VPN Networking Issues. Subnet can't go through already established tunnel.How to fix?

Highjo · 08-11-2014, 10:27 AM

Hello All,

I am not an expert but an anthousiaste who have been trying his hands around lots of networking stuff.

I have been tasked to setup a VPN with a client. Which I did. Used VyOS(192.168.5.25) on amazon VPC(192.168.5.0/24) and set 2 tunnels and everything. From VyOS box I can ping the other network IP 10.2.0.10.

I have created another box on my amazon VPC which has the IP 192.168.5.40 and it can't ping 10.2.0.10. I have seen somewhere That it's gateway should be set to VyOS ip so I did so

Code:

sudo route add -net 0.0.0.0/0 gw 192.168.5.25

Code:

ubuntu@ip-192-168-5-40:~$ route
Kernel IP routing table
Destination     Gateway         Genmask         Flags Metric Ref    Use Iface
default         192.168.5.25  0.0.0.0         UG    0      0        0 eth0
default         192.168.5.1   0.0.0.0         UG    0      0        0 eth0
192.168.5.0   *               255.255.255.0   U     0      0        0 eth0

Ping are still failling. I am half way through but can't still make client's network available to my network.

Can any networking guru shed some light? That will be really appreciated Thanks

Regards,

smallpond · 08-11-2014, 04:39 PM

Why do you have two gateways in your route table? The gateway should be on whatever machine is routing packets out to other networks.

Highjo · 08-12-2014, 04:55 AM

Thanks for your reply. 192.168.5.1 is the first eth in order to replace it I set the one I want it to use 192.168.5.25. I think each time I want to remove the actual default 192.168.5.1 the box becomes unaccessible . I was wondering weither I need a second ethernet interface. Because I access the box via ssh.

Questions: Can't I have different gateways for different subnets?