[HECnet] Connectivity via BT Infinity

[Mark Darvill]

You would need to do a full NAT to the DECbrouter90 as GRE although IP does not have a normal IP port in the IP packet so PAT doesn’t really understand GRE.

My Decbrouter90 is attached to a Cisco 1841 which performs NAT to the outside world. So I map a single IP to the Decbrouter90. There may be a better way to do this but I gave up trying as due to it not having a TCP port the firewall also doesn’t understand so I just found it easier to pass everything to the decbrouter.

T1 or T2 doesn’t matter as they just dictate how many WAN ports and what interface types are supported, there is a matrix in the manual.

The PSU I have on the Decbrouter is a H7827. The Hub 5 in my opinion is not good for anything other than very basic connectivity.

As I said if you need help just let me know.

Mark

 
> On 1 Sep 2015, at 12:09, Mark Benson <md.benson at gmail.com> wrote:
> 
> On 01/09/2015 11:56, Mark Darvill wrote:
> 
>> You could setup a Decbrouter90 behind the Hub 5 i guess.
> 
> If I can use a DECbrouter90 on my existing LAN/Net connection to handle the GRE tunnelling that'd be pretty neat. What does it require in the way of port forwarding or is that unnecessary?
> 
> Also, looking briefly, is a T1 or a T2 better or is it not important? The only difference seems to be 1 rather than 2 big multiplugs on the front?
> 
> I have a Draytek router here that only does ADSL but it has a an Ethernet WAN port wth PPPoE so I can easily lash it to an OpenReach modem, I think. I think that might be one strategy as it's a lot more network admin friendly than a Hub 5.
> 
>> You can get a DECbrouter for not a lot on Ebay but remember you will also need a PSU for it as well.
> 
> Looks like the same setup as the DECserver 90 series? If so have a 90M I can borrow a PSU from and I know how to wire the plugs for them :)
> 
>> You could also use a Cisco emulator under linux.
>> 
>> If you go that route then I can certainly help with configs etc.
> 
> I may have looked at this before but I got very confused D: I've no experience on Cisco equipment, so it might make an interesting learning exercise but I'd be starting at basic idiot level :\
> 
> -- 
> 
> Mark @ DECtec.info
> twitter.com/DECtecInfo