Route doesn't seem to work :(

[chrisstigson]

I have used bare metal Ubuntu 22.0.4 install. With a wifi-card to a router with192.168.1.1 using DHCP

My ubuntu install is on 192.168.1.42 (ssh works from windows/kali) I have another box that is physically connected to 192.168.1.67 through Virtualbox (bridged) on another physical PC (kali)

In the end I get: "Deployment succeeded, your lab is now up and running on the 192.168.56.0/24 network", and surely I can ping things inside from the SSH sessions or kali to 192.168.1.42

Now I've added the route

sudo ip route add 192.168.56.0/24 via 192.168.1.42 (in kali)

From kali I get ping response from 192.168.1.42(ubuntu), but not 192.168.56.10 for example,.

cme smb 192.168.56.0/24 doesn't get any responses. nmap 192.168.56.0/24 is dead, except 192.168.56.1

So I am thinking the problem is within the ubuntubox somehow. I've tried lots of manulas and routing, opening and disabling firewalls etc...

Do I need to attack my network from the ubuntubox?

It seems 192.168.56.1 is "router in NAT mode"

┌──(kali㉿kali)-[~] └─$ sudo ip route add 192.168.56.0/24 via 192.168.1.42

┌──(kali㉿kali)-[~] └─$ ping 192.168.56.10 PING 192.168.56.10 (192.168.56.10) 56(84) bytes of data. ^C --- 192.168.56.10 ping statistics --- 2 packets transmitted, 0 received, 100% packet loss, time 1006ms

┌──(kali㉿kali)-[~] └─$ ping 192.168.56.1 PING 192.168.56.1 (192.168.56.1) 56(84) bytes of data. 64 bytes from 192.168.56.1: icmp_seq=1 ttl=64 time=1.45 ms 64 bytes from 192.168.56.1: icmp_seq=2 ttl=64 time=1.54 ms ^C --- 192.168.56.1 ping statistics --- 2 packets transmitted, 2 received, 0% packet loss, time 1002ms rtt min/avg/max/mdev = 1.449/1.494/1.540/0.045 ms

┌──(kali㉿kali)-[~] └─$ sudo ip route add 192.168.56.0/24 dev eth0 via 192.168.1.42 RTNETLINK answers: File exists

┌──(kali㉿kali)-[~] └─$ sudo ip route add 192.168.56.0/24 dev eth0 via 192.168.51.1 Error: Nexthop has invalid gateway.

┌──(kali㉿kali)-[~] └─$