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DNSMASQ Libvirt



Hi,

Net-dump xml File.

root NFV-FRU:~# virsh net-dumpxml data-2
<network>
  <name>data-2</name>
  <uuid>ace4935f-0367-4632-be7c-61bab2da7d4a</uuid>
  <bridge name='data-2br1' stp='on' delay='0'/>
  <mac address='52:54:00:46:43:7d'/>
  <ip address='10.12.12.1' netmask='255.255.255.240'>
    <dhcp>
      <range start='10.12.12.4' end='10.12.12.4'/>
    </dhcp>
  </ip>
</network>

The DHCP response is going with Subnet Mask 255.255.255.0

10.12.12.1.bootps > 10.12.12.4.bootpc: [udp sum ok] BOOTP/DHCP, Reply, length 300, xid 0x7331d77a, Flags [none] (0x0000)

  Your-IP 10.12.12.4

  Server-IP 10.12.12.1

  Client-Ethernet-Address 52:54:00:5f:ab:94 (oui Unknown)

  Vendor-rfc1048 Extensions

    Magic Cookie 0x63825363

    DHCP-Message Option 53, length 1: Offer

    Server-ID Option 54, length 4: 10.12.12.1

    Lease-Time Option 51, length 4: 3600

    RN Option 58, length 4: 1800

    RB Option 59, length 4: 3150

    Subnet-Mask Option 1, length 4: 255.255.255.0

    BR Option 28, length 4: 10.12.12.255

    Domain-Name-Server Option 6, length 4: 10.12.12.1

Can I know the reason ?

Thanks & Regards
Santhosh Kumar Gunturu

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