pop3 and vpn

Grant Taylor gtaylor at riverviewtech.net
Fri Aug 12 07:34:24 CEST 2005


Vinod H wrote:
> Hi, 
> 
> 
> I am Vinod, I have Redhat Linux 9 as my firewall and mailserver and I 
> want to open pop3(110) port and We have Cisco VPN installed on our UK 
> office and from here we are trying to connect to the VPN server through 
> 
> 
> Cisco VPN Client installed on one of the windows 2000 pro client 
> machine, if I connect through some internet dialup I am able to connect 
> 
> 
> but if I go through our internet gateway that is our firewall I am not 
> able to connect. 
> 
> 
> I don't know if I want to open some port in the firewall so that my vpn 
> 
> 
> works fine, following is my iptables 

<snip>

> I want to know how to open pop3 port for outside access and for the 
> perticular ip and which port should be open for my vpn to work and how 
> to 
> 
> 
> Some one please help me on this issue it is very urgent 
> 
> 
> Thanks in advance 
> 
> 
> Regards 
> 
> 
> Vinod

I would be willing to bet that you need to allow your firewall to pass ESP and possibly GRE traffic through your FORWARD chain.



Grant. . . .



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