What is 192.168.122.1

Why does this IP address show up in my IP list in ISPConfig and how did it get there? I never configured it.

Code:

[root@ns1 ~]# ifconfig 
eth0      Link encap:Ethernet  HWaddr 00:13:D3:5F:B2:D3  
          inet addr:192.168.1.150  Bcast:192.168.1.255  Mask:255.255.255.0
          inet6 addr: fe80::213:d3ff:fe5f:b2d3/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:273725 errors:0 dropped:0 overruns:0 frame:0
          TX packets:147921 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000 
          RX bytes:386272107 (368.3 MiB)  TX bytes:10472157 (9.9 MiB)
          Interrupt:19 Base address:0xe000 

lo        Link encap:Local Loopback  
          inet addr:127.0.0.1  Mask:255.0.0.0
          inet6 addr: ::1/128 Scope:Host
          UP LOOPBACK RUNNING  MTU:16436  Metric:1
          RX packets:3819 errors:0 dropped:0 overruns:0 frame:0
          TX packets:3819 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0 
          RX bytes:2707205 (2.5 MiB)  TX bytes:2707205 (2.5 MiB)

virbr0    Link encap:Ethernet  HWaddr 00:00:00:00:00:00  
          inet addr:192.168.122.1  Bcast:192.168.122.255  Mask:255.255.255.0
          inet6 addr: fe80::200:ff:fe00:0/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:0 errors:0 dropped:0 overruns:0 frame:0
          TX packets:57 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0 
          RX bytes:0 (0.0 b)  TX bytes:11302 (11.0 KiB)

 

That's the IP assigned via DHCP by your router