VPP IPIP Configuration

VPP IPIP interfaces provide IP-in-IP tunneling with high-performance packet processing. IPIP tunnels encapsulate IP packets within IP packets, creating point-to-point connections across Layer 3 networks.

Basic Configuration

Creating an IPIP Interface

set interfaces vpp ipip <vppipipN>

Create an IPIP interface where <vppipipN> follows the naming convention vppipip1, vppipip2, etc.

set interfaces vpp ipip <vppipipN> remote <address>

Set the tunnel remote endpoint address. Supports both IPv4 and IPv6 addresses.

set interfaces vpp ipip <vppipipN> source-address <address>

Set the tunnel source address. The source address must match an address configured on the local system.

Basic Example:

set interfaces vpp ipip vppipip1
set interfaces vpp ipip vppipip1 remote 203.0.113.2
set interfaces vpp ipip vppipip1 source-address 192.168.1.1

Interface Configuration

Description and Administrative Control

set interfaces vpp ipip <vppipipN> description <description>

Set a descriptive name for the IPIP interface.

set interfaces vpp ipip <vppipipN> disable

Administratively disable the IPIP interface.

Kernel Interface Integration

Kernel interface is bound to the VPP IPIP interface for management and application compatibility.

IP Address Configuration

set interfaces vpp ipip <vppipipN> address <ip-address/prefix>

Configure IPv4 or IPv6 addresses on the kernel interface. Multiple addresses can be assigned.

Examples:

# IPv4 address
set interfaces vpp ipip vppipip0 address 192.168.1.10/24

# IPv6 address
set interfaces vpp ipip vppipip0 address 2001:db8::10/64

MTU Configuration

set interfaces vpp ipip <vppipipN> mtu <size>

Set the Maximum Transmission Unit (MTU) for the kernel interface. The MTU must be compatible with the connected VPP interface.

Configuration Examples

IPv4 IPIP Tunnel

# Basic IPv4 IPIP tunnel
set interfaces vpp ipip vppipip1
set interfaces vpp ipip vppipip1 description "Site-to-site IPIP tunnel"
set interfaces vpp ipip vppipip1 remote 203.0.113.10
set interfaces vpp ipip vppipip1 source-address 192.168.1.1

IPv6 IPIP Tunnel

# IPv6 endpoints
set interfaces vpp ipip vppipip2
set interfaces vpp ipip vppipip2 remote 2001:db8::2
set interfaces vpp ipip vppipip2 source-address 2001:db8::1

IPIP with Kernel Interface

# IPIP tunnel with management interface
set interfaces vpp ipip vppipip3
set interfaces vpp ipip vppipip3 remote 203.0.113.30
set interfaces vpp ipip vppipip3 source-address 192.168.1.1
set interfaces vpp ipip vppipip3 address 10.0.2.1/30