I am an absolute beginner in OpenWRT and Strongswan. I am trying to configure IPSec IKEv2 client to VPN service Perfect Privacy. Unfortunately so far without success.
My installed Strongswan packages on Asus AC56U with OpenWRT 18.06.2:
root@OpenWrt:~# opkg update
root@OpenWrt:~# opkg install strongswan-default strongswan-mod-md4 strongswan-mod-openssl strongswan-mod-uci strongswan-mod-eap-mschapv2 strongswan-mod-eap-identity
root@OpenWrt:~# cat /etc/ipsec.conf:
# ipsec.conf - strongSwan IPsec configuration file
# basic configuration
config setup
# strictcrlpolicy=yes
# uniqueids = no
# Add connections here.
# Sample VPN connections
#conn sample-self-signed
# leftsubnet=10.1.0.0/16
# leftcert=selfCert.der
# leftsendcert=never
# right=192.168.0.2
# rightsubnet=10.2.0.0/16
# rightcert=peerCert.der
# auto=start
#conn sample-with-ca-cert
# leftsubnet=10.1.0.0/16
# leftcert=myCert.pem
# right=192.168.0.2
# rightsubnet=10.2.0.0/16
# rightid="C=CH, O=Linux strongSwan CN=peer name"
# auto=start
conn PP-VPN
keyexchange=ikev2
dpdaction=clear
dpddelay=300s
rekey=no
eap_identity=username
compress=no
esp=aes256-sha1
ike=aes256-sha1-ecp521
leftauth=eap-mschapv2
left=%defaultroute
leftsourceip=%config
right=85.17.28.145
rightauth=pubkey
rightsubnet=0.0.0.0/0
rightid=%any
rightcert=/etc/ipsec.d/certs/perfect-privacy_ipsec_ca.pem
type=tunnel
auto=add
root@OpenWrt:~# cat /etc/ipsec.secrets:
# /etc/ipsec.secrets - strongSwan IPsec secrets file
username : EAP "password"
root@OpenWrt:~# cat /etc/config/firewall:
config defaults
option syn_flood 1
option input ACCEPT
option output ACCEPT
option forward REJECT
# Uncomment this line to disable ipv6 rules
# option disable_ipv6 1
config zone
option name lan
list network 'lan'
option input ACCEPT
option output ACCEPT
option forward ACCEPT
config zone
option name wan
list network 'wan'
list network 'wan6'
option input REJECT
option output ACCEPT
option forward REJECT
option masq 1
option mtu_fix 1
config forwarding
option src lan
option dest wan
# We need to accept udp packets on port 68,
# see https://dev.openwrt.org/ticket/4108
config rule
option name Allow-DHCP-Renew
option src wan
option proto udp
option dest_port 68
option target ACCEPT
option family ipv4
# Allow IPv4 ping
config rule
option name Allow-Ping
option src wan
option proto icmp
option icmp_type echo-request
option family ipv4
option target ACCEPT
config rule
option name Allow-IGMP
option src wan
option proto igmp
option family ipv4
option target ACCEPT
# Allow DHCPv6 replies
# see https://dev.openwrt.org/ticket/10381
config rule
option name Allow-DHCPv6
option src wan
option proto udp
option src_ip fc00::/6
option dest_ip fc00::/6
option dest_port 546
option family ipv6
option target ACCEPT
config rule
option name Allow-MLD
option src wan
option proto icmp
option src_ip fe80::/10
list icmp_type '130/0'
list icmp_type '131/0'
list icmp_type '132/0'
list icmp_type '143/0'
option family ipv6
option target ACCEPT
# Allow essential incoming IPv6 ICMP traffic
config rule
option name Allow-ICMPv6-Input
option src wan
option proto icmp
list icmp_type echo-request
list icmp_type echo-reply
list icmp_type destination-unreachable
list icmp_type packet-too-big
list icmp_type time-exceeded
list icmp_type bad-header
list icmp_type unknown-header-type
list icmp_type router-solicitation
list icmp_type neighbour-solicitation
list icmp_type router-advertisement
list icmp_type neighbour-advertisement
option limit 1000/sec
option family ipv6
option target ACCEPT
# Allow essential forwarded IPv6 ICMP traffic
config rule
option name Allow-ICMPv6-Forward
option src wan
option dest *
option proto icmp
list icmp_type echo-request
list icmp_type echo-reply
list icmp_type destination-unreachable
list icmp_type packet-too-big
list icmp_type time-exceeded
list icmp_type bad-header
list icmp_type unknown-header-type
option limit 1000/sec
option family ipv6
option target ACCEPT
# allow incoming IPsec connections
config rule
option name Allow-IPSec-ESP
option src wan
option proto esp
option target ACCEPT
config rule
option name Allow-IPSec-IKE
option src wan
option dest_port 500
option proto udp
option target ACCEPT
config rule
option name Allow-IPSec-NAT-T
option src wan
option proto udp
option dest_port 4500
option target ACCEPT
# include a file with users custom iptables rules
config include
option path /etc/firewall.user
### EXAMPLE CONFIG SECTIONS
# do not allow a specific ip to access wan
#config rule
# option src lan
# option src_ip 192.168.45.2
# option dest wan
# option proto tcp
# option target REJECT
# block a specific mac on wan
#config rule
# option dest wan
# option src_mac 00:11:22:33:44:66
# option target REJECT
# block incoming ICMP traffic on a zone
#config rule
# option src lan
# option proto ICMP
# option target DROP
# port redirect port coming in on wan to lan
#config redirect
# option src wan
# option src_dport 80
# option dest lan
# option dest_ip 192.168.16.235
# option dest_port 80
# option proto tcp
# port redirect of remapped ssh port (22001) on wan
#config redirect
# option src wan
# option src_dport 22001
# option dest lan
# option dest_port 22
# option proto tcp
### FULL CONFIG SECTIONS
#config rule
# option src lan
# option src_ip 192.168.45.2
# option src_mac 00:11:22:33:44:55
# option src_port 80
# option dest wan
# option dest_ip 194.25.2.129
# option dest_port 120
# option proto tcp
# option target REJECT
#config redirect
# option src lan
# option src_ip 192.168.45.2
# option src_mac 00:11:22:33:44:55
# option src_port 1024
# option src_dport 80
# option dest_ip 194.25.2.129
# option dest_port 120
# option proto tcp
root@OpenWrt:~# ipsec up PP-VPN:
initiating IKE_SA PP-VPN[1] to 85.17.28.145
generating IKE_SA_INIT request 0 [ SA KE No N(NATD_S_IP) N(NATD_D_IP) N(FRAG_SUP) N(HASH_ALG) N(REDIR_SUP) ]
sending packet: from 178.202.90.17[500] to 85.17.28.145[500] (802 bytes)
received packet: from 85.17.28.145[500] to 178.202.90.17[500] (357 bytes)
parsed IKE_SA_INIT response 0 [ SA KE No N(NATD_S_IP) N(NATD_D_IP) CERTREQ N(FRAG_SUP) N(HASH_ALG) N(MULT_AUTH) ]
received cert request for "C=CH, ST=Zug, L=Zug, O=Perfect Privacy, CN=Perfect Privacy IPSEC CA, E=admin@perfect-privacy.com"
sending cert request for "C=CH, ST=Zug, L=Zug, O=Perfect Privacy, CN=Perfect Privacy IPSEC CA, E=admin@perfect-privacy.com"
no IDi configured, fall back on IP address
establishing CHILD_SA PP-VPN{1}
generating IKE_AUTH request 1 [ IDi N(INIT_CONTACT) CERTREQ IDr CPRQ(ADDR DNS) SA TSi TSr N(MOBIKE_SUP) N(ADD_4_ADDR) N(ADD_6_ADDR) N(ADD_6_ADDR) N(ADD_6_ADDR) N(MULT_AUTH) N(EAP_ONLY) N(MSG_ID_SYN_SUP) ]
sending packet: from 178.202.90.17[4500] to 85.17.28.145[4500] (577 bytes)
received packet: from 85.17.28.145[4500] to 178.202.90.17[4500] (65 bytes)
parsed IKE_AUTH response 1 [ N(AUTH_FAILED) ]
received AUTHENTICATION_FAILED notify error
establishing connection 'PP-VPN' failed
I hope you can help me.
Thanks and Regards,
Bernd
