Site to Site VPN from PA 200 to Juniper 5GT


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Site to Site VPN from PA 200 to Juniper 5GT

Hi all,

Anyone have a guide on how to set site to site vpn between PA200 and Juniper 5GT?. I tried a luck but now enable  to establish a connection. In Juniper the tunnel i created the status is ready.

A little help please.



L5 Sessionator

IPSEC on PAN-OS firewalls is Route Based .

For the ease of config and co-relation , configure Route-Based on the Juniper-5GT (Screen-OS ) firewall.

Proxy-IDs can be left blank (not-configured) at both ends as both Screen-OS  and PA firewall in route-based mode use defaults (local remote : , service any)

Use security level of standard for both  for the proposals on  5GT.

Config Guides :


Juniper 5GT- Juniper Networks - [ScreenOS] Juniper Firewall LAN-to-LAN Route Based VPN articles - Knowledge Base

Addtional Ref :

Re: Juniper ScreenOS VPN to PANOS

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Hi Nadir,

Thank you for help and i managed to up the link between the two sites half-way. Looking on my PA200 side the Ipesec Tunnel are up for both Phase 1 and Phase 2. But on my 5GT Juniper side the link status of the Tunnel is Down but its Active.

I can not ping any internal ip addresses  from each from Firewall. But for the public IP addresses  for each firewall  i am able to reach them thru ping.

I have few attachment and hope it can guide you to give some advices that i miss out. I am not so sure if this is something to do on the PA200 policy.

5GTJuniperVPNStatus.pngPA200 IPSec Tunnel Status.PNGpacket.PNGshow vpn flow.PNG



L5 Sessionator

On PA-200's end  Make sure

1>You have configured a static route with tunnel.2 as an Interface and next-hop = None

2>Security rules (bidirectional if needed) between tunnel-zone and Inside zone.

# decap bytes are incrementing while encap=0 which suggests that PA firewall is receiving traffic for tunnel from Juniper's End but not sending any traffic for the tunnel.

Juniper Link Down -Could be related to Tunnel Monitoring.

Try to allow  PING on the Tunnel Interface (PA-200) using Interface-Managment profile .

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