L2TP over IPSec VPN with OpenSwan and XL2TPD can't connect, timeout on Centos 6
- by Disco
I'm setting up LT2p over IPSec on my Centos 6.3 fresh install.
I have iptables flushed, permit all.
Whenever I try to connect, i get a 'no reply from vpn' and nothi
Here's my ipsec.conf file (Server is 1.2.3.4) :
config setup
nat_traversal=yes
virtual_private=%v4:10.0.0.0/8,%v4:192.168.0.0/16,%v4:172.16.0.0/12
oe=off
protostack=netkey
conn L2TP-PSK-NAT
rightsubnet=vhost:%priv
also=L2TP-PSK-noNAT
conn L2TP-PSK-noNAT
authby=secret
pfs=no
auto=add
keyingtries=3
rekey=no
ikelifetime=8h
keylife=1h
type=transport
left=1.2.3.4
leftprotoport=17/1701
right=%any
rightprotoport=17/%any
My /etc/ipsec.secrets
1.2.3.4 %any: PSK "password"
My sysctl.conf (appened lines)
net.ipv4.ip_forward = 1
net.ipv4.conf.default.rp_filter = 0
net.ipv4.conf.all.send_redirects = 0
net.ipv4.conf.default.send_redirects = 0
net.ipv4.conf.all.log_martians = 0
net.ipv4.conf.default.log_martians = 0
net.ipv4.conf.default.accept_source_route = 0
net.ipv4.conf.all.accept_redirects = 0
net.ipv4.conf.default.accept_redirects = 0
net.ipv4.icmp_ignore_bogus_error_responses = 1
Here's what 'ipsec verify' gives:
# ipsec verify
Checking your system to see if IPsec got installed and started correctly:
Version check and ipsec on-path [OK]
Linux Openswan U2.6.32/K2.6.32-279.19.1.el6.x86_64 (netkey)
Checking for IPsec support in kernel [OK]
SAref kernel support [N/A]
NETKEY: Testing for disabled ICMP send_redirects [OK]
NETKEY detected, testing for disabled ICMP accept_redirects [OK]
Checking that pluto is running [OK]
Pluto listening for IKE on udp 500 [OK]
Pluto listening for NAT-T on udp 4500 [OK]
Checking for 'ip' command [OK]
Checking /bin/sh is not /bin/dash [WARNING]
Checking for 'iptables' command [OK]
Opportunistic Encryption Support [DISABLED]
And I see xl2tpd is listening on 1701/udp :
udp 0 0 1.2.3.4:1701 0.0.0.0:* 2096/xl2tpd
