Setting up dnsmasq (2.76-5+rpt1+deb9u1) ...

Configuration file '/etc/dnsmasq.conf'
 ==> File on system created by you or by a script.
 ==> File also in package provided by package maintainer.
   What would you like to do about it ?  Your options are:
    Y or I  : install the package maintainer's version
    N or O  : keep your currently-installed version
      D     : show the differences between the versions
      Z     : start a shell to examine the situation
 The default action is to keep your current version.
*** dnsmasq.conf (Y/I/N/O/D/Z) [default=N] ? y
Installing new version of config file /etc/dnsmasq.conf ...
Created symlink /etc/systemd/system/multi-user.target.wants/dnsmasq.service → /lib/systemd/system/dnsmasq.service.
Job for dnsmasq.service failed because the control process exited with error code.
See "systemctl status dnsmasq.service" and "journalctl -xe" for details.
invoke-rc.d: initscript dnsmasq, action "start" failed.
● dnsmasq.service - dnsmasq - A lightweight DHCP and caching DNS server
   Loaded: loaded (/lib/systemd/system/dnsmasq.service; enabled; vendor preset: enabled)
   Active: failed (Result: exit-code) since Sun 2019-10-20 13:13:57 PDT; 32ms ago
  Process: 1698 ExecStart=/etc/init.d/dnsmasq systemd-exec (code=exited, status=2)
  Process: 1695 ExecStartPre=/usr/sbin/dnsmasq --test (code=exited, status=0/SUCCESS)

Oct 20 13:13:57 anoopi systemd[1]: Starting dnsmasq - A lightweight DHCP and caching …er...
Oct 20 13:13:57 anoopi dnsmasq[1695]: dnsmasq: syntax check OK.
Oct 20 13:13:57 anoopi dnsmasq[1698]: dnsmasq: failed to create listening socket for …n use
Oct 20 13:13:57 anoopi systemd[1]: dnsmasq.service: Control process exited, code=exit…tus=2
Oct 20 13:13:57 anoopi systemd[1]: Failed to start dnsmasq - A lightweight DHCP and c…rver.
Oct 20 13:13:57 anoopi systemd[1]: dnsmasq.service: Unit entered failed state.
Oct 20 13:13:57 anoopi systemd[1]: dnsmasq.service: Failed with result 'exit-code'.
Hint: Some lines were ellipsized, use -l to show in full.
Processing triggers for systemd (232-25+deb9u2) ...