VPP/IPSec and IKEv2Last updated 2 years ago

This page describes the support in the VPP platform for IPSec and IKEv2.

IPSec

Features

This implementation of support for IPSec in the VPP engine includes the following features:

• ESP - Encapsulating Security Payload protocol
• Tunnel mode - encapsulates the entire IP packet
• Transport mode - encapsulates IP payload
• IPv4 and IPv6

Supported cryptographic algorithms for authentication:

• sha1
• sha-256-96
• sha-256-128
• sha-384-192
• sha-512-256

Supported cryptographic algorithms for encryption:

• aes-cbc-128
• aes-cbc-192
• aes-cbc-256

Configuration

SPD creation

The following example command shows the configuration sequence to create a Security Policy Database (SPD):

CLI commands

ipsec spd add 1

VAT commands

ipsec_spd_add_del spd_id 1

Enable SPD on an interface

The following example command shows the configuration sequence to enable SPD on an interface:

CLI commands

set interface ipsec spd GigabitEthernet0/6/0 1

VAT commands

ipsec_interface_add_del_spd GigabitEthernet0/5/0 spd_id 1

SA creation

The following example command shows the configuration sequence to create a Security Association (SA) for Tunnel mode:

CLI commands

ipsec sa add 10 spi 1001 esp crypto-key 4a506a794f574265564551694d653768 crypto-alg aes-cbc-128 integ-key 4339314b55523947594d6d3547666b45764e6a58 integ-alg sha1-96 tunnel-src 192.168.100.3 tunnel-dst 192.168.100.2

VAT commands

ipsec_sad_add_del_entry esp sad_id 10 spi 1001 crypto_alg aes-cbc-128 crypto_key 4a506a794f574265564551694d653768 integ_alg sha1-96 integ_key 4339314b55523947594d6d3547666b45764e6a58 tunnel_src 192.168.100.3 tunnel_dst 192.168.100.2

The following example command shows the configuration sequence to create a SA for Transport mode:

CLI commands

ipsec sa add 10 spi 1001 esp crypto-key 4a506a794f574265564551694d653768 crypto-alg aes-cbc-128 integ-key 4339314b55523947594d6d3547666b45764e6a58 integ-alg sha1-96

VAT commands

ipsec_sad_add_del_entry esp sad_id 10 spi 1001 crypto_alg aes-cbc-128 crypto_key 4a506a794f574265564551694d653768 integ_alg sha1-96 integ_key 4339314b55523947594d6d3547666b45764e6a58

SPD entry creation

Parameters:

• spd <id> - SPD identifier
• priority - policy order in SPD, signed integer
• inbound|outbound - policy is for inbound or outbound traffic
• action bypass|discard|protect - policy action, protect action needs aditional parameter "sa <id>"

Traffic selectors (optional parameters):

• local-ip-range <start_ip_addr> - <end_ip_addr>
• remote-ip-range <start_ip_addr> - <end_ip_addr>
• protocol <n>
• local-port-range <start_port> - <end_port> (only for TCP/UDP protocol)
• remote-port-range <start_port> - <end_port> (only for TCP/UDP protocol)

The following example commands show the configuration sequence to create a SPD entry:

CLI commands

ipsec policy add spd 1 inbound priority 10 action protect sa 20 local-ip-range 192.168.4.4 - 192.168.4.4 remote-ip-range 192.168.3.3 - 192.168.3.3

VAT commands

ipsec_spd_add_del_entry spd_id 1 priority 10 inbound action protectsa_id 20 laddr_start 192.168.4.4 laddr_stop 192.168.4.4 raddr_start 192.168.3.3 raddr_stop 192.168.3.3