Skip to content
Skip to search
Skip to footer

IP Tunneling

Generic Routing Encapsulation (GRE)
Point-to-Point Tunneling Protocol (PPTP)
Layer Two Tunnel Protocol (L2TP)
Ascend Tunnel Management Protocol (ATMP)
Mobile IP
Layer Two Forwarding (L2F)
Rate Based Satellite Control Protocol (RBSCP)
Bisync Serial Tunnelling (BSTUN)
X25 Over TCP (XOT)
Serial Tunneling - Synchronous Data Link Control (STUN-SDLC)
Serial Tunnel (STUN)

Top Search Results

New

Key Information

Customers Also Viewed

Saved Content

You can now save documents for easier access and future use. Saved documents for this product will be listed here, or visit the My Saved Content page to view and manage all saved content from across Cisco.com.

Log in to see your Saved Content.

Technology Information
- Point-to-Point Tunneling Protocol (PPTP)
  - PPTP Frequently Asked Questions 24-Mar-2009
- Serial Tunnel (STUN)
  - Serial Tunneling FAQ 09-Sep-2005
- Mobile IP
  - Introduction to Mobile IP 05-Oct-2001
- Access Control Lists and IP Fragments 10-Aug-2005
Design
- Layer Two Tunnel Protocol (L2TP)
  - Access VPDN Dial-in Using L2TP 03-Jul-2001
  - Access VPDN Dial-in Using IPSec Over L2TP 17-Nov-2000
Configuration
- TCP over X.25 23-Oct-2018
- Next Generation Multicast Default MDT: Profile 0 09-Apr-2018
- Multicast over a GRE Tunnel 23-Jun-2016
- Set Up L2TP Tunnel Between a Windows Machine and a Cisco Router 11-May-2016
- Client-Initiated L2TPv2 Tunnel with ISR4000 That Acts as a Server Configuration Example 18-Nov-2014
- Guide to BSC and BSTUN 29-Sep-2014
- Enable LAT Over a GRE Tunnel with Protocol Translation Configuration Example 19-Dec-2013
- L2 Bridging Across an L3 Network Configuration Example 09-Jul-2013
- WCCP on ASA: Concepts, Limitations, and Configuration 31-May-2013
- Configuring Cisco IOS and Windows 2000 Clients for L2TP Using Microsoft IAS 23-Oct-2009
- Configuring Layer 2 Tunnel Protocol Authentication with RADIUS 14-May-2009
- How to Configure Layer 2 Tunnel Protocol Authentication with TACACS+ 14-May-2009
- Configuring the PIX Firewall and VPN Clients Using PPTP, MPPE and IPSec 13-Oct-2008
- Configuring the PIX Firewall and VPN Clients Using PPTP, MPPE and IPSec 13-Oct-2008
- Configuring a GRE Tunnel over IPsec with OSPF 26-Sep-2008
View all documentation of this type
Operation and Troubleshooting
- Generic Routing Encapsulation (GRE)
  - How do I read or interpret the WCCP logs on Cisco Web Security appliance? 10-Oct-2014
- Understand GRE Tunnel Keepalives 19-Dec-2022
- Determine What Impacts GRE Tunnel Interface States 25-Aug-2022
- Xconnect over VRF Aware L2TPv3 in ASR1K 03-Apr-2018
- Understanding the authentication imsi-auth | msisdn-auth Configuration for Corporate L2TP APNs 25-Apr-2017
- L2TP in StarOS - Implementation on the ASR5k and Troubleshoot L2TP Peering - L2TPTunnelDownPeerUnreachable 21-Mar-2016
- Quality of Service Options on GRE Tunnel Interfaces 20-Mar-2015
- Overview of Keepalive Mechanisms on Cisco IOS 17-Dec-2014
- Guide to BSC and BSTUN 29-Sep-2014
- DMVPN Phase 1 Debugs Troubleshoot Guide 16-Jan-2014
- How Virtual Private Networks Work 13-Oct-2008
- Cisco Hardware and VPN Clients Supporting IPSec/PPTP/L2TP 07-Feb-2007
- Cisco BSTUN/BSC/Bisync Hardware Support Levels 12-Nov-2006
- How GRE Keepalives Work 16-Jun-2006
- Using RADIUS Servers with VPN 3000 Products 14-Sep-2005
- Configuring and Troubleshooting Serial Tunneling (STUN) 09-Sep-2005