ICMP echo reply blocked for PPTP Vpn connection

[Roshan2003]

Folks,

I need some help on this issue, If anyone can help me out highly appreciated.

I have a remote site using private ip of 10.1.2.0 with 3com office connect router. and my office private ip is 192.168.5.0 network. I am establishing a demand dial connection (persistent connection) from win 2003 Routing and Remote Access. It connects fine and I am able to talk to 10.1.2.0 network from 192.168.5.0 network without any issue.

But When I try to talk from my remote site 10.1.2.0 network to 192.168.5.0 network, I am not able to talk to my 192.x.x.x internal network. except the Routing RAS server and Gateway.

Here is the complete scenario;

a. win2003 RRAS => 192.168.5.4
b. Gateway / Firewall => 192.168.5.6 (iptable on Fedora-Linux)
Static route for 10.1.2.0/255.255.255.0 =>192.168.5.4
c. 3Com Router as PPTP Server => 10.1.2.1
d. PCRemote-1 => 10.1.2.2
e. PCLocal-1 = > 192.168.5.54/255.255.255.0, GW=192.168.5.6
f. PCLocal-2 => 192.168.5.15/255.255.255.0, GW = 192.168.5.4


Pinging results scenario;
1. From e) PCLocal-1 to any remote host OK
2. From d) PCRemote-1 to a) win2003 RRAS is ok
3. From d) PCRemote-1 to b) Gateway is ok
4. From d) PCRemote-1 to f) PCLocal-2 is ok
5. From d) PCRemote-1 to e) PCLocal-1 ======== PROBLEM request timeout

When monitor the schenario 5, I can see the PCLocal-1 is replying the icmp request, but its beign blocked by the firewall, though explicitly opened the bothway communication for the 10.1.2.0 network any one has a clue why its behaving like this ?

Thanks
Roshan

 

[TidyTrax]

Can you show tracert from PCLocal-1 & 2 to PCRemote1