Ubuntu 18.04 minimal server has two IP addresses!Second IP via DHCP. Why?ubuntu 18.04: not releasing old IPs from DHCP14.04 no internet connection when I up the bridge interface (for LXC container)Dual NIC not workingCannot find device “eth0”. Failed to bring up eth0Pages loading too long on new router (Ubuntu 18.04)
"traversal failed: u: Bad message" when deleting an extremely large directory in Linux
Make a haystack (with a needle)
How can I sell my shares in a privately-owned company I used to be employed by?
Rational Number RNG
Trying to draw a circle with nodes
What can I use for input conversion instead of scanf?
How can I more clearly ask people to accomodate for my autism?
For a command to increase something, should instructions refer to the "+" key or the "=" key?
My cat gets angry and scared at me if I stand
Can we shutdown a blockchain?
Is it safe to plug one travel adapter into another?
A jazzy one-liner
Why is double encryption that's equivalent to single encryption no better than single encryption?
Does animal blood, esp. human, really have similar salinity as ocean water, and does that prove anything about evolution?
Antonym for “boilerplate” or “cookie-cutter”
Why is more music written in sharp keys than flat keys?
Employer says they want Quality & Quantity, but only pays bonuses based on the latter
Why is a Lockheed MC-130J Commando II creating such a loud droning sound?
Coworkers accusing me of "cheating" for working more efficiently
What elements would be created in a star composed entirely of gold?
Countering an uncounterable spell, triggers, and state-based actions
"Du hast es gut", small talk meaning?
If 120 experts in 12 different fields were sent back 10,000 years, could they recreate the 21 century in 100 years?
What are modes in real world?
Ubuntu 18.04 minimal server has two IP addresses!
Second IP via DHCP. Why?ubuntu 18.04: not releasing old IPs from DHCP14.04 no internet connection when I up the bridge interface (for LXC container)Dual NIC not workingCannot find device “eth0”. Failed to bring up eth0Pages loading too long on new router (Ubuntu 18.04)
.everyoneloves__top-leaderboard:empty,.everyoneloves__mid-leaderboard:empty,.everyoneloves__bot-mid-leaderboard:empty
margin-bottom:0;
2
I'm seeing two different IP addresses on my Odroid XU4. I only noticed after I set up a Unifi controller on the box, but then tried to ssh into both of the addresses with success. I only want 192.168.2.3, and no IPv6.
mike@odroid:~$ ip addr show
1: lo: mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1000
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: eth0: mtu 1500 qdisc fq_codel state UP group default qlen 1000
link/ether 00:1e:06:30:1e:f5 brd ff:ff:ff:ff:ff:ff
inet 192.168.2.3/24 brd 192.168.2.255 scope global dynamic noprefixroute eth0
valid_lft 3069558340sec preferred_lft 3069558340sec
inet 192.168.2.9/24 brd 192.168.2.255 scope global secondary eth0
valid_lft forever preferred_lft forever
mike@odroid:~$ ifconfig
eth0: flags=4163 mtu 1500
inet 192.168.2.3 netmask 255.255.255.0 broadcast 192.168.2.255
ether 00:1e:06:30:1e:f5 txqueuelen 1000 (Ethernet)
RX packets 12821 bytes 2393432 (2.3 MB)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 13336 bytes 9323830 (9.3 MB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
lo: flags=73 mtu 65536
inet 127.0.0.1 netmask 255.0.0.0
inet6 ::1 prefixlen 128 scopeid 0x10
loop txqueuelen 1000 (Local Loopback)
RX packets 10593 bytes 4855090 (4.8 MB)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 10593 bytes 4855090 (4.8 MB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0As we can see here eth0 has two IP address and is only shown by ip command and not by ifconfig. I am unable to understand where this is coming from or how to disable the 2nd IP permanently. I would like to get rid of the 2nd IP address permanently.
mike@odroid:~$ cat /etc/network/interfaces
# interfaces(5) file used by ifup(8) and ifdown(8)
# Include files from /etc/network/interfaces.d:
source-directory /etc/network/interfaces.d
mike@odroid:~$ cat /etc/netplan/*.yaml
cat: '/etc/netplan/*.yaml': No such file or directory
networking server ethernet dhcp
edited Aug 23 '18 at 14:24
Melebius
7,4275 gold badges29 silver badges54 bronze badges
asked Aug 17 '18 at 18:36
Mike TarboxMike Tarbox
114 bronze badges
|
show 5 more comments
2
I'm seeing two different IP addresses on my Odroid XU4. I only noticed after I set up a Unifi controller on the box, but then tried to ssh into both of the addresses with success. I only want 192.168.2.3, and no IPv6.
mike@odroid:~$ ip addr show
1: lo: mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1000
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: eth0: mtu 1500 qdisc fq_codel state UP group default qlen 1000
link/ether 00:1e:06:30:1e:f5 brd ff:ff:ff:ff:ff:ff
inet 192.168.2.3/24 brd 192.168.2.255 scope global dynamic noprefixroute eth0
valid_lft 3069558340sec preferred_lft 3069558340sec
inet 192.168.2.9/24 brd 192.168.2.255 scope global secondary eth0
valid_lft forever preferred_lft forever
mike@odroid:~$ ifconfig
eth0: flags=4163 mtu 1500
inet 192.168.2.3 netmask 255.255.255.0 broadcast 192.168.2.255
ether 00:1e:06:30:1e:f5 txqueuelen 1000 (Ethernet)
RX packets 12821 bytes 2393432 (2.3 MB)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 13336 bytes 9323830 (9.3 MB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
lo: flags=73 mtu 65536
inet 127.0.0.1 netmask 255.0.0.0
inet6 ::1 prefixlen 128 scopeid 0x10
loop txqueuelen 1000 (Local Loopback)
RX packets 10593 bytes 4855090 (4.8 MB)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 10593 bytes 4855090 (4.8 MB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0As we can see here eth0 has two IP address and is only shown by ip command and not by ifconfig. I am unable to understand where this is coming from or how to disable the 2nd IP permanently. I would like to get rid of the 2nd IP address permanently.
mike@odroid:~$ cat /etc/network/interfaces
# interfaces(5) file used by ifup(8) and ifdown(8)
# Include files from /etc/network/interfaces.d:
source-directory /etc/network/interfaces.d
mike@odroid:~$ cat /etc/netplan/*.yaml
cat: '/etc/netplan/*.yaml': No such file or directory
networking server ethernet dhcp
edited Aug 23 '18 at 14:24
Melebius
7,4275 gold badges29 silver badges54 bronze badges
asked Aug 17 '18 at 18:36
Mike TarboxMike Tarbox
114 bronze badges
eth0 seems unusual for an interface in 18.04. Please edit your question to add the result of the terminal commands:cat /etc/network/interfacesand also:cat /etc/netplan/*.yamlWelcome to Ask Ubuntu.
– chili555
Aug 17 '18 at 20:14
mike@odroid:~$ cat /etc/network/interfaces # interfaces(5) file used by ifup(8) and ifdown(8) # Include files from /etc/network/interfaces.d: source-directory /etc/network/interfaces.d
– Mike Tarbox
Aug 23 '18 at 13:48
mike@odroid:~$ cat /etc/netplan/*.yaml cat: '/etc/netplan/*.yaml': No such file or directory
– Mike Tarbox
Aug 23 '18 at 13:49
2
Are you 100% certain this is Ubuntu 18.04? What's the output oflsb_release -a(to confirm the version of Ubuntu you're using)? Have you checked/etc/network/interfaces.d/for any configuration items there that might be the network config?
– Thomas Ward♦
Aug 23 '18 at 14:17
mike@odroid:~$ lsb_release -a No LSB modules are available. Distributor ID: Ubuntu Description: Ubuntu 18.04.1 LTS Release: 18.04 Codename: bionic
– Mike Tarbox
Aug 23 '18 at 14:25
|
show 5 more comments
2
2
2
I'm seeing two different IP addresses on my Odroid XU4. I only noticed after I set up a Unifi controller on the box, but then tried to ssh into both of the addresses with success. I only want 192.168.2.3, and no IPv6.
mike@odroid:~$ ip addr show
1: lo: mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1000
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: eth0: mtu 1500 qdisc fq_codel state UP group default qlen 1000
link/ether 00:1e:06:30:1e:f5 brd ff:ff:ff:ff:ff:ff
inet 192.168.2.3/24 brd 192.168.2.255 scope global dynamic noprefixroute eth0
valid_lft 3069558340sec preferred_lft 3069558340sec
inet 192.168.2.9/24 brd 192.168.2.255 scope global secondary eth0
valid_lft forever preferred_lft forever
mike@odroid:~$ ifconfig
eth0: flags=4163 mtu 1500
inet 192.168.2.3 netmask 255.255.255.0 broadcast 192.168.2.255
ether 00:1e:06:30:1e:f5 txqueuelen 1000 (Ethernet)
RX packets 12821 bytes 2393432 (2.3 MB)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 13336 bytes 9323830 (9.3 MB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
lo: flags=73 mtu 65536
inet 127.0.0.1 netmask 255.0.0.0
inet6 ::1 prefixlen 128 scopeid 0x10
loop txqueuelen 1000 (Local Loopback)
RX packets 10593 bytes 4855090 (4.8 MB)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 10593 bytes 4855090 (4.8 MB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0As we can see here eth0 has two IP address and is only shown by ip command and not by ifconfig. I am unable to understand where this is coming from or how to disable the 2nd IP permanently. I would like to get rid of the 2nd IP address permanently.
mike@odroid:~$ cat /etc/network/interfaces
# interfaces(5) file used by ifup(8) and ifdown(8)
# Include files from /etc/network/interfaces.d:
source-directory /etc/network/interfaces.d
mike@odroid:~$ cat /etc/netplan/*.yaml
cat: '/etc/netplan/*.yaml': No such file or directory
networking server ethernet dhcp
edited Aug 23 '18 at 14:24
Melebius
7,4275 gold badges29 silver badges54 bronze badges
asked Aug 17 '18 at 18:36
Mike TarboxMike Tarbox
114 bronze badges
I'm seeing two different IP addresses on my Odroid XU4. I only noticed after I set up a Unifi controller on the box, but then tried to ssh into both of the addresses with success. I only want 192.168.2.3, and no IPv6.
mike@odroid:~$ ip addr show
1: lo: mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1000
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: eth0: mtu 1500 qdisc fq_codel state UP group default qlen 1000
link/ether 00:1e:06:30:1e:f5 brd ff:ff:ff:ff:ff:ff
inet 192.168.2.3/24 brd 192.168.2.255 scope global dynamic noprefixroute eth0
valid_lft 3069558340sec preferred_lft 3069558340sec
inet 192.168.2.9/24 brd 192.168.2.255 scope global secondary eth0
valid_lft forever preferred_lft forever
mike@odroid:~$ ifconfig
eth0: flags=4163 mtu 1500
inet 192.168.2.3 netmask 255.255.255.0 broadcast 192.168.2.255
ether 00:1e:06:30:1e:f5 txqueuelen 1000 (Ethernet)
RX packets 12821 bytes 2393432 (2.3 MB)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 13336 bytes 9323830 (9.3 MB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
lo: flags=73 mtu 65536
inet 127.0.0.1 netmask 255.0.0.0
inet6 ::1 prefixlen 128 scopeid 0x10
loop txqueuelen 1000 (Local Loopback)
RX packets 10593 bytes 4855090 (4.8 MB)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 10593 bytes 4855090 (4.8 MB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0As we can see here eth0 has two IP address and is only shown by ip command and not by ifconfig. I am unable to understand where this is coming from or how to disable the 2nd IP permanently. I would like to get rid of the 2nd IP address permanently.
mike@odroid:~$ cat /etc/network/interfaces
# interfaces(5) file used by ifup(8) and ifdown(8)
# Include files from /etc/network/interfaces.d:
source-directory /etc/network/interfaces.d
mike@odroid:~$ cat /etc/netplan/*.yaml
cat: '/etc/netplan/*.yaml': No such file or directory
networking server ethernet dhcp
networking server ethernet dhcp
edited Aug 23 '18 at 14:24
Melebius
7,4275 gold badges29 silver badges54 bronze badges
asked Aug 17 '18 at 18:36
Mike TarboxMike Tarbox
114 bronze badges
edited Aug 23 '18 at 14:24
Melebius
7,4275 gold badges29 silver badges54 bronze badges
asked Aug 17 '18 at 18:36
Mike TarboxMike Tarbox
114 bronze badges
edited Aug 23 '18 at 14:24
Melebius
7,4275 gold badges29 silver badges54 bronze badges
edited Aug 23 '18 at 14:24
Melebius
7,4275 gold badges29 silver badges54 bronze badges
edited Aug 23 '18 at 14:24
Melebius
7,4275 gold badges29 silver badges54 bronze badges
7,4275 gold badges29 silver badges54 bronze badges
asked Aug 17 '18 at 18:36
Mike TarboxMike Tarbox
114 bronze badges
asked Aug 17 '18 at 18:36
Mike TarboxMike Tarbox
114 bronze badges
asked Aug 17 '18 at 18:36
Mike TarboxMike Tarbox
114 bronze badges
114 bronze badges
eth0 seems unusual for an interface in 18.04. Please edit your question to add the result of the terminal commands:cat /etc/network/interfacesand also:cat /etc/netplan/*.yamlWelcome to Ask Ubuntu.
– chili555
Aug 17 '18 at 20:14
mike@odroid:~$ cat /etc/network/interfaces # interfaces(5) file used by ifup(8) and ifdown(8) # Include files from /etc/network/interfaces.d: source-directory /etc/network/interfaces.d
– Mike Tarbox
Aug 23 '18 at 13:48
mike@odroid:~$ cat /etc/netplan/*.yaml cat: '/etc/netplan/*.yaml': No such file or directory
– Mike Tarbox
Aug 23 '18 at 13:49
2
Are you 100% certain this is Ubuntu 18.04? What's the output oflsb_release -a(to confirm the version of Ubuntu you're using)? Have you checked/etc/network/interfaces.d/for any configuration items there that might be the network config?
– Thomas Ward♦
Aug 23 '18 at 14:17
mike@odroid:~$ lsb_release -a No LSB modules are available. Distributor ID: Ubuntu Description: Ubuntu 18.04.1 LTS Release: 18.04 Codename: bionic
– Mike Tarbox
Aug 23 '18 at 14:25
|
show 5 more comments
eth0 seems unusual for an interface in 18.04. Please edit your question to add the result of the terminal commands:cat /etc/network/interfacesand also:cat /etc/netplan/*.yamlWelcome to Ask Ubuntu.
– chili555
Aug 17 '18 at 20:14
mike@odroid:~$ cat /etc/network/interfaces # interfaces(5) file used by ifup(8) and ifdown(8) # Include files from /etc/network/interfaces.d: source-directory /etc/network/interfaces.d
– Mike Tarbox
Aug 23 '18 at 13:48
mike@odroid:~$ cat /etc/netplan/*.yaml cat: '/etc/netplan/*.yaml': No such file or directory
– Mike Tarbox
Aug 23 '18 at 13:49
2
Are you 100% certain this is Ubuntu 18.04? What's the output oflsb_release -a(to confirm the version of Ubuntu you're using)? Have you checked/etc/network/interfaces.d/for any configuration items there that might be the network config?
– Thomas Ward♦
Aug 23 '18 at 14:17
mike@odroid:~$ lsb_release -a No LSB modules are available. Distributor ID: Ubuntu Description: Ubuntu 18.04.1 LTS Release: 18.04 Codename: bionic
– Mike Tarbox
Aug 23 '18 at 14:25
eth0 seems unusual for an interface in 18.04. Please edit your question to add the result of the terminal commands:
cat /etc/network/interfaces and also: cat /etc/netplan/*.yaml Welcome to Ask Ubuntu.– chili555
Aug 17 '18 at 20:14
eth0 seems unusual for an interface in 18.04. Please edit your question to add the result of the terminal commands:
cat /etc/network/interfaces and also: cat /etc/netplan/*.yaml Welcome to Ask Ubuntu.– chili555
Aug 17 '18 at 20:14
mike@odroid:~$ cat /etc/network/interfaces # interfaces(5) file used by ifup(8) and ifdown(8) # Include files from /etc/network/interfaces.d: source-directory /etc/network/interfaces.d
– Mike Tarbox
Aug 23 '18 at 13:48
mike@odroid:~$ cat /etc/network/interfaces # interfaces(5) file used by ifup(8) and ifdown(8) # Include files from /etc/network/interfaces.d: source-directory /etc/network/interfaces.d
– Mike Tarbox
Aug 23 '18 at 13:48
mike@odroid:~$ cat /etc/netplan/*.yaml cat: '/etc/netplan/*.yaml': No such file or directory
– Mike Tarbox
Aug 23 '18 at 13:49
mike@odroid:~$ cat /etc/netplan/*.yaml cat: '/etc/netplan/*.yaml': No such file or directory
– Mike Tarbox
Aug 23 '18 at 13:49
2
2
Are you 100% certain this is Ubuntu 18.04? What's the output of
lsb_release -a (to confirm the version of Ubuntu you're using)? Have you checked /etc/network/interfaces.d/ for any configuration items there that might be the network config?– Thomas Ward♦
Aug 23 '18 at 14:17
Are you 100% certain this is Ubuntu 18.04? What's the output of
lsb_release -a (to confirm the version of Ubuntu you're using)? Have you checked /etc/network/interfaces.d/ for any configuration items there that might be the network config?– Thomas Ward♦
Aug 23 '18 at 14:17
mike@odroid:~$ lsb_release -a No LSB modules are available. Distributor ID: Ubuntu Description: Ubuntu 18.04.1 LTS Release: 18.04 Codename: bionic
– Mike Tarbox
Aug 23 '18 at 14:25
mike@odroid:~$ lsb_release -a No LSB modules are available. Distributor ID: Ubuntu Description: Ubuntu 18.04.1 LTS Release: 18.04 Codename: bionic
– Mike Tarbox
Aug 23 '18 at 14:25
|
show 5 more comments
1 Answer
1
active
oldest
votes
2
I have struggled with this exact same problem and every search comes up with several others experiencing the same issue with no resolution.
FINALLY, here is what solved it for me:
ip addr flush dev <your_adapter_id>
for me it was
ip addr flush dev enp0s4
This kills the secondary IP.
answered May 30 at 3:25
Zach ToundasZach Toundas
212 bronze badges
I suspect this issue may be due to previous failed dhcp lease not being released by the system, hence why flushing config works. Since this post is unlikely to be revisited by OP to confirm +1ed this post for effort to resolve and for providing what appears to be appropriate solution
– Sergiy Kolodyazhnyy
May 30 at 4:57
Actually I did log in to see the response. I ended up switching over to 16.04. I was using the odroid to run pi-hole, or at least attempting to. I ended up using the odroid to run my unifi controller instead.
– Mike Tarbox
May 31 at 23:41
add a comment
|
Your Answer
StackExchange.ready(function()
var channelOptions =
tags: "".split(" "),
id: "89"
;
initTagRenderer("".split(" "), "".split(" "), channelOptions);
StackExchange.using("externalEditor", function()
// Have to fire editor after snippets, if snippets enabled
if (StackExchange.settings.snippets.snippetsEnabled)
StackExchange.using("snippets", function()
createEditor();
);
else
createEditor();
);
function createEditor()
StackExchange.prepareEditor(
heartbeatType: 'answer',
autoActivateHeartbeat: false,
convertImagesToLinks: true,
noModals: true,
showLowRepImageUploadWarning: true,
reputationToPostImages: 10,
bindNavPrevention: true,
postfix: "",
imageUploader:
brandingHtml: "Powered by u003ca class="icon-imgur-white" href="https://imgur.com/"u003eu003c/au003e",
contentPolicyHtml: "User contributions licensed under u003ca href="https://creativecommons.org/licenses/by-sa/4.0/"u003ecc by-sa 4.0 with attribution requiredu003c/au003e u003ca href="https://stackoverflow.com/legal/content-policy"u003e(content policy)u003c/au003e",
allowUrls: true
,
onDemand: true,
discardSelector: ".discard-answer"
,immediatelyShowMarkdownHelp:true
);
);
draft saved
draft discarded
Sign up or log in
StackExchange.ready(function ()
StackExchange.helpers.onClickDraftSave('#login-link');
);
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
StackExchange.ready(
function ()
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2faskubuntu.com%2fquestions%2f1066357%2fubuntu-18-04-minimal-server-has-two-ip-addresses%23new-answer', 'question_page');
);
Post as a guest
Required, but never shown
1 Answer
1
active
oldest
votes
1 Answer
1
active
oldest
votes
active
oldest
votes
active
oldest
votes
2
I have struggled with this exact same problem and every search comes up with several others experiencing the same issue with no resolution.
FINALLY, here is what solved it for me:
ip addr flush dev <your_adapter_id>
for me it was
ip addr flush dev enp0s4
This kills the secondary IP.
answered May 30 at 3:25
Zach ToundasZach Toundas
212 bronze badges
I suspect this issue may be due to previous failed dhcp lease not being released by the system, hence why flushing config works. Since this post is unlikely to be revisited by OP to confirm +1ed this post for effort to resolve and for providing what appears to be appropriate solution
– Sergiy Kolodyazhnyy
May 30 at 4:57
Actually I did log in to see the response. I ended up switching over to 16.04. I was using the odroid to run pi-hole, or at least attempting to. I ended up using the odroid to run my unifi controller instead.
– Mike Tarbox
May 31 at 23:41
add a comment
|
2
I have struggled with this exact same problem and every search comes up with several others experiencing the same issue with no resolution.
FINALLY, here is what solved it for me:
ip addr flush dev <your_adapter_id>
for me it was
ip addr flush dev enp0s4
This kills the secondary IP.
answered May 30 at 3:25
Zach ToundasZach Toundas
212 bronze badges
I suspect this issue may be due to previous failed dhcp lease not being released by the system, hence why flushing config works. Since this post is unlikely to be revisited by OP to confirm +1ed this post for effort to resolve and for providing what appears to be appropriate solution
– Sergiy Kolodyazhnyy
May 30 at 4:57
Actually I did log in to see the response. I ended up switching over to 16.04. I was using the odroid to run pi-hole, or at least attempting to. I ended up using the odroid to run my unifi controller instead.
– Mike Tarbox
May 31 at 23:41
add a comment
|
2
2
2
I have struggled with this exact same problem and every search comes up with several others experiencing the same issue with no resolution.
FINALLY, here is what solved it for me:
ip addr flush dev <your_adapter_id>
for me it was
ip addr flush dev enp0s4
This kills the secondary IP.
answered May 30 at 3:25
Zach ToundasZach Toundas
212 bronze badges
I have struggled with this exact same problem and every search comes up with several others experiencing the same issue with no resolution.
FINALLY, here is what solved it for me:
ip addr flush dev <your_adapter_id>
for me it was
ip addr flush dev enp0s4
This kills the secondary IP.
answered May 30 at 3:25
Zach ToundasZach Toundas
212 bronze badges
answered May 30 at 3:25
Zach ToundasZach Toundas
212 bronze badges
answered May 30 at 3:25
Zach ToundasZach Toundas
212 bronze badges
answered May 30 at 3:25
Zach ToundasZach Toundas
212 bronze badges
212 bronze badges
I suspect this issue may be due to previous failed dhcp lease not being released by the system, hence why flushing config works. Since this post is unlikely to be revisited by OP to confirm +1ed this post for effort to resolve and for providing what appears to be appropriate solution
– Sergiy Kolodyazhnyy
May 30 at 4:57
Actually I did log in to see the response. I ended up switching over to 16.04. I was using the odroid to run pi-hole, or at least attempting to. I ended up using the odroid to run my unifi controller instead.
– Mike Tarbox
May 31 at 23:41
add a comment
|
I suspect this issue may be due to previous failed dhcp lease not being released by the system, hence why flushing config works. Since this post is unlikely to be revisited by OP to confirm +1ed this post for effort to resolve and for providing what appears to be appropriate solution
– Sergiy Kolodyazhnyy
May 30 at 4:57
Actually I did log in to see the response. I ended up switching over to 16.04. I was using the odroid to run pi-hole, or at least attempting to. I ended up using the odroid to run my unifi controller instead.
– Mike Tarbox
May 31 at 23:41
I suspect this issue may be due to previous failed dhcp lease not being released by the system, hence why flushing config works. Since this post is unlikely to be revisited by OP to confirm +1ed this post for effort to resolve and for providing what appears to be appropriate solution
– Sergiy Kolodyazhnyy
May 30 at 4:57
I suspect this issue may be due to previous failed dhcp lease not being released by the system, hence why flushing config works. Since this post is unlikely to be revisited by OP to confirm +1ed this post for effort to resolve and for providing what appears to be appropriate solution
– Sergiy Kolodyazhnyy
May 30 at 4:57
Actually I did log in to see the response. I ended up switching over to 16.04. I was using the odroid to run pi-hole, or at least attempting to. I ended up using the odroid to run my unifi controller instead.
– Mike Tarbox
May 31 at 23:41
Actually I did log in to see the response. I ended up switching over to 16.04. I was using the odroid to run pi-hole, or at least attempting to. I ended up using the odroid to run my unifi controller instead.
– Mike Tarbox
May 31 at 23:41
add a comment
|
draft saved
draft discarded
Thanks for contributing an answer to Ask Ubuntu!
- Please be sure to answer the question. Provide details and share your research!
But avoid …
- Asking for help, clarification, or responding to other answers.
- Making statements based on opinion; back them up with references or personal experience.
To learn more, see our tips on writing great answers.
draft saved
draft discarded
Sign up or log in
StackExchange.ready(function ()
StackExchange.helpers.onClickDraftSave('#login-link');
);
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
StackExchange.ready(
function ()
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2faskubuntu.com%2fquestions%2f1066357%2fubuntu-18-04-minimal-server-has-two-ip-addresses%23new-answer', 'question_page');
);
Post as a guest
Required, but never shown
Sign up or log in
StackExchange.ready(function ()
StackExchange.helpers.onClickDraftSave('#login-link');
);
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
Sign up or log in
StackExchange.ready(function ()
StackExchange.helpers.onClickDraftSave('#login-link');
);
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
Sign up or log in
StackExchange.ready(function ()
StackExchange.helpers.onClickDraftSave('#login-link');
);
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
eth0 seems unusual for an interface in 18.04. Please edit your question to add the result of the terminal commands:
cat /etc/network/interfacesand also:cat /etc/netplan/*.yamlWelcome to Ask Ubuntu.– chili555
Aug 17 '18 at 20:14
mike@odroid:~$ cat /etc/network/interfaces # interfaces(5) file used by ifup(8) and ifdown(8) # Include files from /etc/network/interfaces.d: source-directory /etc/network/interfaces.d
– Mike Tarbox
Aug 23 '18 at 13:48
mike@odroid:~$ cat /etc/netplan/*.yaml cat: '/etc/netplan/*.yaml': No such file or directory
– Mike Tarbox
Aug 23 '18 at 13:49
2
Are you 100% certain this is Ubuntu 18.04? What's the output of
lsb_release -a(to confirm the version of Ubuntu you're using)? Have you checked/etc/network/interfaces.d/for any configuration items there that might be the network config?– Thomas Ward♦
Aug 23 '18 at 14:17
mike@odroid:~$ lsb_release -a No LSB modules are available. Distributor ID: Ubuntu Description: Ubuntu 18.04.1 LTS Release: 18.04 Codename: bionic
– Mike Tarbox
Aug 23 '18 at 14:25