output to be parsed:
Starting ike-scan 1.7 with 1 hosts (http://www.nta-monitor.com/ike-scan/)
206.47.249.40   Main Mode Handshake returned SA=(Enc=3DES Hash=SHA1 Auth=RSA_Sig Group=2:modp1024 LifeType=Seconds LifeDuration(4)=0x00007080)

IKE Backoff Patterns:

IP Address      No.     Recv time               Delta Time
206.47.249.40   1       1161963569.839546       0.000000
206.47.249.40   2       1161963585.624889       15.785343
206.47.249.40   3       1161963601.627019       16.002130
206.47.249.40   4       1161963617.628598       16.001579
206.47.249.40   Implementation guess: Nortel Contivity

Ending ike-scan 1.7: 1 hosts scanned in 107.950 seconds (0.01 hosts/sec).  1 returned handshake; 0 returned notify

python script to parse it:

import re
from os import access,F_OK

def parse (inFile):
    if access(inFile,F_OK)==False:
        return None

    file = open(inFile,'r')
    txt = file.read()
    file.close()
    print txt
    if "1 returned handshake" in txt:
            lines = re.split("\n",txt)
            ikeInfo={}  # Will contain all the IKE info
            for line in lines:
                print line
                if "Main Mode" in line:
                        parts = re.split(r"\(",line)
                        algparts = re.split(" ",parts[1])
                        encparts = re.split("=",algparts[0])
                        ikeInfo["Enc"] = encparts[1]
                        hashparts = re.split("=",algparts[1])
                        ikeInfo["Hash"] = hashparts[1]
                        authparts = re.split("=",algparts[2])
                        ikeInfo["Auth"] = authparts[1]
                        groupparts = re.split("=",algparts[3])
                        ikeInfo["Group"] = groupparts[1]
                        durparts = re.split("=",algparts[5])
                        ikeInfo["Duration"] = durparts[1]
                if "Implementation" in line:
                        implparts = re.split(": ",line)
                        ikeInfo["Implementation"] = implparts[1]
                        print ikeInfo
                return ikeInfo