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<p>Hi Jafar,<br>
</p>
<p>Following is the logs and configuration of the other node. Cannot
solve this issue for last thirty days. <br>
</p>
<p><br>
</p>
<p><img src="cid:part1.A1D017E4.4C86C3D3@mindlogicx.com" alt=""
width="1378" height="662"></p>
<div class="moz-signature"><br>
Config setup<br>
<img src="cid:part2.B9DD1320.1B3EA704@mindlogicx.com" alt=""><br>
<br>
ipsec.Secrets<br>
<br>
: PSK "abc123"<br>
<br>
<br>
<br>
</div>
<div class="moz-cite-prefix">On Saturday 10 February 2018 12:38 AM,
Jafar Al-Gharaibeh wrote:<br>
</div>
<blockquote type="cite"
cite="mid:38b6a698-0b07-57f2-b1ef-cb50b7fc17a1@atcorp.com">
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
Can you send the logs from the other side? the one that
generates the TS_UNACCEPTABLE notify.<br>
<br>
--Jafar<br>
<br>
<div class="moz-cite-prefix">On 2/9/2018 12:31 AM, Sujoy wrote:<br>
</div>
<blockquote type="cite"
cite="mid:222b6609-6ba5-0147-2076-0dafdcf09160@mindlogicx.com">
<meta http-equiv="Content-Type" content="text/html;
charset=utf-8">
<p>Hi Jafar/Noel, <br>
</p>
<p>What means " received TS_UNACCEPTABLE notify, no CHILD_SA
built [IKE] failed to establish CHILD_SA, keeping IKE_SA" .
Same error comes in the new installed Linux also. <br>
</p>
<p><br>
</p>
<p>root@client:~# ipsec up tunnel<br>
initiating IKE_SA tunnel[1] to 192.168.10.40<br>
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) ]<br>
sending packet: from 192.168.10.38[500] to 192.168.10.40[500]
(464 bytes)<br>
received packet: from 192.168.10.40[500] to 192.168.10.38[500]
(456 bytes)<br>
parsed IKE_SA_INIT response 0 [ SA KE No N(NATD_S_IP)
N(NATD_D_IP) N(HASH_ALG) N(MULT_AUTH) ]<br>
remote host is behind NAT<br>
no IDi configured, fall back on IP address<br>
authentication of '192.168.10.38' (myself) with pre-shared key<br>
establishing CHILD_SA tunnel{1}<br>
generating IKE_AUTH request 1 [ IDi N(INIT_CONTACT) IDr AUTH
SA TSi TSr N(MOBIKE_SUP) N(ADD_4_ADDR) N(ADD_4_ADDR)
N(ADD_4_ADDR) N(ADD_4_ADDR) N(ADD_4_ADDR) N(ADD_4_ADDR)
N(ADD_4_ADDR) N(ADD_4_ADDR) N(MULT_AUTH) N(EAP_ONLY)
N(MSG_ID_SYN_SUP) ]<br>
sending packet: from 192.168.10.38[4500] to
192.168.10.40[4500] (368 bytes)<br>
received packet: from 192.168.10.40[4500] to
192.168.10.38[4500] (160 bytes)<br>
parsed IKE_AUTH response 1 [ IDr AUTH N(MOBIKE_SUP)
N(ADD_4_ADDR) N(TS_UNACCEPT) ]<br>
authentication of '192.168.10.40' with pre-shared key
successful<br>
IKE_SA tunnel[1] established between
192.168.10.38[192.168.10.38]...192.168.10.40[192.168.10.40]<br>
scheduling rekeying in 2642s<br>
maximum IKE_SA lifetime 3182s<br>
received TS_UNACCEPTABLE notify, no CHILD_SA built<br>
failed to establish CHILD_SA, keeping IKE_SA<br>
peer supports MOBIKE<br>
establishing connection 'tunnel' failed<br>
<br>
</p>
<p><br>
</p>
<div class="moz-signature"><br>
Feb 9 11:55:44 localhost charon: 14[NET] sending packet: from
192.168.10.38[4500] to 192.168.10.40[4500] (368 bytes)<br>
Feb 9 11:55:44 localhost charon: 16[NET] received packet:
from 192.168.10.40[4500] to 192.168.10.38[4500] (160 bytes)<br>
Feb 9 11:55:44 localhost charon: 16[ENC] parsed IKE_AUTH
response 1 [ IDr AUTH N(MOBIKE_SUP) N(ADD_4_ADDR)
N(TS_UNACCEPT) ]<br>
Feb 9 11:55:44 localhost charon: 16[IKE] authentication of
'192.168.10.40' with pre-shared key successful<br>
Feb 9 11:55:44 localhost charon: 16[IKE] IKE_SA tunnel[1]
established between
192.168.10.38[192.168.10.38]...192.168.10.40[192.168.10.40]<br>
Feb 9 11:55:44 localhost charon: 16[IKE] scheduling rekeying
in 2642s<br>
Feb 9 11:55:44 localhost charon: 16[IKE] maximum IKE_SA
lifetime 3182s<br>
<b>Feb 9 11:55:44 localhost charon: 16[IKE] received
TS_UNACCEPTABLE notify, no CHILD_SA built</b><b><br>
</b><b>Feb 9 11:55:44 localhost charon: 16[IKE] failed to
establish CHILD_SA, keeping IKE_SA</b><br>
Feb 9 11:55:44 localhost charon: 16[IKE] peer supports MOBIKE<br>
<br>
<br>
Thanks</div>
<div class="moz-cite-prefix">On Friday 09 February 2018 11:21
AM, Sujoy wrote:<br>
</div>
<blockquote type="cite"
cite="mid:b0bdab0b-78f5-3841-fd74-360f5dd62d83@mindlogicx.com">
<meta http-equiv="Content-Type" content="text/html;
charset=utf-8">
<p>Thanks Jafar, for the update. But after setting up without
subnet and "type=tunnel or transport" it shows the same
error "failed to establish CHILD_SA, keeping IKE_SA. What
should be issue. <br>
</p>
<p><img src="cid:part3.0163BEA5.EA00AB47@mindlogicx.com"
alt="" class=""> <img
src="cid:part4.B9DF74A0.22406761@mindlogicx.com" alt=""
class="" width="733" height="223"></p>
<div class="moz-signature"><br>
Thanks <br>
<br>
</div>
<div class="moz-cite-prefix">On Friday 09 February 2018 01:53
AM, Jafar Al-Gharaibeh wrote:<br>
</div>
<blockquote type="cite"
cite="mid:d678256e-0513-d601-5837-9a9b98b68f1a@atcorp.com">
<meta http-equiv="Content-Type" content="text/html;
charset=utf-8">
Sujoy,<br>
<br>
Just to make sure everything is working OK. Try setting:<br>
<br>
left=192.168.10.40<br>
right=192.168.10.38<br>
<br>
and <br>
<br>
left=192.168.10.38<br>
right=192.168.10.40<br>
<br>
Comment out left/rightsubnet configs. They should default to
the same IP addresses as left/right.<br>
<br>
--Jafar<br>
<br>
<br>
<div class="moz-cite-prefix">On 2/8/2018 12:26 AM, Sujoy
wrote:<br>
</div>
<blockquote type="cite"
cite="mid:24a9deac-1dd5-49c1-e7f3-feb6bd5f6357@mindlogicx.com">
<meta http-equiv="Content-Type" content="text/html;
charset=utf-8">
Hi Jafar, Peer is also using strongswan 5.3.3.
following is the configuration. We need tunnel because
once it is connected in LAN we want to implement in
WAN/Internet. Output of the 192.168.10.40 is bellow. <br>
<br>
Config setup<br>
charondebug="all"<br>
uniqueids=yes<br>
strictcrlpolicy=yes<br>
conn %default<br>
conn tunnel #<br>
left=%any<br>
right=192.168.10.38<br>
rightsubnet=192.168.10.38/24<br>
ike=aes256-sha1-modp2048!<br>
esp=aes256-sha1-modp2048!<br>
keyingtries=1<br>
ikelifetime=1h<br>
lifetime=8h<br>
dpddelay=30<br>
#dpdtimeout=120<br>
dpdaction=restart<br>
authby=psk<br>
auto=route<br>
keyexchange=ikev2<br>
type=tunnel<br>
<br>
<p>root@server:~# ipsec statusall<br>
Status of IKE charon daemon (strongSwan 5.3.3, Linux
4.4.0-112-generic, x86_64):<br>
uptime: 114 minutes, since Feb 08 09:58:49 2018<br>
malloc: sbrk 2703360, mmap 0, used 513168, free
2190192<br>
worker threads: 7 of 16 idle, 5/0/4/0 working, job
queue: 0/0/0/0, scheduled: 5<br>
loaded plugins: charon aes kernel-libipsec 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
xauth-generic<br>
Listening IP addresses:<br>
192.168.10.40<br>
10.8.0.1<br>
Connections:<br>
tunnel: %any...192.168.10.38 IKEv2, dpddelay=30s<br>
tunnel: local: uses pre-shared key
authentication<br>
tunnel: remote: [192.168.10.38] uses pre-shared
key authentication<br>
tunnel: child: dynamic === 192.168.10.0/24
TUNNEL, dpdaction=restart<br>
Security Associations (1 up, 0 connecting):<br>
tunnel[3]: ESTABLISHED 25 minutes ago,
192.168.10.40[192.168.10.40]...192.168.10.38[192.168.10.38]<br>
tunnel[3]: IKEv2 SPIs: c1a42433ade9fa28_i
a52cfea6d767c397_r*, pre-shared key reauthentication in
24 minutes<br>
tunnel[3]: IKE proposal:
AES_CBC_256/HMAC_SHA1_96/PRF_HMAC_SHA1/MODP_2048<br>
<br>
</p>
<br>
<div class="moz-signature"><br>
Thanks <br>
<br>
</div>
<div class="moz-cite-prefix">On Wednesday 07 February 2018
09:06 PM, Jafar Al-Gharaibeh wrote:<br>
</div>
<blockquote type="cite"
cite="mid:32aecd44-a585-6ce3-08d8-0c788516188c@atcorp.com">
<meta http-equiv="Content-Type" content="text/html;
charset=utf-8">
<br>
<br>
<div class="moz-cite-prefix">On 2/7/2018 9:22 AM, Sujoy
wrote:<br>
</div>
<blockquote type="cite"
cite="mid:ed47c3e7-77cb-eb89-8921-202ed5ddca9c@mindlogicx.com">
<meta http-equiv="Content-Type" content="text/html;
charset=utf-8">
<p>Thanks Jafar, for the reply. But after removing
subnet from the config also tunneling failed. Is
there any issue with the version of strongswan
5.3.3. What means "TS_UNACCEPTABLE notify, no
CHILD_SA built"<br>
</p>
</blockquote>
"TS_UNACCEPTABLE notify" means the peer didn't like the
proposed traffic selector. The log shows that your IKE
SA is up, so you don't have a problem there. I can't
tell you what your rightsubnet should be unless you tell
us more about the setup you have. What is your peer
running? is it also strongSwan? <br>
<br>
If you only want to encrypt traffic from 192.168.10.38
to 192.168.10.40 and you don't have other subnets/hosts,
you can switch the connection type to transport mode
("type=trasnport"). Both sides must agree on this.
transport doesn't require left/rightsubnets. <br>
<br>
--Jafar<br>
<br>
<blockquote type="cite"
cite="mid:ed47c3e7-77cb-eb89-8921-202ed5ddca9c@mindlogicx.com">
<p> </p>
<p> <br>
</p>
<p> Config setup<br>
</p>
<p> charondebug="all"<br>
uniqueids=yes<br>
strictcrlpolicy=yes<br>
conn %default<br>
conn tunnel #<br>
left=%any<br>
right=192.168.10.40<br>
ike=aes256-sha1-modp2048!<br>
esp=aes256-sha1-modp2048!<br>
keyingtries=1<br>
ikelifetime=1h<br>
lifetime=8h<br>
dpddelay=30<br>
#dpdtimeout=120<br>
dpdaction=restart<br>
authby=secret<br>
auto=route<br>
keyexchange=ikev2<br>
type=tunnel<br>
<br>
</p>
<p><br>
</p>
<p>root@client:~# ipsec up tunnel<br>
initiating IKE_SA tunnel[1] to 192.168.10.40<br>
generating IKE_SA_INIT request 0 [ SA KE No
N(NATD_S_IP) N(NATD_D_IP) N(HASH_ALG) ]<br>
sending packet: from 192.168.10.38[500] to
192.168.10.40[500] (448 bytes)<br>
received packet: from 192.168.10.40[500] to
192.168.10.38[500] (456 bytes)<br>
parsed IKE_SA_INIT response 0 [ SA KE No
N(NATD_S_IP) N(NATD_D_IP) N(HASH_ALG) N(MULT_AUTH) ]<br>
remote host is behind NAT<br>
no IDi configured, fall back on IP address<br>
authentication of '192.168.10.38' (myself) with
pre-shared key<br>
establishing CHILD_SA tunnel<br>
generating IKE_AUTH request 1 [ IDi N(INIT_CONTACT)
IDr AUTH SA TSi TSr N(MOBIKE_SUP) N(ADD_4_ADDR)
N(ADD_4_ADDR) N(ADD_4_ADDR) N(ADD_4_ADDR)
N(ADD_4_ADDR) N(ADD_4_ADDR) N(ADD_4_ADDR)
N(ADD_4_ADDR) N(MULT_AUTH) N(EAP_ONLY) ]<br>
sending packet: from 192.168.10.38[4500] to
192.168.10.40[4500] (348 bytes)<br>
received packet: from 192.168.10.40[4500] to
192.168.10.38[4500] (156 bytes)<br>
parsed IKE_AUTH response 1 [ IDr AUTH N(AUTH_LFT)
N(MOBIKE_SUP) N(ADD_4_ADDR) N(TS_UNACCEPT) ]<br>
authentication of '192.168.10.40' with pre-shared
key successful<br>
IKE_SA tunnel[1] established between
192.168.10.38[192.168.10.38]...192.168.10.40[192.168.10.40]<br>
scheduling reauthentication in 2819s<br>
maximum IKE_SA lifetime 3359s<br>
<b>received TS_UNACCEPTABLE notify, no CHILD_SA
built</b><b><br>
</b><b>failed to establish CHILD_SA, keeping IKE_SA</b><br>
received AUTH_LIFETIME of 2637s, scheduling
reauthentication in 2097s<br>
peer supports MOBIKE<br>
establishing connection 'tunnel' failed<br>
</p>
<p><br>
</p>
<p>root@client:~# ipsec statusall<br>
Status of IKE charon daemon <b>(strongSwan 5.3.3,
Linux 4.4.0-112-generic, x86_64)</b>:<br>
uptime: 2 minutes, since Feb 07 20:44:23 2018<br>
malloc: sbrk 2703360, mmap 0, used 519600, free
2183760<br>
worker threads: 7 of 16 idle, 5/0/4/0 working, job
queue: 0/0/0/0, scheduled: 4<br>
loaded plugins: charon aes kernel-libipsec 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 xauth-generic<br>
Listening IP addresses:<br>
192.168.10.38<br>
192.168.3.107<br>
<br>
Connections:<br>
tunnel: %any...192.168.10.40 IKEv2,
dpddelay=30s<br>
tunnel: local: uses pre-shared key
authentication<br>
tunnel: remote: [192.168.10.40] uses
pre-shared key authentication<br>
tunnel: child: dynamic === dynamic TUNNEL,
dpdaction=restart<br>
Security Associations (1 up, 0 connecting):<br>
tunnel[1]: ESTABLISHED 2 minutes ago,
192.168.10.38[192.168.10.38]...192.168.10.40[192.168.10.40]<br>
tunnel[1]: IKEv2 SPIs: 175dcf9cdcf11b38_i*
9cc05896738a5e45_r, pre-shared key reauthentication
in 32 minutes<br>
tunnel[1]: IKE proposal:
AES_CBC_256/HMAC_SHA1_96/PRF_HMAC_SHA1/MODP_2048<br>
<br>
</p>
<div class="moz-signature">Thanks<br>
<br>
</div>
<div class="moz-cite-prefix">On Wednesday 07 February
2018 08:31 PM, Jafar Al-Gharaibeh wrote:<br>
</div>
<blockquote type="cite"
cite="mid:090b72a6-679e-4426-00d7-36b56ab71f2c@atcorp.com">
<meta http-equiv="Content-Type" content="text/html;
charset=utf-8">
Sujoy,<br>
<br>
Are you sure about <br>
<br>
rightsubnet=192.168.10.0/32<br>
<br>
This subnet gets you nothing unless you know that
it has a special meaning in the config that I'm not
aware of. You can have the least significant octet
set to zero with a 32-bit netmask. What is the
rightsubnet that you are trying to protect? is it
all 192.168.10.0/24? or just one host like
192.168.10.100?<br>
<br>
--Jafar<br>
<br>
<br>
<br>
<div class="moz-cite-prefix">On 2/7/2018 12:44 AM,
Sujoy wrote:<br>
</div>
<blockquote type="cite"
cite="mid:2e766137-1a09-0455-12f6-1211cd7bfa85@mindlogicx.com">
<meta http-equiv="Content-Type"
content="text/html; charset=utf-8">
<p>Hi Noel,</p>
<p>Still cannot establish tunnel. logs doesn't
show anything. Can someone help to solve this. <br>
</p>
<p>Client configuration</p>
<p>config setup<br>
</p>
<p> charondebug="all"<br>
uniqueids=yes<br>
strictcrlpolicy=no<br>
conn %default<br>
conn tunnel #<br>
left=%any<br>
right=192.168.10.40<br>
rightsubnet=192.168.10.0/32<br>
ike=aes128-md5-modp1536<br>
esp=aes128-sha1<br>
keyingtries=%forever<br>
ikelifetime=1h<br>
lifetime=8h<br>
dpddelay=30<br>
#dpdtimeout=120<br>
#dpdaction=restart<br>
authby=secret<br>
auto=start<br>
keyexchange=ikev2<br>
type=tunnel<br>
mobike=no<br>
#pfs=no<br>
reauth=no<br>
<br>
</p>
<p>Server setup</p>
<p>config setup<br>
</p>
<p> charondebug="all"<br>
uniqueids=yes<br>
strictcrlpolicy=no<br>
conn %default<br>
conn tunnel #conn %default<br>
conn tunnel #<br>
left=%any<br>
right=192.168.10.40<br>
rightsubnet=192.168.10.0/32<br>
ike=aes128-md5-modp1536<br>
esp=aes128-sha1<br>
keyingtries=%forever<br>
ikelifetime=1h<br>
lifetime=8h<br>
dpddelay=30<br>
#dpdtimeout=120<br>
#dpdaction=restart<br>
authby=secret<br>
auto=start<br>
keyexchange=ikev2<br>
type=tunnel<br>
mobike=no<br>
#pfs=no<br>
reauth=no<br>
</p>
<p><br>
</p>
<div class="moz-signature">root@client:~# <b>ipsec
up tunnel</b><br>
initiating IKE_SA tunnel[2] to 192.168.10.40<br>
generating IKE_SA_INIT request 0 [ SA KE No
N(NATD_S_IP) N(NATD_D_IP) N(HASH_ALG) ]<br>
sending packet: from 192.168.10.38[500] to
192.168.10.40[500] (1064 bytes)<br>
received packet: from 192.168.10.40[500] to
192.168.10.38[500] (38 bytes)<br>
parsed IKE_SA_INIT response 0 [ N(INVAL_KE) ]<br>
peer didn't accept DH group MODP_2048, it
requested MODP_1536<br>
initiating IKE_SA tunnel[2] to 192.168.10.40<br>
generating IKE_SA_INIT request 0 [ SA KE No
N(NATD_S_IP) N(NATD_D_IP) N(HASH_ALG) ]<br>
sending packet: from 192.168.10.38[500] to
192.168.10.40[500] (1000 bytes)<br>
received packet: from 192.168.10.40[500] to
192.168.10.38[500] (392 bytes)<br>
parsed IKE_SA_INIT response 0 [ SA KE No
N(NATD_S_IP) N(NATD_D_IP) N(HASH_ALG)
N(MULT_AUTH) ]<br>
remote host is behind NAT<br>
no IDi configured, fall back on IP address<br>
authentication of '192.168.10.38' (myself) with
pre-shared key<br>
establishing CHILD_SA tunnel<br>
generating IKE_AUTH request 1 [ IDi
N(INIT_CONTACT) IDr AUTH SA TSi TSr N(MULT_AUTH)
N(EAP_ONLY) ]<br>
sending packet: from 192.168.10.38[4500] to
192.168.10.40[4500] (332 bytes)<br>
received packet: from 192.168.10.40[4500] to
192.168.10.38[4500] (108 bytes)<br>
parsed IKE_AUTH response 1 [ IDr AUTH
N(TS_UNACCEPT) ]<br>
authentication of '192.168.10.40' with
pre-shared key successful<br>
IKE_SA tunnel[2] established between
192.168.10.38[192.168.10.38]...192.168.10.40[192.168.10.40]<br>
scheduling rekeying in 2525s<br>
maximum IKE_SA lifetime 3065s<br>
<b>received TS_UNACCEPTABLE notify, no CHILD_SA
built</b><b><br>
</b><b>failed to establish CHILD_SA, keeping
IKE_SA</b><b><br>
</b><b>establishing connection 'tunnel' failed</b><br>
root@client:~# <br>
<br>
<br>
Ipsec statusall<br>
<br>
Status of IKE charon daemon (<b>strongSwan
5.3.3, Linux 4.4.0-112-generic, x86_64</b>):<br>
uptime: 41 seconds, since Feb 07 12:08:32 2018<br>
malloc: sbrk 2703360, mmap 0, used 519216,
free 2184144<br>
worker threads: 7 of 16 idle, 5/0/4/0 working,
job queue: 0/0/0/0, scheduled: 2<br>
loaded plugins: charon aes kernel-libipsec 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 xauth-generic<br>
Listening IP addresses:<br>
192.168.10.38<br>
192.168.3.107<br>
<br>
Connections:<br>
tunnel: %any...192.168.10.40 IKEv2<br>
tunnel: local: uses pre-shared key
authentication<br>
tunnel: remote: [192.168.10.40] uses
pre-shared key authentication<br>
tunnel: child: dynamic ===
192.168.10.0/32 TUNNEL<br>
Security Associations (1 up, 0 connecting):<br>
tunnel[1]: ESTABLISHED 41 seconds ago,
192.168.10.38[192.168.10.38]...192.168.10.40[192.168.10.40]<br>
tunnel[1]: IKEv2 SPIs: 53b251675b863a7d_i*
57d33cd8149f729f_r, rekeying in 41 minutes<br>
tunnel[1]: IKE proposal:
AES_CBC_128/HMAC_MD5_96/PRF_HMAC_MD5/MODP_1536<br>
<br>
<br>
</div>
<div class="moz-cite-prefix">On Tuesday 16 January
2018 11:23 PM, Noel Kuntze wrote:<br>
</div>
<blockquote type="cite"
cite="mid:47eaf00a-0170-2c97-19c8-68cb10b2891f@thermi.consulting">
<pre wrap="">Hi,
Check the logs of the remote side.
It means the remote peer did not like the proposed traffic selector. It was probably outside of the network range that its own configuration allows, meaning narrowing failed.
Kind regards
Noel
On 16.01.2018 07:25, Sujoy wrote:
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<pre wrap="">Hi Noel,
Same strongswan 5.3.3 configuration working in my VM(client) to desktop server. But not working from my OpenWRT to Global IP used nated Linux server. Can you help me to solve this.
what means "received TS_UNACCEPTABLE notify, no CHILD_SA built"
Server config file.
Thanks & Regards
Sujoy
On Thursday 04 January 2018 03:38 AM, Noel Kuntze wrote:
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<pre wrap="">Hi,
Only on the responder.
If you use dpd and enforce UDP encapsulation, you do not need to open any ports on the initiator side.
Refer to the UsableExamples wiki page[1] for example configurations that are usable in the real world.
Kind regards
Noel
[1] <a class="moz-txt-link-freetext" href="https://wiki.strongswan.org/projects/strongswan/wiki/UsableExamples" moz-do-not-send="true">https://wiki.strongswan.org/projects/strongswan/wiki/UsableExamples</a>
On 28.12.2017 08:51, Sujoy wrote:
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<pre wrap="">Hi All,
We want to implement StrongSwan,with IPsec in OpenWRT. IPSec server will be running in CentOS and the OpenWRt router will connect to it using VPN. I have configured the server part, struggling to configure the client part. Do we need to open port 4500 for this first.
Anyone can suggest any solution for this.
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