[strongSwan] help setting up connection for 1 type of traffic

Lewis Robson robsonl at conscious.co.uk
Wed Jul 14 12:42:32 CEST 2021


Just a follow up, its the auto line that stops connection, not the type


Thanks


On 14/07/2021 11:30, Lewis Robson wrote:
> Hello all.
>
> Ive been stuck on this one for many, many hours now!
>
> I am trying to set up a connection (split routing?) that will allow 1 
> type of traffic, and the rest will be normally routed through the 
> users device as per there usual connection.
>
> e.g. if they hit x ip address with y service, it will be allowed 
> through, otherwise if they went to google and did a whats my ip, there 
> current ip will show and not the ipsec ip.
>
>
>
> with my current set up, ipsec is working but users get the ipsec ip, 
> if i set to transport mode, I can still connect to the vpn however it 
> stops me being able to ssh on until i stop the strongswan service)
>
> here is my config
>
> conn into-ext-vpn
>         auto=route
>         compress=no
>         type=tunnel
>         keyexchange=ikev2
>         fragmentation=yes
>         forceencaps=yes
>         dpdaction=clear
>         dpddelay=300s
>         rekey=no
>         left=%any
>         leftid=servers external ip
>         leftcert=server-cert.pem
>         leftsendcert=always
>         leftsubnet=0.0.0.0/0
>         right=%any
>         rightid=%any
>         rightauth=eap-mschapv2
>         rightsourceip=10.0.3.0/24
>         rightdns=8.8.8.8,8.8.4.4
>         rightsendcert=never
>         eap_identity=%identity
> ike=chacha20poly1305-sha512-curve25519-prfsha512,aes256gcm16-sha384-prfsha384-ecp384,aes256-sha1-modp1024,aes128-sha1-modp1024,3des-sha1-modp1024! 
>
> esp=chacha20poly1305-sha512,aes256gcm16-ecp384,aes256-sha256,aes256-sha1,3des-sha1! 
>
>
>
> please can someone advise on how to go about setting it up so that i 
> can have users connect in when they request 1 specific service, 
> otherwise they continue to use there current network
>
>
> thankyou
>
>
-- 
Lewis Robson
Systems Administrator
Conscious Solutions Limited

Tel: 0117 325 0200
Web: https://www.conscious.co.uk



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