Hi Christopher,

 Thanks for the response. I want to access the CentOS IPSec server which is the having tunneling enable from other system through SSH. In the mean time other OpenWRT client should also be able cur/wget through the tunnel. Both SSH and http fails while tunnel is established.


Tried with the following but doesn't works.
https://wiki.strongswan.org/issues/2351
https://serverfault.com/questions/601143/ssh-not-working-over-ipsec-tunnel-strongswan


Thanks
Sujoy


On Monday 05 March 2018 11:46 AM, Christopher Bachner wrote:
Hi Sujoy,

Do you route all traffic through the ipsec tunnel at the moment?

Or is your goal to access the CentOS sever through ipsec?

Cheers,

Christopher

On Mar 5, 2018 07:05, Sujoy <[email protected]> wrote:

    Hi Jafar,

     I have successfully establish connection with tunneling between
    OpenWRT client and CentOS as StrongSwan server. Now I am facing
    one issue. How to enable ssh and http through IPSec tunnel in
    StrongSwan.



    Thanks
    Sujoy

    On Friday 23 February 2018 09:05 PM, Jafar Al-Gharaibeh wrote:

        Sujoy,

        You have to send me the logs from both ends. It is hard to
        know what is the problem with no logs.

        --Jafar

        On 2/21/2018 8:58 AM, Sujoy wrote:

            Thanks Jafar, for giving this information. Please let me
            know if anything else is required. The client OS is
            Openwrt, so no logs are available.


            *Server Config*

            config setup
                    charondebug="ike 3, net 3, mgr 3, esp 3, chd 3,
            dmn 3, cfg 3, knl 3"
                    strictcrlpolicy=no
                    uniqueids=no
            conn %default
            conn tunnel #
                   left=%any
                   right=%any
                   ike=aes256-sha1-modp2048
                   esp=aes256-sha1
                   keyingtries=1
                   keylife=20
                   dpddelay=30s
                   dpdtimeout=150s
                   dpdaction=restart
                   authby=psk
                   auto=start
                   keyexchange=ikev2
                   type=tunnel

            # /etc/ipsec.secrets - strongSwan IPsec secrets file
            : PSK "XXXXXXX"



               [host@VPNTEST ~]# firewall-cmd --list-all
            FirewallD is not running
            [host@VPNTEST ~]# sestatus
            SELinux status:                 disabled
            [host@VPNTEST ~]# iptables -L
            Chain INPUT (policy ACCEPT)
            target     prot opt source destination

            Chain FORWARD (policy ACCEPT)
            target     prot opt source destination

            Chain OUTPUT (policy ACCEPT)
            target     prot opt source destination



            *Client config and status*

                    config setup

                    charondebug="ike 3, net 3, mgr 3, esp 3, chd 3,
            dmn 3, cfg 3, knl 3"
                    strictcrlpolicy=no
                    uniqueids=no
            conn %default
            conn tunnel #
                   left=%any
                   #right=192.168.10.40
                   right=182.156.253.59
                   ike=aes256-sha1-modp2048
                   esp=aes256-sha1
                   keyingtries=1
                   keylife=20
                   dpddelay=30s
                   dpdtimeout=150s
                   dpdaction=restart
                   authby=psk
                   auto=start
                   keyexchange=ikev2
                   type=tunnel

            # /etc/ipsec.secrets - strongSwan IPsec secrets file
            : PSK "XXXXXXX"


            root@Device_BD2009:~# ipsec statusall
            no files found matching '/etc/strongswan.d/*.conf'
            Status of IKE charon daemon (strongSwan 5.3.3, Linux
            3.10.49, mips):
              uptime: 22 minutes, since Feb 21 14:31:43 2018
              malloc: sbrk 196608, mmap 0, used 157560, free 39048
              worker threads: 11 of 16 idle, 5/0/0/0 working, job
            queue: 0/0/0/0, scheduled: 5
              loaded plugins: charon aes des rc2 sha1 sha2 md5 random
            nonce x509 revocation constraints pubkey pkcs1 pkcs7 pkcs8
            pkcs12 pgp dnskey sshkey pem openssl fips-prf gmp xcbc
            cmac hmac curl attr kernel-netlink resolve socket-default
            stroke updown eap-identity eap-md5 xauth-generic
            Listening IP addresses:
              192.168.20.100
              192.168.10.1
              fd70:5f2:3744::1
            Connections:
                  tunnel:  %any...X.X.X.X  IKEv2, dpddelay=30s
                  tunnel:   local:  uses pre-shared key authentication
                  tunnel:   remote: [X.X.X.X] uses pre-shared key
            authentication
                  tunnel:   child:  dynamic === dynamic TUNNEL,
            dpdaction=restart
            Security Associations (1 up, 0 connecting):
                  tunnel[1]: ESTABLISHED 22 minutes ago,
            192.168.20.100[192.168.20.100]...X.X.X.X[X.X.X.X]
                  tunnel[1]: IKEv2 SPIs: 031ec8d3758cc169_i*
            a8c47adc292f6d3f_r, pre-shared key reauthentication in 2 hours
                  tunnel[1]: IKE proposal:
            AES_CBC_256/HMAC_SHA1_96/PRF_HMAC_SHA1/MODP_2048



            On Tuesday 20 February 2018 09:20 PM, Jafar Al-Gharaibeh
            wrote:

                Sujoy,

                   It is really hard to help you if don't give us full
                information only sending us one picture at a time.
                Please use test files, they are easier to navigate
                than screen shots. Your last question below is a
                repeat to a question that I answered before. If you
                want proper diagnose of the problem please send the
                configuration files,logs, routing table at both ends.
                see 8 at:

                
https://wiki.strongswan.org/projects/strongswan/wiki/HelpRequests

                Make sure to increase the debug level in your
                ipsec.conf files at both ends, something like:

                config setup
                       charondebug="ike 3, net 3, mgr 3, esp 3, chd 3,
                dmn 3, cfg 3, knl 3"


                Regards,
                Jafar


                On 2/20/2018 8:00 AM, Sujoy wrote:

                    Hi Jafar,

                    I am able to establish tunnel when I try to
                    connect from LAN IP. But with same
                    configuration(Firewall setting) and same OS
                    version it failed to establish tunnel with *nated
                    public IP*.

                    What means parsed "failed to establish CHILD_SA,
                    keeping IKE_SA". Please let me know if you have
                    any idea regarding this issue.







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