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| ahpama 2001-11-12, 3:25 am |
| Hi,
We just acquired IP block 168.187.4.0/22 and this is already broadcasted by our ISP. In order for those IP to be known to the net we have to also broadcast it by creating a static routes on our router. My question is that what would be the consequence if I create a static route in this way:
ip route 168.187.4.0/24 next hop
ip route 168.187.5.0/24 next hop
ip route 168.187.6.0/24 next hop
ip route 168.187.7.0/24 next hop
instead of this
ip route 168.187.4.0/22 next hop
thanks a lot.
ahpama
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| darthfeces 2001-11-12, 5:30 am |
| why would you want to do that ?
the purpose of supernetting is to advertise
a shorter match (and therby taking advantage of longest match principle)
and helping to have a smaller internet routing table by having smaller matches reach larger
blocks of desinations.
contact your isp. i'm sure they'd like to minnimize your entry by supernetting instead of
adverting individual routes. | |
| dmaftei 2001-11-12, 7:05 am |
| quote:
Originally posted by ahpama
My question is that what would be the consequence if I create a static route in this way:
A few routing tables that are three routes larger then they should be. | |
| ahpama 2001-11-12, 10:33 am |
| quote:
Originally posted by darthfeces
why would you want to do that ?
the purpose of supernetting is to advertise
a shorter match (and therby taking advantage of longest match principle)
and helping to have a smaller internet routing table by having smaller matches reach larger
blocks of desinations.
contact your isp. i'm sure they'd like to minnimize your entry by supernetting instead of
adverting individual routes.
Hi, Im sorry I didn't get that. Do you mean advertising it on a single route like ip route 168.187.4.0/22 is better than and much less latency than breaking down its subnet?. SInce our network setup is only forwarding, I mean our client will dial into their local ISP then each client are given a corresponding IP(which is inside the IP block above). When a client requests data that requested data will be forwarded by their ISP to the internet and from the internet the requested data(content already)will be forwared to us and we will be the one to broadcast/uplink the data for satellite transmission then the client whose IP is within our advertised route will receive it through their satellite dish.
thanks.
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| whytokayok 2001-11-13, 7:51 pm |
| How are you dealing with the Latency problem with the Satellite uplink? You are looking at a 125 to 250msec delay. This will affect you TCP/IP acks... | |
| ahpama 2001-11-14, 1:23 am |
| quote:
Originally posted by whytokayok
How are you dealing with the Latency problem with the Satellite uplink? You are looking at a 125 to 250msec delay. This will affect you TCP/IP acks...
Hi,
We only have a latency of 20- 100 ms. It doesn't affects the acknowledgement coz we are just few hops away from our ISP and same as with our ISP.
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