Entries order in /etc/network/interfaces
I have a device with two interfaces, eth0 and eth1. One should get its IP from a DHCP server and the other should get its IP statically.
If my /etc/network/interfaces file is configured as follows:
auto lo
iface lo inet loopback
auto eth1
iface eth1 inet dhcp
iface eth1 inet6 auto
auto eth0
iface eth0 inet static
address 10.10.10.10
netmask 255.255.255.0
Everything works great, eth1 gets its IP from the DHCP server, eth0 sets its IP statically from the information given, but if I try to change the order in the file, such as
auto lo
iface lo inet loopback
auto eth0
iface eth0 inet static
address 10.10.10.10
netmask 255.255.255.0
auto eth1
iface eth1 inet dhcp
iface eth1 inet6 auto
In this case, eth1 fails to get an IP.
Does the /etc/network/interface care about the order of each interfaces, such that the admin should place the interfaces that get IPs through DHCP first, then the static ones, or is there a different error in the configuration I have made?
linux networking interface dhcp
edited 5 mins ago
PRY
2,05231025
asked Nov 21 '17 at 10:47
AncutaAncuta
261
migrated from stackoverflow.com Nov 21 '17 at 20:24
This question came from our site for professional and enthusiast programmers.
|
show 1 more comment
I have a device with two interfaces, eth0 and eth1. One should get its IP from a DHCP server and the other should get its IP statically.
If my /etc/network/interfaces file is configured as follows:
auto lo
iface lo inet loopback
auto eth1
iface eth1 inet dhcp
iface eth1 inet6 auto
auto eth0
iface eth0 inet static
address 10.10.10.10
netmask 255.255.255.0
Everything works great, eth1 gets its IP from the DHCP server, eth0 sets its IP statically from the information given, but if I try to change the order in the file, such as
auto lo
iface lo inet loopback
auto eth0
iface eth0 inet static
address 10.10.10.10
netmask 255.255.255.0
auto eth1
iface eth1 inet dhcp
iface eth1 inet6 auto
In this case, eth1 fails to get an IP.
Does the /etc/network/interface care about the order of each interfaces, such that the admin should place the interfaces that get IPs through DHCP first, then the static ones, or is there a different error in the configuration I have made?
linux networking interface dhcp
edited 5 mins ago
PRY
2,05231025
asked Nov 21 '17 at 10:47
AncutaAncuta
261
migrated from stackoverflow.com Nov 21 '17 at 20:24
This question came from our site for professional and enthusiast programmers.
Which OS are you using? Is this Ubuntu or Debian?
– Tgilgul
Nov 21 '17 at 11:40
It's a Debian. But as far as I know Ubuntu is a Debian distribution.
– Ancuta
Nov 21 '17 at 12:01
1
Which version? The interface was changed in newer versions.
– Tgilgul
Nov 21 '17 at 14:11
1
I have a repro on Ubuntu17.04. Might be a known issue. Need to check with Debian. In any case, this question should probably be on another SE site, maybe Unix & Linux.
– Tgilgul
Nov 21 '17 at 15:47
1
I found this bug: bugs.debian.org/cgi-bin/bugreport.cgi?bug=779681 which says dhcp is unconfiguring previous configurations. Might be related. Other than that I don't see anything related in the list of debian bugs for ifupdown package: bugs.debian.org/cgi-bin/…
– Tgilgul
Nov 23 '17 at 13:04
|
show 1 more comment
I have a device with two interfaces, eth0 and eth1. One should get its IP from a DHCP server and the other should get its IP statically.
If my /etc/network/interfaces file is configured as follows:
auto lo
iface lo inet loopback
auto eth1
iface eth1 inet dhcp
iface eth1 inet6 auto
auto eth0
iface eth0 inet static
address 10.10.10.10
netmask 255.255.255.0
Everything works great, eth1 gets its IP from the DHCP server, eth0 sets its IP statically from the information given, but if I try to change the order in the file, such as
auto lo
iface lo inet loopback
auto eth0
iface eth0 inet static
address 10.10.10.10
netmask 255.255.255.0
auto eth1
iface eth1 inet dhcp
iface eth1 inet6 auto
In this case, eth1 fails to get an IP.
Does the /etc/network/interface care about the order of each interfaces, such that the admin should place the interfaces that get IPs through DHCP first, then the static ones, or is there a different error in the configuration I have made?
linux networking interface dhcp
edited 5 mins ago
PRY
2,05231025
asked Nov 21 '17 at 10:47
AncutaAncuta
261
I have a device with two interfaces, eth0 and eth1. One should get its IP from a DHCP server and the other should get its IP statically.
If my /etc/network/interfaces file is configured as follows:
auto lo
iface lo inet loopback
auto eth1
iface eth1 inet dhcp
iface eth1 inet6 auto
auto eth0
iface eth0 inet static
address 10.10.10.10
netmask 255.255.255.0
Everything works great, eth1 gets its IP from the DHCP server, eth0 sets its IP statically from the information given, but if I try to change the order in the file, such as
auto lo
iface lo inet loopback
auto eth0
iface eth0 inet static
address 10.10.10.10
netmask 255.255.255.0
auto eth1
iface eth1 inet dhcp
iface eth1 inet6 auto
In this case, eth1 fails to get an IP.
Does the /etc/network/interface care about the order of each interfaces, such that the admin should place the interfaces that get IPs through DHCP first, then the static ones, or is there a different error in the configuration I have made?
linux networking interface dhcp
linux networking interface dhcp
edited 5 mins ago
PRY
2,05231025
asked Nov 21 '17 at 10:47
AncutaAncuta
261
edited 5 mins ago
PRY
2,05231025
asked Nov 21 '17 at 10:47
AncutaAncuta
261
edited 5 mins ago
PRY
2,05231025
edited 5 mins ago
PRY
2,05231025
edited 5 mins ago
PRY
2,05231025
2,05231025
asked Nov 21 '17 at 10:47
AncutaAncuta
261
asked Nov 21 '17 at 10:47
AncutaAncuta
261
asked Nov 21 '17 at 10:47
AncutaAncuta
261
261
migrated from stackoverflow.com Nov 21 '17 at 20:24
This question came from our site for professional and enthusiast programmers.
migrated from stackoverflow.com Nov 21 '17 at 20:24
This question came from our site for professional and enthusiast programmers.
Which OS are you using? Is this Ubuntu or Debian?
– Tgilgul
Nov 21 '17 at 11:40
It's a Debian. But as far as I know Ubuntu is a Debian distribution.
– Ancuta
Nov 21 '17 at 12:01
1
Which version? The interface was changed in newer versions.
– Tgilgul
Nov 21 '17 at 14:11
1
I have a repro on Ubuntu17.04. Might be a known issue. Need to check with Debian. In any case, this question should probably be on another SE site, maybe Unix & Linux.
– Tgilgul
Nov 21 '17 at 15:47
1
I found this bug: bugs.debian.org/cgi-bin/bugreport.cgi?bug=779681 which says dhcp is unconfiguring previous configurations. Might be related. Other than that I don't see anything related in the list of debian bugs for ifupdown package: bugs.debian.org/cgi-bin/…
– Tgilgul
Nov 23 '17 at 13:04
|
show 1 more comment
Which OS are you using? Is this Ubuntu or Debian?
– Tgilgul
Nov 21 '17 at 11:40
It's a Debian. But as far as I know Ubuntu is a Debian distribution.
– Ancuta
Nov 21 '17 at 12:01
1
Which version? The interface was changed in newer versions.
– Tgilgul
Nov 21 '17 at 14:11
1
I have a repro on Ubuntu17.04. Might be a known issue. Need to check with Debian. In any case, this question should probably be on another SE site, maybe Unix & Linux.
– Tgilgul
Nov 21 '17 at 15:47
1
I found this bug: bugs.debian.org/cgi-bin/bugreport.cgi?bug=779681 which says dhcp is unconfiguring previous configurations. Might be related. Other than that I don't see anything related in the list of debian bugs for ifupdown package: bugs.debian.org/cgi-bin/…
– Tgilgul
Nov 23 '17 at 13:04
Which OS are you using? Is this Ubuntu or Debian?
– Tgilgul
Nov 21 '17 at 11:40
Which OS are you using? Is this Ubuntu or Debian?
– Tgilgul
Nov 21 '17 at 11:40
It's a Debian. But as far as I know Ubuntu is a Debian distribution.
– Ancuta
Nov 21 '17 at 12:01
It's a Debian. But as far as I know Ubuntu is a Debian distribution.
– Ancuta
Nov 21 '17 at 12:01
1
1
Which version? The interface was changed in newer versions.
– Tgilgul
Nov 21 '17 at 14:11
Which version? The interface was changed in newer versions.
– Tgilgul
Nov 21 '17 at 14:11
1
1
I have a repro on Ubuntu17.04. Might be a known issue. Need to check with Debian. In any case, this question should probably be on another SE site, maybe Unix & Linux.
– Tgilgul
Nov 21 '17 at 15:47
I have a repro on Ubuntu17.04. Might be a known issue. Need to check with Debian. In any case, this question should probably be on another SE site, maybe Unix & Linux.
– Tgilgul
Nov 21 '17 at 15:47
1
1
I found this bug: bugs.debian.org/cgi-bin/bugreport.cgi?bug=779681 which says dhcp is unconfiguring previous configurations. Might be related. Other than that I don't see anything related in the list of debian bugs for ifupdown package: bugs.debian.org/cgi-bin/…
– Tgilgul
Nov 23 '17 at 13:04
I found this bug: bugs.debian.org/cgi-bin/bugreport.cgi?bug=779681 which says dhcp is unconfiguring previous configurations. Might be related. Other than that I don't see anything related in the list of debian bugs for ifupdown package: bugs.debian.org/cgi-bin/…
– Tgilgul
Nov 23 '17 at 13:04
|
show 1 more comment
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Which OS are you using? Is this Ubuntu or Debian?
– Tgilgul
Nov 21 '17 at 11:40
It's a Debian. But as far as I know Ubuntu is a Debian distribution.
– Ancuta
Nov 21 '17 at 12:01
1
Which version? The interface was changed in newer versions.
– Tgilgul
Nov 21 '17 at 14:11
1
I have a repro on Ubuntu17.04. Might be a known issue. Need to check with Debian. In any case, this question should probably be on another SE site, maybe Unix & Linux.
– Tgilgul
Nov 21 '17 at 15:47
1
I found this bug: bugs.debian.org/cgi-bin/bugreport.cgi?bug=779681 which says dhcp is unconfiguring previous configurations. Might be related. Other than that I don't see anything related in the list of debian bugs for ifupdown package: bugs.debian.org/cgi-bin/…
– Tgilgul
Nov 23 '17 at 13:04