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@tensorfields
Created January 3, 2013 22:02
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Get a KVM guest's IP address
#!/bin/bash
# Returns the IP address of a running KVM guest VM
# Assumes a working KVM/libvirt environment
#
# Install:
# Add this bash function to your ~/.bashrc and `source ~/.bashrc`.
# Usage:
# $ virt-addr vm-name
# 192.0.2.16
#
virt-addr() {
VM="$1"
arp -an | grep "`virsh dumpxml $VM | grep "mac address" | sed "s/.*'\(.*\)'.*/\1/g"`" | awk '{ gsub(/[\(\)]/,"",$2); print $2 }'
}
@elico
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elico commented Jul 18, 2018

@mistofvongola and the others.
If you have qmeu-agent installed on the guest machine you can user virsh to fetch the details directly from the VM using virsh.
Example commad: virsh domifaddr Squid-4.1-CentOS-Testing --source agent --full (the --source agent flag is important)

[root@kvm4 ~]# virsh list
 Id    Name                           State
----------------------------------------------------
 1     KVM4-MANAGER                   running
 2     Fast-Windows-10                running
 3     CHR-LAB-CLIENT1                running
 4     CHR-LAB-PX3                    running
 5     CHR-LAB-SERVER1                running
 6     CHR-R1                         running
 7     Squid-4.1-CentOS-Testing       running

[root@kvm4 ~]# virsh domifaddr Squid-4.1-CentOS-Testing --source agent --full
Name       MAC address          Protocol     Address
-------------------------------------------------------------------------------
 lo         00:00:00:00:00:00    ipv4         127.0.0.1/8
 lo         00:00:00:00:00:00    ipv6         ::1/128
 eth0       52:54:00:7e:7f:29    ipv4         192.168.89.59/24
 eth0       52:54:00:7e:7f:29    ipv6         fe80::125d:b868:7bf7:11f0/64
 eth1       52:54:00:18:05:6b    N/A          N/A
 eth2       52:54:00:fd:79:85    N/A          N/A
 eth3       52:54:00:cc:ac:c8    N/A          N/A

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