using local bridge on AWS

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deliah
Posts: 3
Joined: Sat Apr 25, 2015 7:21 am

using local bridge on AWS

Post by deliah » Sat Apr 25, 2015 7:41 am

Hello,

I am tring to use Local Bridge on AWS. And I follow the document create two Network Interface on my EC2 instance, and config the VPN Server use it.
But when I connect to the AWS virtual hub from my client, the client can't ping any server on the same EC2 subnet, even the IP that VPN Server used. Should I enable SecureNAT/DHCP on VPN virtual Hub? Please advise, thanks.

EC2 region:
VPNServer 10.0.0.7
Server1~100 10.0.0.100~200 (I don't have install VPN client on it)

The client want to talk to the servers by VPN, thanks.

kh_tsang
Posts: 551
Joined: Wed Jul 24, 2013 12:09 pm

Re: using local bridge on AWS

Post by kh_tsang » Sun Apr 26, 2015 12:29 pm

Are you using VPC or something else?

deliah
Posts: 3
Joined: Sat Apr 25, 2015 7:21 am

Re: using local bridge on AWS

Post by deliah » Sun Apr 26, 2015 5:05 pm

kh_tsang wrote:
> Are you using VPC or something else?

Yes, I using VPC.

kh_tsang
Posts: 551
Joined: Wed Jul 24, 2013 12:09 pm

Re: using local bridge on AWS

Post by kh_tsang » Mon Apr 27, 2015 5:32 am

I think you should check the configurations or ask AWS support first about their configurations.

Some switches prevents MAC/IP spoofing but I have no idea about VPC.

deliah
Posts: 3
Joined: Sat Apr 25, 2015 7:21 am

Re: using local bridge on AWS

Post by deliah » Mon Apr 27, 2015 11:37 am

kh_tsang wrote:
> I think you should check the configurations or ask AWS support first about
> their configurations.
>
> Some switches prevents MAC/IP spoofing but I have no idea about VPC.

Just confirmed that AWS IP spoofing outbound from EC2 instances is blocked.
ARP and DNS spoofing inbound is blocked.

What is the Softether Local Bridge really need? Outbound ?
Do we have alternative way for this case if the EC2 Instances don't have SoftetherVPN client on it? Thanks.

kh_tsang
Posts: 551
Joined: Wed Jul 24, 2013 12:09 pm

Re: using local bridge on AWS

Post by kh_tsang » Tue Apr 28, 2015 10:48 am

Use tap device and do NAT with your OS.

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