Cisco online Route summarization tool not working

[suhas bhoir]

Hi,

I want to summarize more than 6000 routes, and I surprised the online Cisco route summarization tool is not working,

manual summarization is very time-consuming. why this online tool is down?

SUHAS B,

[omz · Accepted solution]

Hi

Route summarization tool retired on Sep 16, 2019.

you can use netaddr library .. that may help

https://netaddr.readthedocs.io/en/latest/tutorial_01.html#summarizing-list-of-addresses-and-subnets

[suhas bhoir]

Hi OMZ,

i appreciate for you prompt response, but here i have  more than 6000+ EIGRP and OSPF dynamic routes data and i want to convert it into static,

can we import route text file in this tool?

Re

Suhas B.

[Vishnu Vardhan S]

They have withdrawn it. 

Better to use netaddr

You do this in netaddr using the cidr_merge() function.

First we create a list of IP objects that contains a good mix of individual addresses and subnets, along with some string based IP address values for good measure. To make things more interesting some IPv6 addresses are thrown in as well.

> ip_list = [ip for ip in IPNetwork('fe80::/120')]
>>> ip_list.append(IPNetwork('192.0.2.0/24'))
>>> ip_list.extend([str(ip) for ip in IPNetwork('192.0.3.0/24')])
>>> ip_list.append(IPNetwork('192.0.4.0/25'))
>>> ip_list.append(IPNetwork('192.0.4.128/25'))
> len(ip_list)
515 cidr_merge(ip_list)
[IPNetwork('192.0.2.0/23'), IPNetwork('192.0.4.0/24'), IPNetwork('fe80::/120')]

[Jamie_Hessels]

this online one works well... https://tehnoblog.org/ip-tools/ip-address-aggregator/