[isalist] Re: VPN over the net
- From: "Andrew English" <andrew@xxxxxxxxxxxxxxxxxxxxxx>
- To: <isalist@xxxxxxxxxxxxx>
- Date: Wed, 22 Mar 2006 21:14:06 -0500
Here is a dump off the ISA server just taken now using Ethereal. This time I
just used the access rule I created for PPTP and L2PT which gave me the 619
error machine. I looked it up and several sites say that you need to have port
1723 option and protocol #47 GRE as well. I don't see any GRE in ISA's protocol
list so I am not sure if it's open by default or not.
"77", "20.354517", "206.248.138.108", "67.69.15.20", "TCP", "60637 > pptp [SYN]
Seq=0 Ack=0 Win=65535 Len=0 MSS=1412"
"78", "20.356294", "67.69.15.20", "206.248.138.108", "TCP", "pptp > 60637 [SYN,
ACK] Seq=0 Ack=1 Win=16384 Len=0 MSS=1460"
"79", "20.708283", "206.248.138.108", "67.69.15.20", "TCP", "60637 > pptp [ACK]
Seq=1 Ack=1 Win=65535 Len=0"
"80", "20.711863", "206.248.138.108", "67.69.15.20", "PPTP",
"Start-Control-Connection-Request"
"81", "20.719783", "67.69.15.20", "206.248.138.108", "PPTP",
"Start-Control-Connection-Reply"
"82", "21.109566", "206.248.138.108", "67.69.15.20", "PPTP",
"Outgoing-Call-Request"
"83", "21.133715", "67.69.15.20", "206.248.138.108", "PPTP",
"Outgoing-Call-Reply"
"84", "21.489766", "206.248.138.108", "67.69.15.20", "PPTP", "Set-Link-Info"
"85", "21.492862", "206.248.138.108", "67.69.15.20", "PPP LCP", "Configuration
Request"
"86", "21.514942", "67.69.15.20", "206.248.138.108", "PPP LCP", "Configuration
Request"
"87", "21.515068", "67.69.15.20", "206.248.138.108", "PPP LCP", "Configuration
Ack"
"88", "21.687898", "67.69.15.20", "206.248.138.108", "TCP", "pptp > 60637 [ACK]
Seq=189 Ack=349 Win=65187 Len=0"
"89", "21.881650", "206.248.138.108", "67.69.15.20", "PPP LCP", "Configuration
Reject"
"90", "21.881897", "67.69.15.20", "206.248.138.108", "PPP LCP", "Configuration
Request"
"91", "21.982027", "206.248.138.108", "67.69.15.20", "GRE", "Encapsulated PPP"
"92", "22.088583", "206.248.138.108", "67.69.15.20", "PPP LCP", "Configuration
Ack"
"93", "22.089048", "67.69.15.20", "206.248.138.108", "PPTP", "Set-Link-Info"
"94", "22.090538", "206.248.138.108", "67.69.15.20", "PPP LCP", "Identification"
"95", "22.090965", "206.248.138.108", "67.69.15.20", "PPP LCP", "Identification"
"96", "22.092652", "206.248.138.108", "67.69.15.20", "PPTP", "Set-Link-Info"
"97", "22.102192", "67.69.15.20", "206.248.138.108", "PPP CHAP", "Challenge"
"98", "22.160985", "206.248.138.108", "67.69.15.20", "TCP", "60637 > pptp [RST,
ACK] Seq=373 Ack=213 Win=0 Len=0"
Regards,
Andrew
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