[strongSwan] IPSec Tunnel IP

Jafar Al-Gharaibeh jafar at atcorp.com
Thu Jan 11 18:37:48 CET 2018


you also have to delete the setting at the AP side, just get rid of this:

   ipsec     primary tunnel peer tunnel ip         :1.1.1.127

--Jafar

On 1/11/2018 2:06 AM, Yusuf Güngör wrote:
> Hi Jafar,
>
> I have tried both deleting "rightsubnet=0.0.0.0/0 <http://0.0.0.0/0>" 
> and adding "rightsubnet=%dynamic" now. AP still gets "1.1.1.127" as 
> peer tunnel ip.
>
> ipsec     primary tunnel peer tunnel ip        :1.1.1.127
> ipsec     primary tunnel ap tunnel ip           :10.254.0.1
>
> The problem caused from AP side?
>
>
> 2018-01-10 21:00 GMT+03:00 Jafar Al-Gharaibeh <jafar at atcorp.com 
> <mailto:jafar at atcorp.com>>:
>
>     Yusuf,
>
>       Have you tried deleting "rightsubnet=0.0.0.0/0
>     <http://0.0.0.0/0>" as Noel suggested below?
>
>       In a dynamic address setup like this I usually do (Which has the
>     same effect of deleting it):
>
>       rightsubnet=%dynamic
>
>
>     --Jafar
>
>
>     On 1/10/2018 4:28 AM, Yusuf Güngör wrote:
>>     Hi Noel,
>>
>>     We have APs which located at various locations. APs get ip from
>>     strongswan.
>>
>>     We have to add the "rightsubnet=0.0.0.0/0 <http://0.0.0.0/0>" to
>>     let APs connect. (We do not know the APs private-public ip addreses)
>>
>>     We have to add the "rightsourceip=10.254.0.0/24
>>     <http://10.254.0.0/24>" to give APs tunnel ip.
>>
>>     APs can get ip from the "righsourceip" pool successfully:
>>
>>         ipsec  primary tunnel ap tunnel ip  :10.254.0.1
>>
>>
>>     But why peer tunnel ip is "1.1.1.127"
>>
>>         ipsec  primary tunnel peer tunnel ip  :1.1.1.127
>>
>>
>>     We can establish vpn connections from APs to Aruba Controllers
>>     and that time APs get ip addresses as expected:
>>
>>         ipsec     primary tunnel ap tunnel ip           :10.254.0.1
>>
>>         ipsec     primary tunnel peer tunnel ip         :<public ip
>>         of aruba controller>
>>         *
>>         *
>>
>>     We are missing something?
>>
>>     Also, VPN connection to strongswan restarts about every 3 hours.
>>     AP disconnect and reconnect because of packet loss. This should
>>     be subject of another topic, i wrote if something is related with
>>     that.
>>
>>     Thanks for help.
>>
>>     2017-12-28 16:12 GMT+03:00 Noel Kuntze
>>     <noel.kuntze+strongswan-users-ml at thermi.consulting
>>     <mailto:noel.kuntze+strongswan-users-ml at thermi.consulting>>:
>>
>>         Hello,
>>
>>         It's because you set "rightsubnet=0.0.0.0/0
>>         <http://0.0.0.0/0>" and evidently the AP proposes "1.1.1.127"
>>         as its local TS, so it gets narrowed to that. I propose you
>>         delete those two lines.
>>
>>         Kind regards
>>
>>         Noel
>>
>>         On 27.12.2017 11:01, Yusuf Güngör wrote:
>>         > Hi,
>>         >
>>         > I have a configuration like below and VPN connection
>>         successfully established but client side get "1.1.1.127" as
>>         tunnel IP. Can we change this tunnel IP? I can not find any
>>         clue about why StrongSwan assign "1.1.1.127" as tunnel IP to
>>         clients?
>>         >
>>         > Thanks.
>>         >
>>         >
>>         > *StrongSwan Config (Left)*
>>         >
>>         >     conn vpn-test
>>         >       left=%defaultroute
>>         >       leftsubnet=172.30.1.1/25 <http://172.30.1.1/25>
>>         <http://172.30.1.1/25>
>>         >       leftauth=psk
>>         >       leftfirewall=no
>>         >       right=%any
>>         >       rightsubnet=0.0.0.0/0 <http://0.0.0.0/0>
>>         <http://0.0.0.0/0>
>>         >       rightsourceip=10.254.0.0/24 <http://10.254.0.0/24>
>>         <http://10.254.0.0/24>
>>         >       auto=add
>>         >       keyexchange=ikev1
>>         >       rightauth=psk
>>         >       rightauth2=xauth
>>         >       type=tunnel
>>         >       mobike=yes
>>         >       rightid=%any
>>         >
>>         >
>>         > *Client VPN Status: (Aruba Instant AP - Right)*
>>         >
>>         >     current using tunnel               :primary tunnel
>>         >     current tunnel using time                :1 hour 43
>>         minutes 31 seconds
>>         >     ipsec is preempt status                :disable
>>         >     ipsec is fast failover status                :disable
>>         >     ipsec hold on period               :0s
>>         >     ipsec tunnel monitor frequency (seconds/packet) :5
>>         >     ipsec tunnel monitor timeout by lost packet cnt :6
>>         >
>>         >     ipsec     primary tunnel crypto type            :PSK
>>         >     ipsec     primary tunnel peer address         
>>          :52.55.49.104
>>         >     ipsec     primary tunnel peer tunnel ip         :1.1.1.127
>>         >     ipsec     primary tunnel ap tunnel ip           :10.254.0.1
>>         >     ipsec     primary tunnel using interface        :tun0
>>         >     ipsec     primary tunnel using MTU              :1230
>>         >     ipsec     primary tunnel current sm status      :Up
>>         >     ipsec     primary tunnel tunnel status          :Up
>>         >     ipsec     primary tunnel tunnel retry times     :6
>>         >     ipsec     primary tunnel tunnel uptime          :1 hour
>>         43 minutes 31 seconds
>>         >
>>         >     ipsec      backup tunnel crypto type            :PSK
>>         >     ipsec      backup tunnel peer address           :N/A
>>         >     ipsec      backup tunnel peer tunnel ip         :N/A
>>         >     ipsec      backup tunnel ap tunnel ip           :N/A
>>         >     ipsec      backup tunnel using interface        :N/A
>>         >     ipsec      backup tunnel using MTU              :N/A
>>         >     ipsec      backup tunnel current sm status      :Init
>>         >     ipsec      backup tunnel tunnel status          :Down
>>         >     ipsec      backup tunnel tunnel retry times     :0
>>         >     ipsec      backup tunnel tunnel
>>         >
>>         >
>>
>>
>
>

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