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sankarklm
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VPN Passthrough Issue

Thu Nov 10, 2011 7:05 pm

Hi,

I am using mikrotik as an hotspot/pppoe server, the problem i am facing currently is users are not able to connect to there office VPN. VPN gets stuck during authentication process of it. I have tried allowing 47/50/51/500/4500/1780/1723/49000 ports but no use still the issue persist.


Please help me out.
 
fewi
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Re: VPN Passthrough Issue

Thu Nov 10, 2011 7:58 pm

I have tried allowing 47/50/51/500/4500/1780/1723/49000 ports
How have you done that? 47, 50, and 51 are IP protocols, not ports.
Specific answers require specific questions. When in doubt, post the output of "/ip address print detail", "/ip route print detail", "/interface print detail", "/ip firewall export", and an accurate network diagram.
 
CCDKP
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Re: VPN Passthrough Issue

Thu Nov 10, 2011 8:33 pm

What kind of VPN are they using? IPSec? PPTP?
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sankarklm
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Re: VPN Passthrough Issue

Fri Nov 11, 2011 4:13 am

I have tried allowing 47/50/51/500/4500/1780/1723/49000 ports
How have you done that? 47, 50, and 51 are IP protocols, not ports.


47 is gre /50-ipsec-esp/51-ipsec-ah
 
sankarklm
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Re: VPN Passthrough Issue

Fri Nov 11, 2011 4:15 am

What kind of VPN are they using? IPSec? PPTP?

both are there
 
CCDKP
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Re: VPN Passthrough Issue

Fri Nov 11, 2011 10:14 pm

Double check in your filter rules that you have an allow entry for Related as we as Established connections.
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sankarklm
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Re: VPN Passthrough Issue

Sat Nov 12, 2011 5:01 am

Double check in your filter rules that you have an allow entry for Related as we as Established connections.

I am using the following firewall rules http://wiki.mikrotik.com/wiki/Protecting_your_customers but with limited ports on block [25/135-139/445] . Yes i has a rule to to allow related and established connections.
 
CCDKP
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Re: VPN Passthrough Issue

Sun Nov 13, 2011 12:16 am

Do you have pptp or ipsec enabled on the router itself? Perhaps data is getting caught by that instead of forwarded away properly.
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sankarklm
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Re: VPN Passthrough Issue

Mon Nov 14, 2011 8:38 am

Do you have pptp or ipsec enabled on the router itself? Perhaps data is getting caught by that instead of forwarded away properly.

Nope nothing...been enabled

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