26 Apr
2017
26 Apr
'17
2:40 a.m.
How do you add a subnet to a gateway? I have a /24 assigned to me and
I want to use a /32 of it with an IPIP gateway. I added the gateway in
the portal. Then when I went to add the network, the /24 is listed in
the dropdown but I can't figure out how to add the network with a
larger prefix. I don't want the whole /24 to route through this one
gateway.
Tom KD7LXL
26 Apr
26 Apr
7:21 a.m.
Tom,
I tried adding a smaller subnet to your 44.24.131.0/24 in the portal,
and it is possible, but at the cost of changing the ownership of the
subnet to me and the type away from 'end user' - in effect, turning it
into a reallocable 'regional' subnet. This would probably be not such
a good idea.
Although you are authorized to advertise that subnet via BGP, it appears
from traceroute that you are not doing so. That means that, for the
purposes of an experiment, I could manually add a longer prefix subnet
of it to the amprgw local override files, in effect adding it to the
copy of the encap file that the RIP sender uses. It would *NOT* be in
the encap file that is distributed by the portal, so people using the
FTP'd copy of the encap file wouldn't learn that route. Thus it would
be only in the nature of a temporary experiment. Remember that to be
routed by amprgw, you would also have to have an entry in the AMPR.ORG
DNS for each host address you want active.
Let me know what you want me to do.
- Brian
On Tue, Apr 25, 2017 at 11:40:41PM -0700, Tom Hayward wrote:
How do you add a subnet to a gateway? I have a /24
assigned to me and
I want to use a /32 of it with an IPIP gateway. I added the gateway in
the portal. Then when I went to add the network, the /24 is listed in
the dropdown but I can't figure out how to add the network with a
larger prefix. I don't want the whole /24 to route through this one
gateway.
Tom KD7LXL
9:37 a.m.
I can add it manually if required.
Regards
Chris
Sent from my iPhone
On 26 Apr 2017, at 12:21, Brian Kantor
<Brian(a)UCSD.Edu> wrote:
(Please trim inclusions from previous messages)
_______________________________________________
Tom,
I tried adding a smaller subnet to your 44.24.131.0/24 in the portal,
and it is possible, but at the cost of changing the ownership of the
subnet to me and the type away from 'end user' - in effect, turning it
into a reallocable 'regional' subnet. This would probably be not such
a good idea.
Although you are authorized to advertise that subnet via BGP, it appears
from traceroute that you are not doing so. That means that, for the
purposes of an experiment, I could manually add a longer prefix subnet
of it to the amprgw local override files, in effect adding it to the
copy of the encap file that the RIP sender uses. It would *NOT* be in
the encap file that is distributed by the portal, so people using the
FTP'd copy of the encap file wouldn't learn that route. Thus it would
be only in the nature of a temporary experiment. Remember that to be
routed by amprgw, you would also have to have an entry in the AMPR.ORG
DNS for each host address you want active.
Let me know what you want me to do.
- Brian
On Tue, Apr 25, 2017 at 11:40:41PM -0700, Tom
Hayward wrote:
How do you add a subnet to a gateway? I have a /24 assigned to me and
I want to use a /32 of it with an IPIP gateway. I added the gateway in
the portal. Then when I went to add the network, the /24 is listed in
the dropdown but I can't figure out how to add the network with a
larger prefix. I don't want the whole /24 to route through this one
gateway.
Tom KD7LXL
_________________________________________
44Net mailing list
44Net(a)hamradio.ucsd.edu
http://hamradio.ucsd.edu/mailman/listinfo/44net
11:52 a.m.
On Wed, Apr 26, 2017 at 4:21 AM, Brian Kantor <Brian(a)ucsd.edu> wrote:
(Please trim inclusions from previous messages)
_______________________________________________
Tom,
I tried adding a smaller subnet to your 44.24.131.0/24 in the portal,
and it is possible, but at the cost of changing the ownership of the
subnet to me and the type away from 'end user' - in effect, turning it
into a reallocable 'regional' subnet. This would probably be not such
a good idea.
Hmm, so it's a coordinator only thing? It would be nice if users could
"coordinate" their own space and break it up as desired. I'll contact
John (my regional coordinator) if I need this done.
Although you are authorized to advertise that subnet
via BGP, it appears
from traceroute that you are not doing so. That means that, for the
purposes of an experiment, I could manually add a longer prefix subnet
of it to the amprgw local override files, in effect adding it to the
copy of the encap file that the RIP sender uses. It would *NOT* be in
the encap file that is distributed by the portal, so people using the
FTP'd copy of the encap file wouldn't learn that route. Thus it would
be only in the nature of a temporary experiment. Remember that to be
routed by amprgw, you would also have to have an entry in the AMPR.ORG
DNS for each host address you want active.
Yes, it is a network I announce by BGP a few times per year for a
special event. When the system is not in use, it is not announced.
In this case, I wanted to use the network purely out of convenience.
It's already assigned to me, and so I thought I would be able to
quickly put a gateway on it. My goal is not actually to gate packets
to this network. After all the talk about RIP, I just wanted a system
to receive the RIP broadcasts so I could see how that worked. I wanted
a gateway (RIP receiver) without a network.
I originally set up the gateway without any networks attached. I
monitored it for about an hour and didn't receive any RIP broadcasts,
so I figured maybe a network was required. It was then I started
looking for a way to only assign part of the network to the gateway (a
/32). I didn't find one, so I just assigned the whole /24 for now and
posted this question to the list.
This morning I see that RIP broadcasts have started coming in. Was it
me adding the network to the gateway that made it start working, or
does it just take a while? Ideally, I'd like to remove the network
from the gateway (so it's not really a gateway) and still receive the
RIP broadcasts.
How long should it take to start receiving RIP broadcasts? What is the
significance of the timing?
Let me know what you want me to do.
Please update the portal to allow users to assign arbitrary subnets of
their networks to gateways and send RIP broadcasts to gateways even if
they do not have a network assigned.
Tom
12:18 p.m.
It was you adding the network to the gateway, then up to an hour
delay for the updated encap file to be fetched by amprgw and used
to update the routing tables. The fetch is initiated at 20 minutes
past the hour, but with the current DoS attack on the portal, the
fetch can take a while as FTP connections are slow.
If you remove the network from the gateway, you will no longer be
in the encap file, and the RIP transmissions will stop being sent
to you.
- Brian
On Wed, Apr 26, 2017 at 08:52:27AM -0700, Tom Hayward wrote:
This morning I see that RIP broadcasts have started
coming in. Was it
me adding the network to the gateway that made it start working, or
does it just take a while? Ideally, I'd like to remove the network
from the gateway (so it's not really a gateway) and still receive the
RIP broadcasts.
How long should it take to start receiving RIP broadcasts? What is the
significance of the timing?
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days inactive
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4 comments
3 participants
participants (3)
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Brian Kantor -
Chris -
Tom Hayward