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Re: [Security-WG] Junos min-ttl and as regex backref feature


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  • From: John Kristoff <>
  • To: Jeff Bartig <>
  • Cc:
  • Subject: Re: [Security-WG] Junos min-ttl and as regex backref feature
  • Date: Tue, 29 May 2018 14:38:33 -0500
  • Ironport-phdr: 9a23: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

On Tue, 29 May 2018 14:20:24 -0500
Jeff Bartig
<>
wrote:

> Based on your original message about wanting to match AS prepending in
> AS paths, I thought you were looking for the equivalent of the following
> Cisco as-path regex: _([0-9]+)(_\1)+_

Yes I was. I'll dig around again, maybe the people telling me this
didn't understand what I was asking. It might also be a new feature in
very recent code?

John



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