I'm unable to use Remote desktop from internet to PC in Trust zone

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I'm unable to use Remote desktop from internet to PC in Trust zone

L2 Linker

Hello all,

I wanna Remote desktop from my PC in home to PC in my company but not success

This is my connection diagram

Untitled Diagram (1).jpg

 

I wanna remote to PC 10.126.123.132 (belong to VLAN 123, I use several VLANs in Core switch) but not success, NAT seems not to work, there's no traffic logs

This is my config..

Virtual router config.Virtual router config.

 

Security rulesSecurity rules

 

NAT ruleNAT rule

 

I can remote from internet to a server in DMZ zone successfully but L3_Trust zone, so I think because of using VLAN in core switch, it requires some other config.. Please help me 🙂

P/S: The public IP in the pictures is just an example IP 

32 REPLIES 32

change your security policy/action/log settings to session start.

 

attempt a connection and find connection attempt in monitor/traffic.

 

if you can see the session start then select magnifying glass on left column and post 

I've already choosen both Log at session start and end before 😞

L7 Applicator

in your security policy, should the destination address be 10.126.123.132 and not 113.160.131.230

I think it must be 113.160.131.230 but anyway, I tried changing it to 10.126.123.132 or any, it's not working 😞

Of cource it wouldn't work...When using destination NAT, Security policy must contain PRE-NAT addresses and POST-NAT zones. Which means that your original configuration configuration is actually correct.

 

In my humble opinion your original configuration was correct (correct NAT and correct security policy). There was suggestion to set source NAT and I saw you have enabled source and destination - I would say this is wrong... I believe the suggestion was to configure source static nat and enable bidirectional. That way you should accomplish the same think create static NAT. But you shouldn't enable both source and destination in the same rule.

 

In the capture you can see that drop capture is filling with with the SYN, so

 

So my suggestion:

1. Put everything back as you configure it originally.

2. I saw that you are using service group RDP, can you confirm that this service group contain TCP port 3389?

3. Enable log on start for the security rule
4. Check traffic log for log matching your source address. send screenshot for this entry (you can hide the real addresses if you like)

 

 

One more think - If you don't see logs for your attempts, please check if you have enabled log for default Intra and Inter zone security policy? If traffic doesn't match any explicit rule is probably being dropped by the default zone rules, and by default they are not logging.

another you can check is  run test security-policy-match <fill in the rest> under the CLI

L3 Networker

the reason there is no session on the firewall because i think it dropping the packet due to security rule . You can confirm this by creating a deny alll rule at the bottom and see if your traffic hits this rule.

 

The service object rdp that you have created, make sure you just put 3389 in destination port and leave the source port as blank and the protocol is tcp.

If this still does not work, open the rule to allow any service. For security just mention your public ip as source.

Check if you are still hitting the same rule or the default deny.

 

Yes, I use a "Deny all" rule, I'm sure RDP service is correct with 3389 port 'cause I'm using it to remote to a server in DMZ zone. I create rule with permit access from my PC in internet to any zone and any address in internal network. But it's still not working and there's no any log except ping or telnet (but ping and telnet is not success and destination address is not NATed)

It seems hard to connect directly from internet to L3_trurst zone, so I'll use Globalprotect to setup VPN client to site.

Hi,

I am having the same issue exaclty you facing now, All the while is working fine, The issue is onli happen i update the PA to 8.0.5, Are you using the same OS version.

Thanks

I'm using 6.1.16, I think it's not relate to PAN-OS version

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