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Racoon IPsec Configuration

Linux racoon IPsec daemon can be configured through /etc/config/racoon. This document is in an advanced beta state.

Sections

racoon

Name	Type	Required	Default	Description
foreground	boolean	no	0	Start racoon in foreground if set to 1
debug	boolean	no	0	Activate racoon debugging if set to 1
listen	list	no	(not set)	List which interfaces racoon should listen on. Uses all interfaces if not set.
zone	string	no	vpn	Firewall zone. Has to match the defined firewall zone
dns	string	no	(none)	IP address of DNS server published to road warrior clients
domain	string	no	(none)	Domain name assigned to virtual network interface of road warrior clients

tunnel

Contains tunnel definition.

Name	Type	Required	Default	Description
enabled	boolean	yes	(none)	Configuration is enabled or not
remote	ipaddr	yes	(none)	IP address or FQDN name of the tunnel remote endpoint. Use anonymous for road warrior setup
remote_device	string	no	(none)	setting used for optimise racoon.conf generation when remote peer is Cisco ASA
exchange_mode	string	yes	(none)	Phase 1 negotiation (main, aggressive)
pre_shared_key	string	yes	(none)	The preshared key for the tunnel
my_identifier_type	string	no	fqdn	identifier type for phase 1 (fqdn, user_fqdn)
my_identifier	string	no	(none)	identifier for phase 1
certificate	string	no	(none)	Certificate name for phase 1 when using certificate authentication
p1_proposal	list	yes	(none)	Name of phase 1 proposal (see below)
sainfo	list	yes	(none)	Name of phase 2 section (see below)
dpd_delay	integer	no	(none)	This option activates the DPD and sets the time (in seconds) allowed between 2 proof of liveliness requests

p1_proposal

Definition of phase 1 proposals

Name	Type	Required	Default	Description
lifetime	integer	no	28800	Lifetime of phase 1 in seconds
encryption_algorithm	string	yes	(none)	Phase 1 encryption method (aes 128, aes 192, aes 256, 3des)
hash_alogrithm	string	yes	(none)	Phase 1 hash alogrithm (md5,sha1)
authentication_method	string	yes	(none)	Allowed values pre_shared_key, rsasig, xauth_psk_server or xauth_rsa_server
dh_group	string	yes	(none)	Diffie-Hellman exponentiation (either number 2,5,… or name modp768,…

sainfo

Contains network defintion per tunnel.

Name	Type	Required	Default	Description
local_subnet	subnet	yes	(none)	Local network
remote_subnet	subnet	yes	(none)	Remote network
local_nat	subnet	no	(none)	NAT range for tunnels with overlapping IP addresses
p2_proposal	string	yes	(none)	link to phase 2 proposal

p2_proposal

Definition of phase 2 proposal

Name	Type	Required	Default	Description
pfs_group	string	yes	(none)	Comma separated list of of Diffie-Hellman exponentiations (you can omit this, when peer is Cisco ASA)
lifetime	integer	no	3600	Lifetime of phase 2 in seconds
encryption_algorithm	string	yes	(none)	Comma separaeted list of encryption algorithms (aes 128, aes 192, aes 256, 3des)
authentication_algorithm	string	yes	(none)	Comma separated list of authentications (hmac_md5, hmac_sha1)

certificate

Stores a certificate

Name	Type	Required	Default	Description
crt	string	yes	(none)	RSA certificate
key	string	no	(none)	Private key for RSA certificate

Examples

Example 1 taken from the IPSec site to site howto.

config 'racoon'
  option 'foreground' '0'
  option 'zone' 'vpn'
  list   'listen' 'wan'

config 'tunnel' 'acme'
  option 'enabled' '1'
  option 'remote' '7.7.7.7'
  option 'pre_shared_key' 'yourpasswordhere'
  option 'exchange_mode' 'aggressive'
  option 'my_identifier' 'bratwurst'
  list   'p1_proposal' 'pre_g2_aes_sha1'
  list   'sainfo' 'acme_dmz'
  list   'sainfo' 'acme_lan'

config 'p1_proposal' 'pre_g2_aes_sha1'
  option 'encryption_algorithm' 'aes 128'
  option 'hash_algorithm' 'sha1'
  option 'authentication_method' 'pre_shared_key'
  option 'dh_group' '2'

config 'sainfo' 'acme_lan'
  option 'local_subnet' '192.168.2.64/26'
  option 'remote_subnet' '10.1.2.0/24'
  option 'p2_proposal' 'g2_aes_sha1'

config 'sainfo' 'acme_dmz'
  option 'local_subnet' '192.168.2.64/26'
  option 'remote_subnet' '66.77.88.192/26'
  option 'p2_proposal' 'g2_aes_sha1'

config 'p2_proposal' 'g2_aes_sha1'
  option 'pfs_group' '2'
  option 'encryption_algorithm' 'aes 128'
  option 'authentication_algorithm' 'hmac_sha1'

Example 2 taken from the IPSec with certificates howto.

config 'racoon'
  option 'foreground' '0'
  option 'debug' '0'

config 'tunnel' 'acme'
  option 'enabled' '1'
  option 'remote' '7.7.7.7'
  option 'exchange_mode' 'aggressive'
  option 'certificate' 'openwrt'
  list   'p1_proposal' 'rsa_g2_aes_sha1'
  list   'sainfo' 'acme_lan'

config 'sainfo' 'acme_lan'
  option 'local_subnet' '192.168.213.64/26'
  option 'remote_subnet' '192.168.10.0/24'
  option 'p2_proposal' 'g2_aes_sha1'

config 'p1_proposal' 'rsa_g2_aes_sha1'
  option 'lifetime' '28800'
  option 'encryption_algorithm' 'aes 128'
  option 'hash_algorithm' 'sha1'
  option 'authentication_method' 'rsasig'
  option 'dh_group' '2'

config 'p2_proposal' 'g2_aes_sha1'
  option 'pfs_group' '2'
  option 'lifetime' '3600'
  option 'encryption_algorithm' 'aes 128'
  option 'authentication_algorithm' 'hmac_sha1'

config 'certificate' 'acme_root'
  option 'crt' '-----BEGIN CERTIFICATE-----MIIGADCCA+igAwIBAgIJAI6xsXSYVD9NMA0GCSqGSI...'

config 'certificate' 'openwrt'
  option 'key' '-----BEGIN RSA PRIVATE KEY-----MIIJKAIBAAKCAgEAqMFzhBNsUyOGYmXGoHSq...'
  option 'crt' '-----BEGIN CERTIFICATE-----MIIE7DCCAtQCAQEwDQYJKoZIhvcNAQEFBQAwasff...'

Windows Native VPN Client Proposals

The following table lists the phase 1 proposals offered by the Windows native VPN client (as tested with Windows 7)

Proposal	Encryption	Hash	DH Group
#1	aes 256	sha1	20
#2	aes 128	sha1	19
#3	aes 256	sha1	modp2048
#4	3des	sha1	modp2048
#5	3des	sha1	modp1024

OpenWrt Wiki

Table of Contents

Racoon IPsec Configuration

Sections

racoon

tunnel

p1_proposal

sainfo

p2_proposal

certificate

Examples

Windows Native VPN Client Proposals

OpenWrt Wiki

User Tools

Site Tools

Table of Contents

Racoon IPsec Configuration

Sections

racoon

tunnel

p1_proposal

sainfo

p2_proposal

certificate

Examples

Windows Native VPN Client Proposals

Page Tools