VPN (IKE)

Initiator SPI: 3339376768753476
Responder SPI: 366b706971727a71
Next Payload: Notification (N)
Version: 1.0
Exchange Type: Informational
Flags:
    Encryption:     False
    Commit:         False
    Authentication: False
Message ID: 00000000
Length: 40

SIP/2.0 200 OK
From: <sip:nm@nm>;tag=root
To: <sip:nm2@nm2>;tag=80061d90-0-13c4-f3bb1-628b609d-f3bb1
Call-ID: 50000
CSeq: 42 OPTIONS
Via: SIP/2.0/UDP nm;received=224.24.179.175;rport=26810;branch=foo
Supported: 100rel,replaces,timer,path
Contact: <sip:127.0.0.1:5060>
Content-Length: 0