Unable to access some of the LAN IDRACs Via GP VPN

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Unable to access some of the LAN IDRACs Via GP VPN

L1 Bithead

Hello There,


I'm new to the field of firewalls, and I'm currently working with a PA 850 firewall, a Nexus switch, and four Dell PowerEdge R630 servers on my site. I've configured a GlobalProtect (GP) VPN on the firewall and set up subinterfaces for different types of traffic. However, I'm encountering an issue where I can't access the IDRAC (Integrated Dell Remote Access Controller) of two out of the four servers via the VPN. The IDRACs are in the 10.100.24.0/24 network, and interestingly, I can access the problematic server IDRAC IPs directly from the firewall. The issue only occurs when trying to access the IDRACs via the VPN.

Here are the details of the servers:

  • Server 1 IDRAC IP: 10.100.24.21 (working)
  • Server 2 IDRAC IP: 10.100.24.22 (not working)
  • Server 3 IDRAC IP: 10.100.24.23 (working)
  • Server 4 IDRAC IP: 10.100.24.24 (not working)

To summarize:

  • Via VPN: Able to access IDRACs of Servers 1 and 3, but not Servers 2 and 4
  • Firewall to Servers IDRACs: Able to access IDRACs of all servers

The firewall policies are configured to allow access via VPN to the corresponding subnet, but I'm unsure what is causing me to be unable to access the IDRACs of Servers 2 and 4. I've attached a sample network diagram of the LAN for reference. Any assistance would be greatly appreciated.

Thanks,

Punkn

1 accepted solution

Accepted Solutions

L7 Applicator

I see no diagram….  Is the 10.100.24.0/24 directly attached to the firewall… if so.. may be worth checking the gateway and subnet mask of the troubled servers,,,  

 

I would use monitor/packet capture on the firewall and add the servers to the filter to see if packets are being allowed… it may help…

 

last resort.. add a last place policy to deny all traffic from VPN to 10.100.24.0/24 to see if not allowed by your current policies and monitor session start

View solution in original post

2 REPLIES 2

L7 Applicator

I see no diagram….  Is the 10.100.24.0/24 directly attached to the firewall… if so.. may be worth checking the gateway and subnet mask of the troubled servers,,,  

 

I would use monitor/packet capture on the firewall and add the servers to the filter to see if packets are being allowed… it may help…

 

last resort.. add a last place policy to deny all traffic from VPN to 10.100.24.0/24 to see if not allowed by your current policies and monitor session start

Hello MB2222,

 

The problem was actually on the server itself. Someone had configured the wrong IDRAC gateway on the server. Thanks for the suggestions; I appreciate it.

 

Thanks,

Punkn

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