Can't get to internet in VM through another VM (vmware)


Veerendra Kakumanu

VM-1(CentOS7)

eht0-10.10.10.10/24           Gateway:0.0.0.0
eth1-Bridged Network to wlan0
eth2-192.168.3.10/24          Gateway:0.0.0.0

VM-2(Ubuntu14)

eth0-10.10.10.11/24               Gateway:0.0.0.0
eth1-192.168.2.11/24              Gateway:0.0.0.0
eth2-192.168.3.11/24              Gateway:192.168.3.10

VM-3(Ubuntu14)

eth0-10.10.10.12/24                   Gateway:0.0.0.0
eth1-192.168.2.12/24                  Gateway:0.0.0.0
eth2-192.168.3.12/24                  Gateway:192.168.3.10

So, VM2and VM-3have a default gateway VM-1. I can ping 8.8.8.8from VM-1. able to ping 192.168.3.10follow .VM-2VM-3

However, I cannot start ping 8.8.8.8from VM-3and VM-2.

I did the NATcommand aboveVM-1

sudo iptables -t nat -A POSTROUTING -o eth1 -j MASQUERADE

sudo iptables -t filter -D INPUT -j REJECT --reject-with icmp-host-prohibited

sudo iptables -t filter -D FORWARD -j REJECT --reject-with icmp-host-prohibited

I checked tcpdumps -n -i eth2while pinging VM-1to 8.8.8.8 VM-2. packets fromVM-1

So, is there anything I'm missing?

One more thing is that I made a static ip /etc/network/interfaces(same as CentOS!), but sometimes I don't get the IP of the interface (in Ubuntu)

Ratings

maybe:

sudo iptables -t nat -A POSTROUTING -s 10.10.10.0/24 -o eth1 -j MASQUERADE
sudo iptables -t nat -A POSTROUTING -s 192.168.3.0/24 -o eth1 -j MASQUERADE

or even this:

echo 1 > /proc/sys/net/ipv4/ip_forward

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