Hi Kaspars,
You could supernet if your subnets are contiguous. For example, if your
data subnets are 192.168.8.0-192.168.11.0 you could supernet them to
255.255.252.0 on the router. You would have to re-mask your hosts to
this as well. On the other hand, you might want to consider changing
your IP scheme to 172.25.x.x for this group. It would then allow you to
subnet "down" instead of supernetting "up".
Why so many subs on the same LAN segment anyway? Even if you could
define all eight subs on the interface they would still be able to "see"
each other so you wouldn't be restricting traffic between them without
some ugly ACLs.
If you really need these different subs is there a possibility of
bringing them to the G on separate ports with each subnet on different
switches or VLANed up to the G on the single port? You could then define
those VLANs on the G and provide routing instances for each VLAN on the
G. Either way, you seem to have quite a bit of complication going on. If
possible it may be worth a re-think of how you are bringing these hosts
to the G.
Can you provide more details on your requirements for so many subs and
what switching you have available at the access layer? It might be
easier to give you some ideas to consider.
Just two cents on my part.
Jim
Kaspars Bergs wrote:
Hi,
Thanks.
I already did this and it looks like working, but what if I need to
define one new subnet in LAN, for ex. 192.168.12.0/24? I should put it
in VLAN 1, because it’s the same traffic as both others, but I can
define there only two IP interfaces?
In my situation I have eight subnets in LAN which traffic is not
tagged (VLAN 1), does that means that I can route not tagged only two
subnets?
Kaspars
*From:* Sylvain Conti [mailto:[email protected]]
*Sent:* Thursday, April 09, 2009 9:05 PM
*To:* Enterasys Customer Mailing List
*Subject:* [enterasys] RE : [enterasys] routing on G3
Hi,
As Jim said :
router
enable
config
interface vlan 1
ip address 192.168.11.0 255.255.255.0
ip address 192.168.240.0 255.255.252.0 secondary
exit
Interface vlan 10
ip address 192.168.15.0 255.255.255.0
exit
exit
Remark :
Don't forbade to define the ip route default and any other needed for
your network
Cordialement,
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*De:* Jim Huddle
*Date:* jeu. 09/04/2009 13:14
*À:* Enterasys Customer Mailing List
*Objet :* RE:[enterasys] routing on G3
If I correctly understand what you’ve said, can’t you 1.) Make 168.11
a primary and 168.240 a secondary on int vlan 1. Then just define
168.15 on int vlan 10. Since all three subnets will be on locally
defined interfaces the G will know how to route between them.
Jim
*From:* Kaspars Bergs [mailto:[email protected]]
*Sent:* Thursday, April 09, 2009 5:05 AM
*To:* Enterasys Customer Mailing List
*Subject:* [enterasys] routing on G3
Hello,
Can anyone help with the routing on G3? Here is my situation:
I have three subnets in LAN:
1) for data 192.168.11.0/24 and 192.168.240.0/22 with no tagged
default vlan 1;
2) voice 192.168.15.0/24 tagged with vlan 10.
I need to route them through G3. All of those subnets are coming in to
G3 through uplinks or are directly connected to G3. I can't specify
exact ports through which each subnet will reach G3, on uplink ports
there are all subnets, on directly connected ports (ge) there can be
voice or data.
How to make routing between these subnets?
The main problem is that I need “one armed” routing (routing between
two subnets that reside on the same VLAN interface or physical port))
and there isn’t much in manuals about it. In my situation I need
routing between three subnets (two not tagged VLAN 1 and one tagged
VLAN 10) that resides on same physical port.
Thanks in advance,
Kaspars Bergs
Riga, Latvia
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