstat -anr
Kernel IP routing table
Destination Gateway Genmask Flags MSS Window irtt Iface
0.0.0.0 192.168.1.1 0.0.0.0 UG 0 0 0 eth0
192.168.1.0 0.0.0.0 255.255.255.0 U 0 0 0 eth0
192.168.1.0 0.0.0.0 255.255.255.0 U 0 0 0 eth0.10
Test: ping output domain name
holmen@filserver:~$ ping -I eth0.10 www.dn.se
PING a1910.g1.akamai.net (23.60.69.161) from 192.168.1.2 eth0.10: 56(84) bytes of data.
From filserver.local (192.168.1.69) icmp_seq=1 Destination Host Unreachable
From filserver.local (192.168.1.69) icmp_seq=2 Destination Host Unreachable
From filserver.local (192.168.1.69) icmp_seq=3 Destination Host Unreachable
^C
--- a1910.g1.akamai.net ping statistics ---
5 packets transmitted, 0 received, +3 errors, 100% packet loss, time 4025ms
pipe 3
Test: ping output ip addr
holmen@filserver:~$ ping -I eth0.10 8.8.8.8
PING 8.8.8.8 (8.8.8.8) from 192.168.1.2 eth0.10: 56(84) bytes of data.
From 192.168.1.69 icmp_seq=1 Destination Host Unreachable
From 192.168.1.69 icmp_seq=2 Destination Host Unreachable
From 192.168.1.69 icmp_seq=3 Destination Host Unreachable
^C
--- 8.8.8.8 ping statistics ---
5 packets transmitted, 0 received, +3 errors, 100% packet loss, time 4023ms
pipe 3
This Q/A made me go read. eth0.10 is a VLAN, as linux can handle 802.11q. (See https://wiki.ubuntu.com/vlan) I was confusing this with eth0:1, etc, is a virtual interface, which allows the same NIC to have multiple IP addresses.
– Chris K – 2014-01-21T01:17:21.360