static IP setup windows 10 and router

[akosf]

I have been provided 4 static IP addresses by talktalk.
xxx.xxx.xx.180
xxx.xxx.xx.181
xxx.xxx.xx.182
xxx.xxx.xx.183

When I check my IP on all devices it's showing xxx.xxx.xx.181 which is fine (default ?)
I need to set/assign one of the other IPs lets say xxx.xxx.xx.183 for a Win 10 machine to use so when I check my IP on this Win 10 machine it'll show xxx.xxx.xx.183 and  not xxx.xxx.xx.181
I know that under router settings in Windows control panel under IPv4 settings I need to change to use this IP xxx.xxx.xx.183 but it also needs subnet mask, default gateway, dns server 1 and 2 and I don't know where to get those from ?
Also what to change/set at the actual router ?
Any help would be appreciated

[akosf]

thank you very much, looks like it is this guide I need but I have the Huawei HG635 router which is very similar to the one in the guide however when I get to this section

• From here  click on the “Internet” tab on the top menu of the Router's web console.  Once there click on “Port Forwarding” on the left menu.  Then click on the “Multi-NAT” dropdown on the center screen.
  

Under Internet > Port forwarding I do not have the 'Multi Nat' option anywhere.
Only have Port Mapping, Port Trigger, ALG

Any suggestions please ?

[Gondola]

Use this guide courtesy of Think Broadband.

If you need any other help then contact your assigned Business contact at TalkTalk Business.