Thanks for posting more detail. Your first regex should have a space at the end, to reject the 9494 when you are looking for 94. Or the second regex should have a ^ anchor at the beginning. And both need to not use .
where you want to match a literal period. To match a period only, use \. (backslash period) or [.].
To see how it's going wrong, look at this:
$ perl -we'"188.8.131.52.9494 " =~ /(\d+)(.)(\d+)(.)(\d+)(.)(\d+)(.
+)(94) / &&
> print qq<\n\nfirst digits: "$1", first .: "$2",\n
> second digits: "$3", second dot: "$4",\n
> third digits: "$5", third dot: "$6",\n
> fourth digits: "$7", fourth dot "$8", portnum: "$9">'
first digits: "228", first .: ".",
second digits: "132", second dot: ".",
third digits: "245", third dot: ".",
fourth digits: "9", fourth dot "4", portnum: "94"
Do you see how the missing ^ and unbackslashed . combine to allow it to match?
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