Results of my attempt to setup routing after connect

gistfile1.txt

# ip route show
default via 192.168.1.1 dev eth0  proto static 
169.254.0.0/16 dev eth0  scope link  metric 1000 
192.168.1.0/24 dev eth0  proto kernel  scope link  src 192.168.1.4  metric 1 

# ip route flush table vpn
# ip route del 46.246.33.0/24 dev tun0
# ip route add 46.246.33.0/24 dev tun0 table vpn
# ip route add default via 46.246.33.1 dev tun0 table vpn
RTNETLINK answers: No such process
# ip rule add from 46.246.33.195 table vpn priority 2
# ip route flush table cache

# ip route show
default via 192.168.1.1 dev eth0  proto static 
169.254.0.0/16 dev eth0  scope link  metric 1000 
192.168.1.0/24 dev eth0  proto kernel  scope link  src 192.168.1.4  metric 1 

# ip rule show
0:      from all lookup local 
2:      from 46.246.33.195 lookup vpn 
32766:  from all lookup main 
32767:  from all lookup default 

# ping -c 1 -w 1 -I eth0 google.com
PING google.com (74.125.225.0) from 192.168.1.4 eth0: 56(84) bytes of data.
64 bytes from ord08s12-in-f0.1e100.net (74.125.225.0): icmp_req=1 ttl=53 time=1.92 ms

--- google.com ping statistics ---
1 packets transmitted, 1 received, 0% packet loss, time 0ms
rtt min/avg/max/mdev = 1.924/1.924/1.924/0.000 ms

# ping -c 1 -w 1 -I tun0 google.com
PING google.com (74.125.225.7) from 46.246.33.195 tun0: 56(84) bytes of data.

--- google.com ping statistics ---
2 packets transmitted, 0 received, 100% packet loss, time 999ms