Following one-liner will search for a ip address pattern in the specified file and replace it with the one provided :
sed 's/[0-9]\{1,3\}.[0-9]\{1,3\}.[0-9]\{1,3\}.[0-9]\{1,3\}/IPADDRESS-COMES-HERE/g' /SourceFilename > /DestinationFilenameFollowing one-liner will search for a ip address pattern in the specified file and replace it with the one provided :
sed 's/[0-9]\{1,3\}.[0-9]\{1,3\}.[0-9]\{1,3\}.[0-9]\{1,3\}/IPADDRESS-COMES-HERE/g' /SourceFilename > /DestinationFilename