[ncc-services-wg] Announcement on prefix size change for k.root-servers.net (AS25152)

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[Apologies for duplicates]

Dear Colleagues,

The RIPE NCC, as operator of k.root-servers.net, will announce the
less-specific prefix 193.0.14.0/23 within the next few days. This is
due to a change in our traffic engineering policies.

Affected locations:
*) AMS-IX (NL)
*) LINX (UK)
*) JP-NAP, DIX-IE (JP)
*) NAP (US/FL)
*) NIXI (IN)

We advise you to check whether you are peering with AS25152 and, if
so, to ensure that you are allowing the prefix mentioned above.

These are the recommended filter settings for our peerings:

Cisco:
- ---cut---
ip prefix-list as25152-policy seq 10 permit 193.0.14.0/23 le 24
ip prefix-list as25152-policy seq 20 deny 0.0.0.0/0 le 32
- ---cut---

Juniper:
- ---cut---
policy-statement as25152-policy {
    term accept {
        from {
            route-filter 193.0.14.0/23 prefix-length-range /23-/24 accept;
        }
    }
    term reject {
        then reject;
    }
}
- ---cut---

If you have any questions, please contact us at <kroot-ops at ripe.net>.

Regards,

- --
Wolfgang Nagele
DNS System Engineer

RIPE NCC
Singel 258
1016 AB Amsterdam
Tel: +31 20 535 4444
Fax: +31 20 535 4445
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