VPN cannot access internal resources

Hello everyone,

we got a TMG standalone, 2 nics, one with the internal network and the other to the ISP router, no firewalls between them, just this tmg.

Right now, we can connect the VPN, the server give us an internal IP with the dhcp but it got no access to any resource, not even ping.

we got rules created on the tmg that should give access, we tried ever with this access rule: allow all outbound traffic from localhost and vpnclients to external, internal and localhost condition all users.

thanks

March 4th, 2015 9:36am

Hi,

What do you see when a client connects in TMG logging?

What do you get when you do a tracert from an internal host to VPN client host?

You could also check the blog below.

Checking Out the TMG 2010 Virtual Private Network Server - Part 1: Overview of VPN Configuration

Note: Microsoft provides third-party contact information to help you find technical support. This contact information may change without notice. Microsoft does not guarantee the accuracy of this third-party contact information.

Best Regards,

Joyce

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March 5th, 2015 3:15am

Hello Joyce

We got this working before, it was after a restart on this TMG when the problem started.

in TMG logging i can see some connections to the DNS server which seems correct and over port 53 and a lot denied connections to destination ip 239.255.255.250 over port 1900 with

log type: firewall service

Status: An ingoing packet was dropped because its destination address does not exist on the system, and no appropriate forwarding interface exists

Rule: None - See result code

Souce: VPN Clients (172.16.0.207:59121)

Destination: External (239.255.255.250:1900)

Protocol: Unidentified IP Traffic (UDP:1900)

March 5th, 2015 6:50am

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