[AusNOG] New /21 on Bogan / Delinquent Lists

[Nathan Brookfield]

Hi All,

I know this is a bit of an unusual request, not something I see on AUSNOG regularly but we have had the very unfortunate luck of being assigned a /21 from APNIC within the last 2 months which we are now slowly starting to assign to customers.

When the first customer was put onto this subnet they advised that traffic from our network to ExeTEL appeared to be null routed into a blackhole so after raising a ticket with ExeTEL I quickly found out that the allocation had been blacklisted some years back for malicious activity, over the last weeks we have been escalating issues to Singtel and a long laundry list of other peers who have the prefix blocked.

Today we are dealing with Telstra who have the prefixed denied on all SMTP servers which has been fun but looks like it’s almost at an end. 

Can I please reach out to all Sys Admins on the group to check your networks and if you are blocking 180.92.192.0/21 if you could please allow traffic from this subnet back into your networks.

APNIC of course are no help, the fact it appears this subnet is less than 90% routable does not help as they just won’t re-issue the allocation plus we are too far past that stage now ☹

Thanks in advance!

Kindest Regards,
Nathan Brookfield

IT Operations
The One Provider Group Pty Ltd

Direct:		(02) 4307 4206
Fax:		      (02) 4307 4201
Network Ops:	(02) 9037 4343
Web: 		      http://www.serversaustralia.com.au
Office Address:	2/2 Teamster Close, Tuggerah NSW 2259
Postal Address:	PO Box 3187, Tuggerah NSW 2259