Hello,
On Sat, 20 Feb 2021 21:14:24 +0100
Radek <r...@int.pl> wrote:
> I have a router with VPN server (npppd). LAN net is 10.109.3.0/24, gw
> 10.109.3.254, the VPN net is 10.109.4.0/24, gw 10.109.4.254.
> If the client is conencted to VPN all client's traffic to 10.0.0.0/8 goes via
> 10.109.4.254
>
> client> route print
> Network Destination Netmask Gateway Interface Metric
> 0.0.0.0 0.0.0.0 192.168.1.1 192.168.1.101
> 20
> 10.0.0.0 255.0.0.0 10.109.4.254 10.109.4.1
> 21
> 10.109.4.1 255.255.255.255 On-link 10.109.4.1
> 276
> [...]
The interface which terminate the tunnel has "192.168.4.254".
Right?
> $ cat /etc/npppd/npppd-users
> rdk:\
> :password=passsssword:\
> :framed-ip-address=10.109.4.1:
> #:framed-ip-netmask=255.255.255.0:
How about if you configure the npppd-users
rdk:
:password=passsssword:\
:framed-ip-address=10.109.4.254:\
:framed-ip-netmask=255.255.255.0:
?
The server (npppd) will configure a route for 10.109.4.0/24 to the PPP
session authenticated by the above "rdk".
On Sat, 20 Feb 2021 21:14:24 +0100
Radek <r...@int.pl> wrote:
> Hi,
> I have a router with VPN server (npppd). LAN net is 10.109.3.0/24, gw
> 10.109.3.254, the VPN net is 10.109.4.0/24, gw 10.109.4.254.
> If the client is conencted to VPN all client's traffic to 10.0.0.0/8 goes via
> 10.109.4.254
>
> client> route print
> Network Destination Netmask Gateway Interface Metric
> 0.0.0.0 0.0.0.0 192.168.1.1 192.168.1.101
> 20
> 10.0.0.0 255.0.0.0 10.109.4.254 10.109.4.1
> 21
> 10.109.4.1 255.255.255.255 On-link 10.109.4.1
> 276
> [...]
>
> I need to redirect the traffic to 10.109.4.254 only if it goes to the remote
> LAN (10.109.3.0/24), the rest should go via def gw.
> How can I configure it on the router/server side ?
>
> $ cat /etc/npppd/npppd.conf
> # $OpenBSD: npppd.conf,v 1.3 2020/01/23 03:01:22 dlg Exp $
> # sample npppd configuration file. see npppd.conf(5)
>
> set max-session 200
> set user-max-session 4
>
> authentication LOCAL type local {
> users-file "/etc/npppd/npppd-users"
> }
> tunnel L2TP protocol l2tp {
> listen on X.X.X.X
> }
>
> ipcp IPCP {
> pool-address 10.109.4.1-10.109.4.32
> dns-servers 1.1.1.1
> }
>
> # use pppx(4) interface. use an interface per a ppp session.
> interface pppx0 address 10.109.4.254 ipcp IPCP
> bind tunnel from L2TP authenticated by LOCAL to pppx0
>
> $ cat /etc/npppd/npppd-users
> rdk:\
> :password=passsssword:\
> :framed-ip-address=10.109.4.1:
> #:framed-ip-netmask=255.255.255.0:
>
> $ dmesg | head
> OpenBSD 6.8 (GENERIC.MP) #4: Mon Jan 11 10:35:56 MST 2021
>
> r...@syspatch-68-amd64.openbsd.org:/usr/src/sys/arch/amd64/compile/GENERIC.MP
>
> --
> Radek
>
