<div dir="ltr"><div><div>Hi, I'm running virt-manager 2.2.1 on a ubuntu 20.04 (kde neon).<br></div>In stalled a ubuntu 22.04 as guest.<br></div><div>The vm nic is configured using bridge</div><div><span style="font-family:monospace"><br></span></div><div><span style="font-family:monospace"><interface type="bridge"><br>  <mac address="52:54:00:6f:27:8e"/><br>  <source bridge="virbr0"/><br>  <target dev="vnet0"/><br>  <model type="rtl8139"/><br>  <alias name="net0"/><br>  <address type="pci" domain="0x0000" bus="0x02" slot="0x01" function="0x0"/><br></interface></span></div><div><br></div><div>I cloned the vm (with a differe mac address).<br></div><div><br></div><div><span style="font-family:monospace"><interface type="bridge"><br>  <mac address="52:54:00:25:c7:4a"/><br>  <source bridge="virbr0"/><br>  <model type="rtl8139"/><br>  <address type="pci" domain="0x0000" bus="0x02" slot="0x01" function="0x0"/><br></interface></span></div><div><br></div><div>When I run the first vm I notice it gets and IP from DHCP and this is my first surprise.<br></div><div>It gets the ip 192.168.122.159.<br></div><div>1) What is acting as DHCP server?</div><div><br></div><div><span style="font-family:monospace"><span style="color:rgb(0,0,0);background-color:rgb(255,255,255)">brctl show
</span><br>bridge name     bridge id               STP enabled     interfaces
<br>virbr0          8000.52540037d765       yes             virbr0-nic
<br>                                                        vnet0<br>
<br></span></div><div><span style="font-family:monospace"><span style="font-family:arial,sans-serif">If i run the second guest, it receive the very same ip!<br>As result, I get an ip conflict.</span></span></div><div><span style="font-family:monospace"><br></span></div><div><span style="font-family:monospace"><span style="font-family:monospace"><span style="color:rgb(0,0,0);background-color:rgb(255,255,255)">arping -d 192.168.122.159
</span><br>ARPING 192.168.122.159
<br>42 bytes from 52:54:00:25:c7:4a (192.168.122.159): index=0 time=397.843 usec
<br>42 bytes from 52:54:00:6f:27:8e (192.168.122.159): index=1 time=671.916 usec<br>
<br></span></span></div><div><span style="font-family:arial,sans-serif">2) I notice the rbidge has the ip 192.168.122.1. Is possible to configure it? I also notice I can't edit bridge settings from the kde netwrk manager.</span></div><div><span style="font-family:arial,sans-serif"><br></span></div><div><span style="font-family:monospace"><span style="font-family:monospace"><span style="font-family:arial,sans-serif">3) I expected to have by network card as member of the bridge</span></span></span></div><div><span style="font-family:monospace"><span style="font-family:monospace"><br></span></span></div><div><span style="font-family:monospace"><span style="font-family:monospace"><span style="font-family:monospace"><span style="color:rgb(0,0,0);background-color:rgb(255,255,255)">2: eno2: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc fq_codel state DOWN mode DEFAULT group default qlen 1000
</span><br>    link/ether 98:e7:43:9a:fe:09 brd ff:ff:ff:ff:ff:ff
<br>    altname enp0s31f6</span></span></span></div><div><span style="font-family:monospace"><span style="font-family:monospace"><span style="font-family:monospace"><br></span></span></span></div><div><span style="font-family:monospace"><span style="font-family:monospace"><span style="font-family:monospace"><font face="arial,sans-serif">but it's not.<br>How shall I add it?</font><br></span></span></span></div></div>