No Communication on Port 987

[chriswoodward80]

Hello Everyone,

I have a C881W and cannot communicate through port 987 from the public Internet. I have the following commands in my firewall and I can communicate on all other ports in this list.

permit tcp any any eq 987
permit tcp any any eq www
permit tcp any any eq 443
permit tcp any any eq 554
permit tcp any any eq 8000
permit tcp any any eq 85

ip nat inside source static tcp 192.168.1.10 987 interface FastEthernet4 987

The original problem is intermittent VPN connectivity to the Server 2012R2 box. The VPN was created in the server and my server guy says that it is not the server causing the issues. I found the problem with 987 while troubleshooting this issue.

I don't see anything else in the config about 987. Can someone please help me see what I am missing?

Thanks!

[balaji.bandi]

You need to post a full configuration to understand your setup.

other steps :

1. Can you confirm is the Server have that port service running?

2. The server has also had built-in FW, is that allowed or disable for testing.

3. have you tested from your router before you test outside network?

4. and enable debug logs and see you able to get ACK from Server?

5. on the server itself try netstat and see you request getting to the server or not, while you doing testing.?