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RIP route summarization
spartangtr
Member Posts: 111
in CCNA & CCENT
OK, I can't seem to figure out why i'm having trouble doing manual route summarization.
R1----ISP---R2
The serial links are 10.1.1.0 /30 and 10.1.1.4 /30. On 3 ethernet ports on R1 I have 192.168.1.1 - 192.168.3.1 all with a /24 subnet mask. I'm trying to summarize route out of s0/0 over to R2 as 192.168.0.0 /22. Here's what i'm getting...
R1(config-if)#ip sum
R1(config-if)#ip summary-address rip 192.168.0.0 255.255.252.0
Summary mask must be greater or equal to major net
When I disable RIP and enable EIGRP this works with no issues. It's just not working with RIP. I think I remember reading somewhere that RIP will only summarize up to it's classful boundaries so trying to summarize a class A as /6 wouldn't work. But the Class C private address 192.168.0.0 technically has a /16 mask so this should work shouldn't it?
R1----ISP---R2
The serial links are 10.1.1.0 /30 and 10.1.1.4 /30. On 3 ethernet ports on R1 I have 192.168.1.1 - 192.168.3.1 all with a /24 subnet mask. I'm trying to summarize route out of s0/0 over to R2 as 192.168.0.0 /22. Here's what i'm getting...
R1(config-if)#ip sum
R1(config-if)#ip summary-address rip 192.168.0.0 255.255.252.0
Summary mask must be greater or equal to major net
When I disable RIP and enable EIGRP this works with no issues. It's just not working with RIP. I think I remember reading somewhere that RIP will only summarize up to it's classful boundaries so trying to summarize a class A as /6 wouldn't work. But the Class C private address 192.168.0.0 technically has a /16 mask so this should work shouldn't it?
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abefroman
Banned Posts: 278
spartangtr wrote: »OK, I can't seem to figure out why i'm having trouble doing manual route summarization.
R1----ISP---R2
The serial links are 10.1.1.0 /30 and 10.1.1.4 /30. On 3 ethernet ports on R1 I have 192.168.1.1 - 192.168.3.1 all with a /24 subnet mask. I'm trying to summarize route out of s0/0 over to R2 as 192.168.0.0 /22. Here's what i'm getting...
R1(config-if)#ip sum
R1(config-if)#ip summary-address rip 192.168.0.0 255.255.252.0
Summary mask must be greater or equal to major net
When I disable RIP and enable EIGRP this works with no issues. It's just not working with RIP. I think I remember reading somewhere that RIP will only summarize up to it's classful boundaries so trying to summarize a class A as /6 wouldn't work. But the Class C private address 192.168.0.0 technically has a /16 mask so this should work shouldn't it?
That's odd, you are using version 2 right?