A client error (UnknownParameter) occurred when calling the AuthorizeSecurityGroupEgress operation: The parameter CidrIp is not recognized

i am trying to create a outbound rule for a security group using aws cli. i used the following command

aws ec2 authorize-security-group-egress --cli-input-json http://ift.tt/1HH7hv8

which gave me error:

A client error (UnknownParameter) occurred when calling the AuthorizeSecurityGroupEgress operation: The parameter CidrIp is not recognized

The input json file auth_sec_grp_egress1.json is

{
    "DryRun": false, 
    "GroupId": "sg-99b2f2fd", 
    "IpProtocol": "tcp", 
    "FromPort": 123, 
    "ToPort": 123, 
    "CidrIp": "172.24.102.126/32"
}

i looked at AWS documetation for the error code UnknownParameter , which says

An unknown or unrecognized parameter was supplied. Requests that could cause this error include supplying a misspelled parameter or a parameter that is not supported for the specified API version.

but the json i am supplying as input is generated by the command

aws ec2 authorize-security-group-egress --generate-cli-skeleton > auth_sec_grp_egress1.json

i am working with aws cli version - aws-cli/1.7.22 Python/2.7.9 Windows/7