How can I change the priority of network interfaces?
Sorry for the complicated scenario.
OS is: CentOS 7
Currently what happens:
- Server boots.
- Not accessible through it's static IP.
- Can connect to it through a local area IP (br160 192.168.160.27) on another server.
- Once connected, I login through webmin, go to network interfaces, select the interface with the static ip assigned to the server (eno2 10.242.182.111), and click "save & apply".
- The server can now access internet and I can connect to it directly through the eno2 IP (which is still on a closed VPN network, but that's how it should be).
So every time it boots I need to go and sort of reactivate eno2. It seems like it gets activated at boot (I checked), but maybe the priority is wrong?
ifconfig -a & route -n available here:
https://pastebin.com/vBcuw4Vt
cat /etc/sysconfig/network-scripts/ifcfg-eno2 :
https://pastebin.com/XJ9rhak8
I went from someone managing my server to that person leaving and me taking over. I can handle basic linux but not advanced networking.
EDIT: I am also seeing the boot routing as follows:
- Any Interface to 192.168.160.11
- eth0 to 10.242.182.1
Should I switch the order?
network-interface
asked Aug 13 '17 at 14:34
AdrianP.AdrianP.
64
bumped to the homepage by Community♦ 14 mins ago
This question has answers that may be good or bad; the system has marked it active so that they can be reviewed.
add a comment |
Sorry for the complicated scenario.
OS is: CentOS 7
Currently what happens:
- Server boots.
- Not accessible through it's static IP.
- Can connect to it through a local area IP (br160 192.168.160.27) on another server.
- Once connected, I login through webmin, go to network interfaces, select the interface with the static ip assigned to the server (eno2 10.242.182.111), and click "save & apply".
- The server can now access internet and I can connect to it directly through the eno2 IP (which is still on a closed VPN network, but that's how it should be).
So every time it boots I need to go and sort of reactivate eno2. It seems like it gets activated at boot (I checked), but maybe the priority is wrong?
ifconfig -a & route -n available here:
https://pastebin.com/vBcuw4Vt
cat /etc/sysconfig/network-scripts/ifcfg-eno2 :
https://pastebin.com/XJ9rhak8
I went from someone managing my server to that person leaving and me taking over. I can handle basic linux but not advanced networking.
EDIT: I am also seeing the boot routing as follows:
- Any Interface to 192.168.160.11
- eth0 to 10.242.182.1
Should I switch the order?
network-interface
asked Aug 13 '17 at 14:34
AdrianP.AdrianP.
64
bumped to the homepage by Community♦ 14 mins ago
This question has answers that may be good or bad; the system has marked it active so that they can be reviewed.
Can you add the content of/etc/sysconfig/network-scripts/ifcfg-eno2? In particular, that should have a lineONBOOT=which might be set tonofor you?
– Ulrich Schwarz
Aug 13 '17 at 14:39
Was just looking at it, I edited the post and put it here pastebin.com/XJ9rhak8 looks like onboot is on.
– AdrianP.
Aug 13 '17 at 14:42
add a comment |
Sorry for the complicated scenario.
OS is: CentOS 7
Currently what happens:
- Server boots.
- Not accessible through it's static IP.
- Can connect to it through a local area IP (br160 192.168.160.27) on another server.
- Once connected, I login through webmin, go to network interfaces, select the interface with the static ip assigned to the server (eno2 10.242.182.111), and click "save & apply".
- The server can now access internet and I can connect to it directly through the eno2 IP (which is still on a closed VPN network, but that's how it should be).
So every time it boots I need to go and sort of reactivate eno2. It seems like it gets activated at boot (I checked), but maybe the priority is wrong?
ifconfig -a & route -n available here:
https://pastebin.com/vBcuw4Vt
cat /etc/sysconfig/network-scripts/ifcfg-eno2 :
https://pastebin.com/XJ9rhak8
I went from someone managing my server to that person leaving and me taking over. I can handle basic linux but not advanced networking.
EDIT: I am also seeing the boot routing as follows:
- Any Interface to 192.168.160.11
- eth0 to 10.242.182.1
Should I switch the order?
network-interface
asked Aug 13 '17 at 14:34
AdrianP.AdrianP.
64
Sorry for the complicated scenario.
OS is: CentOS 7
Currently what happens:
- Server boots.
- Not accessible through it's static IP.
- Can connect to it through a local area IP (br160 192.168.160.27) on another server.
- Once connected, I login through webmin, go to network interfaces, select the interface with the static ip assigned to the server (eno2 10.242.182.111), and click "save & apply".
- The server can now access internet and I can connect to it directly through the eno2 IP (which is still on a closed VPN network, but that's how it should be).
So every time it boots I need to go and sort of reactivate eno2. It seems like it gets activated at boot (I checked), but maybe the priority is wrong?
ifconfig -a & route -n available here:
https://pastebin.com/vBcuw4Vt
cat /etc/sysconfig/network-scripts/ifcfg-eno2 :
https://pastebin.com/XJ9rhak8
I went from someone managing my server to that person leaving and me taking over. I can handle basic linux but not advanced networking.
EDIT: I am also seeing the boot routing as follows:
- Any Interface to 192.168.160.11
- eth0 to 10.242.182.1
Should I switch the order?
network-interface
network-interface
asked Aug 13 '17 at 14:34
AdrianP.AdrianP.
64
asked Aug 13 '17 at 14:34
AdrianP.AdrianP.
64
edited Aug 13 '17 at 15:13
AdrianP.
asked Aug 13 '17 at 14:34
AdrianP.AdrianP.
64
asked Aug 13 '17 at 14:34
AdrianP.AdrianP.
64
asked Aug 13 '17 at 14:34
AdrianP.AdrianP.
64
64
bumped to the homepage by Community♦ 14 mins ago
This question has answers that may be good or bad; the system has marked it active so that they can be reviewed.
bumped to the homepage by Community♦ 14 mins ago
This question has answers that may be good or bad; the system has marked it active so that they can be reviewed.
Can you add the content of/etc/sysconfig/network-scripts/ifcfg-eno2? In particular, that should have a lineONBOOT=which might be set tonofor you?
– Ulrich Schwarz
Aug 13 '17 at 14:39
Was just looking at it, I edited the post and put it here pastebin.com/XJ9rhak8 looks like onboot is on.
– AdrianP.
Aug 13 '17 at 14:42
add a comment |
Can you add the content of/etc/sysconfig/network-scripts/ifcfg-eno2? In particular, that should have a lineONBOOT=which might be set tonofor you?
– Ulrich Schwarz
Aug 13 '17 at 14:39
Was just looking at it, I edited the post and put it here pastebin.com/XJ9rhak8 looks like onboot is on.
– AdrianP.
Aug 13 '17 at 14:42
Can you add the content of
/etc/sysconfig/network-scripts/ifcfg-eno2? In particular, that should have a line ONBOOT= which might be set to no for you?– Ulrich Schwarz
Aug 13 '17 at 14:39
Can you add the content of
/etc/sysconfig/network-scripts/ifcfg-eno2? In particular, that should have a line ONBOOT= which might be set to no for you?– Ulrich Schwarz
Aug 13 '17 at 14:39
Was just looking at it, I edited the post and put it here pastebin.com/XJ9rhak8 looks like onboot is on.
– AdrianP.
Aug 13 '17 at 14:42
Was just looking at it, I edited the post and put it here pastebin.com/XJ9rhak8 looks like onboot is on.
– AdrianP.
Aug 13 '17 at 14:42
add a comment |
1 Answer
1
active
oldest
votes
Renumber the interface numbers by MAC-address. It looks like something goes wrong when givining eno0, eno1 and eno2 an IP address. You can assign another name to a MAC-address by placing a config file i say /etc/udev/rules.d/10-persistent-net-rules. Make a line for each interface with the desired MAC-address en device name (eno0):
SUBSYSTEM=="net", ACTION=="add", DRIVERS=="?*", ATTR{address}=="00:11:22:33:44:55", ATTR{dev_id}=="0x0", ATTR{type}=="1", KERNEL=="eno*", NAME="eno0"
answered Aug 13 '17 at 14:51
hschouhschou
2,196610
Thanks! Would something like this work? pastebin.com/Ltwg6BRV
– AdrianP.
Aug 13 '17 at 14:57
@AdrianP. that would be overkill. you only needudevrules for the actual physical interfaces,eno0,eno1, andeno2. Thebr*,virbr*,docker*etc interfaces are all based on (and defined relative to) the actual NICs (and are generally assigned to the correct parent interface when created by docker or whatever). Also remember that most or all of those bridge interfaces are created dynamically when a container is created and may not be given the same name the next time an instance of that container is started. a udev rule to rename it will just confuse docker.
– cas
Aug 14 '17 at 5:04
add a comment |
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1 Answer
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1 Answer
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oldest
votes
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votes
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votes
Renumber the interface numbers by MAC-address. It looks like something goes wrong when givining eno0, eno1 and eno2 an IP address. You can assign another name to a MAC-address by placing a config file i say /etc/udev/rules.d/10-persistent-net-rules. Make a line for each interface with the desired MAC-address en device name (eno0):
SUBSYSTEM=="net", ACTION=="add", DRIVERS=="?*", ATTR{address}=="00:11:22:33:44:55", ATTR{dev_id}=="0x0", ATTR{type}=="1", KERNEL=="eno*", NAME="eno0"
answered Aug 13 '17 at 14:51
hschouhschou
2,196610
Thanks! Would something like this work? pastebin.com/Ltwg6BRV
– AdrianP.
Aug 13 '17 at 14:57
@AdrianP. that would be overkill. you only needudevrules for the actual physical interfaces,eno0,eno1, andeno2. Thebr*,virbr*,docker*etc interfaces are all based on (and defined relative to) the actual NICs (and are generally assigned to the correct parent interface when created by docker or whatever). Also remember that most or all of those bridge interfaces are created dynamically when a container is created and may not be given the same name the next time an instance of that container is started. a udev rule to rename it will just confuse docker.
– cas
Aug 14 '17 at 5:04
add a comment |
Renumber the interface numbers by MAC-address. It looks like something goes wrong when givining eno0, eno1 and eno2 an IP address. You can assign another name to a MAC-address by placing a config file i say /etc/udev/rules.d/10-persistent-net-rules. Make a line for each interface with the desired MAC-address en device name (eno0):
SUBSYSTEM=="net", ACTION=="add", DRIVERS=="?*", ATTR{address}=="00:11:22:33:44:55", ATTR{dev_id}=="0x0", ATTR{type}=="1", KERNEL=="eno*", NAME="eno0"
answered Aug 13 '17 at 14:51
hschouhschou
2,196610
Thanks! Would something like this work? pastebin.com/Ltwg6BRV
– AdrianP.
Aug 13 '17 at 14:57
@AdrianP. that would be overkill. you only needudevrules for the actual physical interfaces,eno0,eno1, andeno2. Thebr*,virbr*,docker*etc interfaces are all based on (and defined relative to) the actual NICs (and are generally assigned to the correct parent interface when created by docker or whatever). Also remember that most or all of those bridge interfaces are created dynamically when a container is created and may not be given the same name the next time an instance of that container is started. a udev rule to rename it will just confuse docker.
– cas
Aug 14 '17 at 5:04
add a comment |
Renumber the interface numbers by MAC-address. It looks like something goes wrong when givining eno0, eno1 and eno2 an IP address. You can assign another name to a MAC-address by placing a config file i say /etc/udev/rules.d/10-persistent-net-rules. Make a line for each interface with the desired MAC-address en device name (eno0):
SUBSYSTEM=="net", ACTION=="add", DRIVERS=="?*", ATTR{address}=="00:11:22:33:44:55", ATTR{dev_id}=="0x0", ATTR{type}=="1", KERNEL=="eno*", NAME="eno0"
answered Aug 13 '17 at 14:51
hschouhschou
2,196610
Renumber the interface numbers by MAC-address. It looks like something goes wrong when givining eno0, eno1 and eno2 an IP address. You can assign another name to a MAC-address by placing a config file i say /etc/udev/rules.d/10-persistent-net-rules. Make a line for each interface with the desired MAC-address en device name (eno0):
SUBSYSTEM=="net", ACTION=="add", DRIVERS=="?*", ATTR{address}=="00:11:22:33:44:55", ATTR{dev_id}=="0x0", ATTR{type}=="1", KERNEL=="eno*", NAME="eno0"
answered Aug 13 '17 at 14:51
hschouhschou
2,196610
answered Aug 13 '17 at 14:51
hschouhschou
2,196610
answered Aug 13 '17 at 14:51
hschouhschou
2,196610
answered Aug 13 '17 at 14:51
hschouhschou
2,196610
2,196610
Thanks! Would something like this work? pastebin.com/Ltwg6BRV
– AdrianP.
Aug 13 '17 at 14:57
@AdrianP. that would be overkill. you only needudevrules for the actual physical interfaces,eno0,eno1, andeno2. Thebr*,virbr*,docker*etc interfaces are all based on (and defined relative to) the actual NICs (and are generally assigned to the correct parent interface when created by docker or whatever). Also remember that most or all of those bridge interfaces are created dynamically when a container is created and may not be given the same name the next time an instance of that container is started. a udev rule to rename it will just confuse docker.
– cas
Aug 14 '17 at 5:04
add a comment |
Thanks! Would something like this work? pastebin.com/Ltwg6BRV
– AdrianP.
Aug 13 '17 at 14:57
@AdrianP. that would be overkill. you only needudevrules for the actual physical interfaces,eno0,eno1, andeno2. Thebr*,virbr*,docker*etc interfaces are all based on (and defined relative to) the actual NICs (and are generally assigned to the correct parent interface when created by docker or whatever). Also remember that most or all of those bridge interfaces are created dynamically when a container is created and may not be given the same name the next time an instance of that container is started. a udev rule to rename it will just confuse docker.
– cas
Aug 14 '17 at 5:04
Thanks! Would something like this work? pastebin.com/Ltwg6BRV
– AdrianP.
Aug 13 '17 at 14:57
Thanks! Would something like this work? pastebin.com/Ltwg6BRV
– AdrianP.
Aug 13 '17 at 14:57
@AdrianP. that would be overkill. you only need
udev rules for the actual physical interfaces, eno0, eno1, and eno2. The br*, virbr*, docker* etc interfaces are all based on (and defined relative to) the actual NICs (and are generally assigned to the correct parent interface when created by docker or whatever). Also remember that most or all of those bridge interfaces are created dynamically when a container is created and may not be given the same name the next time an instance of that container is started. a udev rule to rename it will just confuse docker.– cas
Aug 14 '17 at 5:04
@AdrianP. that would be overkill. you only need
udev rules for the actual physical interfaces, eno0, eno1, and eno2. The br*, virbr*, docker* etc interfaces are all based on (and defined relative to) the actual NICs (and are generally assigned to the correct parent interface when created by docker or whatever). Also remember that most or all of those bridge interfaces are created dynamically when a container is created and may not be given the same name the next time an instance of that container is started. a udev rule to rename it will just confuse docker.– cas
Aug 14 '17 at 5:04
add a comment |
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Can you add the content of
/etc/sysconfig/network-scripts/ifcfg-eno2? In particular, that should have a lineONBOOT=which might be set tonofor you?– Ulrich Schwarz
Aug 13 '17 at 14:39
Was just looking at it, I edited the post and put it here pastebin.com/XJ9rhak8 looks like onboot is on.
– AdrianP.
Aug 13 '17 at 14:42