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Unable to route all traffic through VPN

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Alex

I'm able to connect to a SonicWall PPP VPN via their NetExtender client. While connected, I'm not able to access certain private domains that I expect to be able to access. I believe this is because not all of my traffic is routed through the VPN (wrong assumption?). I would like to route all my traffic through the VPN to see if I can access those domains.

I have tried the solution often proposed for this problem:

ip route del default
ip route add default via 10.1.130.104 #IP of my ppp0 route

But this leaves me with no connection.

Here are some useful outputs from my system while connected to the VPN

ifconfig:

ppp0: flags=4305<UP,POINTOPOINT,RUNNING,NOARP,MULTICAST>  mtu 1280
    inet 10.1.130.104  netmask 255.255.255.255  destination 192.0.2.1
    ppp  txqueuelen 3  (Point-to-Point Protocol)
    RX packets 25  bytes 2619 (2.5 KiB)
    RX errors 0  dropped 0  overruns 0  frame 0
    TX packets 26  bytes 1405 (1.3 KiB)
    TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

wlp0s20f3: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
    inet 192.168.1.113  netmask 255.255.255.0  broadcast 192.168.1.255
    inet6 fe80::9045:a6b4:b925:aeba  prefixlen 64  scopeid 0x20<link>
    ether a8:64:f1:31:0f:c4  txqueuelen 1000  (Ethernet)
    RX packets 288919  bytes 370538990 (353.3 MiB)
    RX errors 0  dropped 2  overruns 0  frame 0
    TX packets 55193  bytes 8574058 (8.1 MiB)
    TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

ip route:

default via 192.168.1.1 dev wlp0s20f3 
10.1.12.0/22 via 10.1.130.104 dev ppp0 scope link 
10.1.48.0/22 via 10.1.130.104 dev ppp0 scope link 
10.1.100.0/24 via 10.1.130.104 dev ppp0 scope link 
148.76.129.42 via 192.168.1.1 dev wlp0s20f3 
192.0.2.1 dev ppp0 proto kernel scope link src 10.1.130.104 
192.168.1.0/24 dev wlp0s20f3 proto kernel scope link src 192.168.1.113 metric 600 
192.168.1.1 dev wlp0s20f3 scope link

How can I route all my traffic through the VPN?

Thanks!

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in flag
NiKiZe
Before deleting your default route, you first need to add a new route to the VPN server via your normal default route.
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