[Openswan Users] Openswan IPSEC tunnel VPN established but ping and all work from one side only

[Dario Garay]

Good day people, i ´m new in the mail list. I need help whit my vpn connection because the connection established but only work from side A to B but not in reverse.

I have 2 routers ClearOs 5.2 and i´m trying to connect the 2 lan whit ipsec using Openswan IPsec U2.6.21/K2.6.18-194.8.1.v5 .

192.168.1.0/24 ===192.168.1.7(router  A lan interface)====(External IP A)===INTERNET ===(External ip B) ====(router B lan interface)192.168.2.1====192.168.2.0/24

The connection established but from router B not work to router A.

Any suggest?
thnks

==============================================================================================

IPsec.conf ( Router A)
version 2.0

#config setup
#        klipsdebug=all
#        plutodebug=all

config setup
        interfaces=%defaultroute
        protostack=netkey
        klipsdebug=all
        plutodebug=all

conn g2tog1
        auto=add
        authby=secret
        left=External IP B
        leftsubnet=192.168.2.0/24
        leftnexthop=192.168.2.1
        right=External IP A
        rightsubnet=192.168.1.0/24
        rightnexthop=192.168.1.7

#ipsec verify
Checking your system to see if IPsec got installed and started correctly:
Version check and ipsec on-path                                 [OK]
Linux Openswan U2.6.21/K2.6.18-194.8.1.v5 (netkey)
Checking for IPsec support in kernel                            [OK]
NETKEY detected, testing for disabled ICMP send_redirects       [OK]
NETKEY detected, testing for disabled ICMP accept_redirects     [OK]
Checking for RSA private key (/etc/ipsec.secrets)               [OK]
Checking that pluto is running                                  [OK]
Two or more interfaces found, checking IP forwarding            [OK]
Checking NAT and MASQUERADEing
Checking for 'ip' command                                       [OK]
Checking for 'iptables' command                                 [OK]

Opportunistic Encryption DNS checks:
   Looking for TXT in forward dns zone: Georouter.gsystems.com.ar       [MISSING]
   Does the machine have at least one non-private address?      [OK]
   Looking for TXT in reverse dns zone: 117.168.61.200.in-addr.arpa.    [MISSING]


# route
EXTERNAL ADDRESS  A *               255.255.255.252 U     0      0        0 eth2
192.168.2.0     *               255.255.255.0   U     0      0        0 eth2
192.168.1.0     *               255.255.255.0   U     0      0        0 eth1

ping 192.168.1.111
PING 192.168.1.111 (192.168.1.111) 56(84) bytes of data.
64 bytes from 192.168.1.111: icmp_seq=1 ttl=128 time=1.41 ms
64 bytes from 192.168.1.111: icmp_seq=2 ttl=128 time=0.203 ms
64 bytes from 192.168.1.111: icmp_seq=3 ttl=128 time=0.197 ms

=============================================================================================

ipsec.conf (router B)
version 2.0

#config setup
#        klipsdebug=all
#        plutodebug=all

config setup
        interfaces=%defaultroute
        protostack=netkey
        klipsdebug=all
        plutodebug=all

conn g2tog1
        auto=add
        authby=secret
        left=EXTERNAL IP B
        leftsubnet=192.168.2.0/24
        leftnexthop=192.168.2.1
        right=EXTERNAL IP A
        rightsubnet=192.168.1.0/24
        rightnexthop=192.168.1.7

# route
EXTERNAL ADDRESS  B *               255.255.255.252 U     0      0        0 eth2
192.168.2.0     *               255.255.255.0   U     0      0        0 eth2

#ipsec verify
Checking your system to see if IPsec got installed and started correctly:
Version check and ipsec on-path                                 [OK]
Linux Openswan U2.6.21/K2.6.18-194.8.1.v5 (netkey)
Checking for IPsec support in kernel                            [OK]
NETKEY detected, testing for disabled ICMP send_redirects       [OK]
NETKEY detected, testing for disabled ICMP accept_redirects     [OK]
Checking for RSA private key (/etc/ipsec.secrets)               [OK]
Checking that pluto is running                                  [OK]
Two or more interfaces found, checking IP forwarding            [OK]
Checking NAT and MASQUERADEing
Checking for 'ip' command                                       [OK]
Checking for 'iptables' command                                 [OK]

Opportunistic Encryption DNS checks:
   Looking for TXT in forward dns zone: Georouter.gsystems.com.ar       [MISSING]
   Does the machine have at least one non-private address?      [OK]
   Looking for TXT in reverse dns zone: 117.168.61.200.in-addr.arpa.    [MISSING]





R. Dario

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