We need to connect to a CISCO 3015 from our CISCO 1605. We are running MS Proxy 2.0 on NT4 Server on our side of the router with RRAS and PPTP services running. We have configured the RRAS portion as directed my the Microsoft KB and are still NOT able to connect to the distant router. Our Proxy is running wide open with all ports free and both routers have a presence on the internet. According to MS the WinProxy client will NOT address and deliver the PPTP packets which is the cause for the RRAS to be installed. However, this doesn't appear to be the case. Anyone out there have any experience or worked on this in the past?
Just to add a little to what Mike is saying, we were given the following ports to open on our firewall:
1. UDP PORT 50
2. IPSEC/NAT PORT 10,000
3. ESP PROTOCOL 50
We are thinking that the solution would be to add RRAS to the PROXY 2.0 server and then configure the filters in RRAS, however the ports listed in KB article q169890 do not match the ports the admin gave to us.
Any suggestions are welcomed and greatly appreciated.
The first port should be UDP port 500 not 50. UDP 500 is the port for ISAKMP which creates the first tunnel between the peers (your Cisco devices) and then the IPSEC tunnels are created within ISAKMP which is ESP traffic.
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We have configured the outside and inside Interface with official ipv6 adresses, set a default route on outside Interface to our router, we also have definied a rule , which also gets hits, to permit tcp from inside Interface to any6.
In Syslog I also se...