IPSEC VPN

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IPSEC VPN

L0 Member

I am working in a lab with VMware virtual machine and when I do VPN it throws the following error: ike phase 1 negotiation fails as initiator, main mode failed SA: 192.168.1.1[500]-203.0.113.40[500]Due to time. 

 

My firewall B is on another machine with another VM. Can you help me please? 

3 REPLIES 3

Cyber Elite
Cyber Elite

You need to start troubleshooting from firewall B.

If there is any mismatch then B will sit silent and will not tell "attacker" what config it should change to get successful VPN connection.

As you see initiator only sees "timeout".

Firewall B logs on the other hand will tell you why VPN failed.

Enterprise Architect, Security @ Cloud Carib Ltd
Palo Alto Networks certified from 2011

Cyber Elite
Cyber Elite

Hello,

To add to this, I would check the ikev1 configuration on both sides to verify they are identical.

Regards,

L4 Transporter

Make sure the reachability is good between both nodes.

If there is NAT involved then enable NAT-T.

 

Anoopkumar
Network Security Engineer
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