1 Sep
2015
1 Sep
'15
12:39 p.m.
Hi,
Is anyone else running a HECnet connection using Johnny's bridge and a
BT Infinity line? I don't seem to be able to get any traffic to flow to
Johnny.
Anyone else hosting a bridge that would be willing to add me and see if
we can figure out what's what?
--
Mark @ DECtec.info
twitter.com/DECtecInfo
1 Sep
1 Sep
12:40 p.m.
Hi Mark,
Sorry no, have GRE tunnelling working over BT Infinity though.
If I can help let me know.
Mark
On 1 Sep 2015, at 11:39, Mark Benson <md.benson at
gmail.com> wrote:
Hi,
Is anyone else running a HECnet connection using Johnny's bridge and a BT Infinity
line? I don't seem to be able to get any traffic to flow to Johnny.
Anyone else hosting a bridge that would be willing to add me and see if we can figure out
what's what?
--
Mark @ DECtec.info
twitter.com/DECtecInfo
12:46 p.m.
On 01/09/2015 11:40, Mark Darvill wrote:
Hi Mark,
Sorry no, have GRE tunnelling working over BT Infinity though.
If I can help let me know.
Do you still use the Hub 5 or did you ditch it for a better router?
Is there any way to set GRE tunneling up using Linux, or is it something
that needs Cisco hardware?
--
Mark @ DECtec.info
twitter.com/DECtecInfo
12:56 p.m.
No I replaced the Hub 5 with a Cisco 1941 with an 1841 and Decbrouter90 behind it due to
the relatively complex setup I have here. The Decbrouter90 handles the GRE tunnels as
there is a bug with having GRE on a Cisco router that also has NAT enabled.
You could setup a Decbrouter90 behind the Hub 5 i guess. You can get a DECbrouter for not
a lot on Ebay but remember you will also need a PSU for it as well.
You could also use a Cisco emulator under linux.
If you go that route then I can certainly help with configs etc.
Mark
On 1 Sep 2015, at 11:46, Mark Benson <md.benson at
gmail.com> wrote:
On 01/09/2015 11:40, Mark Darvill wrote:
Hi Mark,
Sorry no, have GRE tunnelling working over BT Infinity though.
If I can help let me know.
Do you still use the Hub 5 or did you ditch it for a better router?
Is there any way to set GRE tunneling up using Linux, or is it something that needs Cisco
hardware?
--
Mark @ DECtec.info
twitter.com/DECtecInfo
1:09 p.m.
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
1:26 p.m.
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
2:41 p.m.
Good news!
Johnny and I had overlooked an incorrect setting so I was trying to send
the packets to the wrong computer at update. DOH!!
It's working okay now :)
--
Mark @ DECtec.info
twitter.com/DECtecInfo
6:23 p.m.
On 1/09/2015 6:56 PM, Mark Darvill wrote:
No I replaced the Hub 5 with a Cisco 1941 with an 1841
and
Decbrouter90 behind it due to the relatively complex setup I have
here. The Decbrouter90 handles the GRE tunnels as there is a bug with
having GRE on a Cisco router that also has NAT enabled.
What bug are you experiencing? I have a Cisco 1841 that has NAT
enabled, hooks into the HECnet as well as connecting a number of
GRE/IPsec tunnels an IPv6 tunnel and more. I've not had any
trouble...that I've noticed.
Regards, Tim.
6:40 p.m.
Hi Tim,
The bug occurs with complex NAT and NAT Pools coupled with a Zone Based Firewall.
The GRE tunnels work fine, Decnet comes up on the internet connected router you can decnet
ping either way on the router, which has adjacencies both ways (i.e. to the area routers
and my end nodes) but it will not route from my end nodes to nodes elsewhere on Hecnet. My
end nodes did see an adjacency with my router as would be expected.
If you kill the complex NAT (NAT pools) then it will work but that mucks up the config of
my network which has to support my real business services on it via a DMZ with one set of
fixed IP addresses and another set of fixed via the NAT pools.
Took me a couple of months to figure out and it was the same on V12.x and V15 of IOS on a
1941 and 1841. I can fix it with either a Cisco or Decbrouter with a simpler config behind
my main router which works every time or simplifying massively my internet connected
router.
Mark
On 1 Sep 2015, at 17:23, Tim Sneddon <tim at
sneddon.id.au> wrote:
On 1/09/2015 6:56 PM, Mark Darvill wrote:
No I replaced the Hub 5 with a Cisco 1941 with an
1841 and
Decbrouter90 behind it due to the relatively complex setup I have
here. The Decbrouter90 handles the GRE tunnels as there is a bug with
having GRE on a Cisco router that also has NAT enabled.
What bug are you experiencing? I have a Cisco 1841 that has NAT enabled, hooks into the
HECnet as well as connecting a number of GRE/IPsec tunnels an IPv6 tunnel and more.
I've not had any trouble...that I've noticed.
Regards, Tim.
12:56 p.m.
On 01/09/2015 11:40, Mark Darvill wrote:
Hi Mark,
Sorry no, have GRE tunnelling working over BT Infinity though.
If I can help let me know.
It looks like GRE tunneling for IP-to-IP is pretty easy. Nothing showing
for DECnet over GRE that isn't on Cisco gear :\
Given it can do IP-over-IP I wonder if it's possible to tunnel the
bridge traffic over something like that...
Hmmm...
--
Mark @ DECtec.info
twitter.com/DECtecInfo
1:12 p.m.
Incidentally, for those interested, this is what my bridge diagnostic
looks like:
Host table:
0: local 0.0.0.0:0 (Rx: 726 Tx: 0 (Drop rx: 0)) Active: 1 Throttle: 0(000)
1: update 130.238.19.17:4711 (Rx: 0 Tx: 707 (Drop rx: 0)) Active: 1
Throttle: 0(333)
Hash of known destinations:
aa0004000118 -> 0 (6.1)
aa0004000418 -> 0 (6.4)
--
Mark @ DECtec.info
twitter.com/DECtecInfo
3181
days inactive
3181
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10 comments
3 participants
participants (3)
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mark.darvill＠mac.com -
md.benson＠gmail.com -
tim＠sneddon.id.au