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IP Tunneling

Security Advisories, Responses and Notices

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Generic Routing Encapsulation (GRE)
- Cisco Security Response: Cisco IOS GRE Decapsulation Vulnerability
  06/Sep/2006
Point-to-Point Tunneling Protocol (PPTP)
- Cisco Security Advisory: Cisco IOS Virtual Private Dial-up Network Denial of Service Vulnerability
  03/Jul/2008
- Cisco Security Advisory: Cisco IOS PPTP Vulnerability
  13/Sep/2001