Configuration Examples and TechNotes
- Configuring Dynamic Multipoint VPN Using GRE Over IPSec With EIGRP, NAT, and CBAC
- Configuring Dynamic Multipoint VPN Using GRE Over IPsec With OSPF, NAT, and Cisco IOS Firewall
- Configuring IPSec with EIGRP and IPX Using GRE Tunneling
- Configuring Router-to-Router IPsec (Pre-shared Keys) on GRE Tunnel with IOS Firewall and NAT
- Configuring a GRE Tunnel over IPsec with OSPF
- IPSec/GRE with NAT on IOS Router Configuration Example
- Multicast over a GRE Tunnel
- Next Generation Multicast Default MDT: Profile 0
- Client-Initiated L2TPv2 Tunnel with ISR4000 That Acts as a Server Configuration Example
- Configuring Layer 2 Tunnel Protocol Authentication with RADIUS
- Configuring Layer 2 Tunneling Protocol (L2TP) over IPSec
- L2TPv3 over FlexVPN Configuration Guide
- Set Up L2TP Tunnel Between a Windows Machine and a Cisco Router
- Guide to BSC and BSTUN (ZIP - 72 KB)
Generic Routing Encapsulation (GRE)
Generic Routing Encapsulation (GRE)
Layer Two Tunnel Protocol (L2TP)
Point-to-Point Tunneling Protocol (PPTP)
Serial Tunnel (STUN)
X25 Over TCP (XOT)