Ansible - Change Exact IP address

Assume that shorewall rules config contain ACCEPT net:1.234.5.253 all tcp 3306 ACCEPT net:1.234.5.2 all tcp 80 ACCEPT net:1.234.5.2 all tcp 80 ACCEPT net:1.2.3.4,1.234.5.22,1.1.1.1 all tcp 3306 I want replace them with ansible - name: Replace old ips in /etc/shorewall/rules replace: path: /etc/shorewall/rules regexp: '{{ oldip }}' replace: '{{ newip }}' backup: 'yes' Variables are vars: oldip: 1.234.5.2 newip: 100.100.100.100 Im getting output which is correct, but im expecting replace EXACT match of ip not this output ACCEPT net:100.100.100.10053 all tcp 3306 ACCEPT net:100.100.100.100 all tcp 80 ACCEPT net:100.100.100.100 all tcp 80 ACCEPT net:1.2.3.4,100.100.100.1002,1.1.1.1 all tcp 3306 Is there any way how to solve it ?