I know you can do ifconfig | grep inet
, but that shows you several IPv4 addresses. How do I get the specific one for SSHing et al?
-
1What you are looking for is not your Mac IP address but the public IP address your ISP attributed to the Internet interface of your router.– danFeb 12, 2019 at 11:26
-
3This worked for me : > curl ipecho.net/plain; echo– alturiumJun 18, 2020 at 17:37
-
4You should either clarify your question, i.e. you want to know internal IP in your local network or change the accepted answer, because none of the answers give you an option to get an external IP, but a few comments do.– ruslanivDec 4, 2020 at 7:15
-
1@JShoe, can you confirm whether you wanted the internal or external IP address? That would help make this all of the answers below clearer: some show you how to get internal addresses, while others show external.– Mike WilliamsonMar 8, 2021 at 17:01
-
3osascript -e 'return IPv4 address of (get system info)'– CarstenJun 9, 2022 at 8:03
9 Answers
Local IP address
For wireless: Use ipconfig getifaddr en1
For ethernet: Useipconfig getifaddr en0
.
ipconfig getifaddr en0
is default for the Wi-Fi network adapter
Public IP address
dig -4 TXT +short o-o.myaddr.l.google.com @ns1.google.com
Output, e.g.:
172.79.136.120
Command explanation
The command you provided, dig -4 TXT +short o-o.myaddr.l.google.com @ns1.google.com
, is a command-line instruction that uses the dig
utility to perform a DNS (Domain Name System) lookup. Let's break down the components of the command:
dig
:dig
stands for "domain information groper," and it is a command-line tool commonly available on Unix-like systems for querying DNS servers.-4
: This option specifies that the command should use IPv4 protocol for the DNS lookup. It ensures that the query is sent using IPv4 instead of IPv6.TXT
: This indicates the type of DNS record being requested. In this case, the command is asking for the TXT record.+short
: This option is used to display only the relevant information from the DNS response, providing a concise output.o-o.myaddr.l.google.com
: This is the hostname used for the DNS lookup. It is a special hostname that Google uses to provide information about the IP address from which the DNS query originates.@ns1.google.com
: This specifies the DNS server to which the query is sent. In this case, it is set tons1.google.com
, which is one of Google's public DNS servers.
When you run this command, it queries the ns1.google.com
DNS server for the TXT record associated with o-o.myaddr.l.google.com
. The response will contain the TXT record, which typically includes information about the IP address of the client making the DNS query. The +short
option ensures that only the relevant information is displayed, making it easier to read the output.
-
22This shows my internal (to my router) IP address (e.g. 192.168.1.xxx), not the external IP address. (As do most of the other answers below.) May 5, 2015 at 22:38
-
7
-
18echo External IP:
curl -s http://checkip.dyndns.org/ | sed 's/[a-zA-Z<>/ :]//g'
– grigbAug 16, 2016 at 17:51 -
52It has changed for years, 'ipconfig getifaddr en0' is default for wifi interface Jan 31, 2017 at 16:35
-
6when you don't know which interface you're on:
ifconfig -l | xargs -n1 ipconfig getifaddr
– epylinknApr 6, 2020 at 8:14
The following works for me on 10.8 and on 10.10 Yosemite.
ifconfig | grep "inet " | grep -Fv 127.0.0.1 | awk '{print $2}'
If you find the above gives you more than one answer, save the following to a script, and run it instead
ip_address.sh
#!/usr/bin/env bash
dumpIpForInterface()
{
IT=$(ifconfig "$1")
if [[ "$IT" != *"status: active"* ]]; then
return
fi
if [[ "$IT" != *" broadcast "* ]]; then
return
fi
echo "$IT" | grep "inet " | grep -v 127.0.0.1 | awk '{print $2}'
}
main()
{
# snagged from here: https://superuser.com/a/627581/38941
DEFAULT_ROUTE=$(route -n get 0.0.0.0 2>/dev/null | awk '/interface: / {print $2}')
if [ -n "$DEFAULT_ROUTE" ]; then
dumpIpForInterface "$DEFAULT_ROUTE"
else
for i in $(ifconfig -s | awk '{print $1}' | awk '{if(NR>1)print}')
do
if [[ $i != *"vboxnet"* ]]; then
dumpIpForInterface "$i"
fi
done
fi
}
main
-
8The should be the accepted answer in my opinion since it doesn't require any wired vs. wireless specification. Jun 13, 2017 at 15:14
-
-
-
1Can confirm this solution works great. I have multiple interfaces all with valid local IPs, but this solution properly returns the IP for the primary interface (that is, the interface used to route traffic to the wider net)– ChrisOct 19, 2020 at 21:20
-
1
I've got this set up in an .aliases dotfile for frequent ip lookup:
alias ip="dig +short myip.opendns.com @resolver1.opendns.com"
alias localip="ipconfig getifaddr en0"
-
For me, the localip option there doesn't work anymore, but this does:
ifconfig | grep "inet " | grep -Fv 127.0.0.1 | awk '{print $2}'
– BarryFeb 10, 2021 at 17:51 -
This is the best answer: While
dig
does reach outside of your machine, it is a domain name resolver, which means its main function is precisely to match domain name to IP address. In this case, it is your own IP address, of course. Mar 8, 2021 at 16:58 -
the ip alias doesn't seem to be working (I'm on OSX Catalina). This one does:
curl -s http://ipecho.net/plain; echo
– jnaklaasJul 12, 2021 at 14:45 -
Running the dig command on macOS Monterey produces no output. Running the curl -s command does seem to work. Mar 13 at 23:20
You can do the following:
Type ifconfig
or ifconfig -a
. This command shows you the list of interfaces along with their IP and MAC addresses (the latter one only if applicable). You can also type ifconfig en0
or ifconfig en1
for the configuration of a particular interface only (as someone said in their answers, en0 is typically the wired Ethernet while en1 is the WiFi interface).
As an alternative, netstat -i
will list all interfaces and will show you the IP addresses you have assigned to each of them.
Typically, when you have SSH daemon running on a box, it will listen on all available interfaces, ie. you can use any IP address that's configured on your machine to connect to that machine via SSH (this, obviously, subject to Firewall rules). If you're after what the OS calls a Primary interface and primary IP address, you can use the scutil
command like this:
MacBook:~ scutil
> show State:/Network/Global/IPv4
<dictionary> {
PrimaryInterface : en0
PrimaryService : C0550F84-5C07-484F-8D62-C8B90DC977D8
Router : 10.103.4.1
}
> show State:/Network/Interface/en0/IPv4
<dictionary> {
Addresses : <array> {
0 : 10.103.4.234
}
BroadcastAddresses : <array> {
0 : 10.103.4.255
}
SubnetMasks : <array> {
0 : 255.255.255.0
}
}
Please note, that the above, even though is a command-line command, is also interactive (so you run scutil
and then enter its own commands into it). The first show
command tells you the name of the primary interface for the OS (i.e. this will be the one on top of the list in your System Preferences / Network Preferences window), as well as the IP address of your default router. The second show
command takes State:/Network/Interface/<ifname>/IPv4
argument (in this case, en0
) and gives you the IP addresses assigned to it. You're looking for the address in the Addresses array, the other two entries are broadcast addresses and the netmasks.
Hope that helps, but if anything is not clear, let me know.
-
3Thanks for this answer. I wrote a quick script to get the IP your primary interface:
echo "show State:/Network/Interface/$(echo 'show State:/Network/Global/IPv4' | scutil | grep 'PrimaryInterface ' | sed 's/ PrimaryInterface : //')/IPv4" | scutil | pcregrep -Mo1 " Addresses : <array> {\n 0 : ([0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3})"
– HellaMadJan 14, 2015 at 19:09
To find your Mac's current internal IP address, run:
ifconfig -l | xargs -n1 ipconfig getifaddr
This is basically equivalent to ipconfig getifaddr en0
, but more reliable! en0
is not always the current network interface!
Thank you to @epylinkn in the comments of another answer for this hint. I'm posting it here so it's more visible; I initially missed it myself.
To get the IP address of your computer facing the Internet, here is a working receipe:
if=`netstat -nr | awk '{ if ($1 ~/default/) { print $6} }'`
ifconfig ${if} | awk '{ if ($1 ~/inet/) { print $2} }'
It should work even when you have multiple interfaces active, even when you have interfaces you don't know which one is actually the default gateway.
-
1This gets the internal network IP address (eg:
192.168.0.*)
, not the external one exposed to the internet.– SimplGyApr 30, 2015 at 5:30 -
Thank you for this feedback. Could you tell me on which version of the OS you are? Could you provide me the output of
netstat -nr | grep default
?– danApr 30, 2015 at 6:39 -
This gets the IP of the interface that serves in/outbound traffic. If you're behind NAT, that will give your LAN address, not WAN address. But it can be useful for a lot of purposes, and it doesn't reach out for network.– folexJan 11, 2019 at 11:25
Just for the record, you can make a bash script with the following content which gives you your external IP address
#!/bin/bash
wget -qO - http://ipecho.net/plain; echo
-
4By default
wget
is not a part of macOS and needs to be installed from a non-Apple source. Jan 7, 2019 at 9:39 -
Is the question macOS specific ? it is by default installed on many linux distributions. Jan 7, 2019 at 19:56
-
4This site is about Apple hardware and software, so macOS and iOS is presumed.– grg ♦Jan 7, 2019 at 20:47
-
4The default macOS command for this would be by using curl:
curl -s http://ipecho.net/plain; echo
– thibmaekFeb 11, 2019 at 10:32
This answer work on both mac and linux:
ifconfig | grep -E "([0-9]{1,3}\.){3}[0-9]{1,3}" | grep -v 127.0.0.1 | head -1 | awk '{ print $2 }'