nanog mailing list archives
Re: Finding ASN from IP address
From: Suresh Ramasubramanian <suresh () outblaze com>
Date: Thu, 09 Oct 2003 23:16:17 +0530
Avleen Vig writes on 10/9/2003 10:19 PM:
I want to create a mapping of IP addresses to ASN, for a specific like of IP addresses. Eg: 1.2.3.4 12.34.56.78 etc, gathered from my system logs. What is the best way of doing this?
Rob Thomas (cymru.com) has something like this - see below. -- srs (postmaster|suresh)@outblaze.com // gpg : EDEDEFB9 manager, outblaze.com security and antispam operations
* To: apops () apops net * Subject: [apops] New Team Cymru IP2ASN whois server * From: Rob Thomas <robt () cymru com> * Date: Fri, 26 Sep 2003 01:56:11 -0500 (CDT) * List-archive: <http://www.apnic.net/mailing-lists/apops/> * List-help: <mailto:apops-request () apops net?subject=help> * List-id: Asia Pacific Operators Forum <apops.apops.net> * List-post: <mailto:apops () apops net> * List-subscribe: <http://mailman.apnic.net/mailman/listinfo/apops>,<mailto:apops-request () apops net?subject=subscribe> * List-unsubscribe: <http://mailman.apnic.net/mailman/listinfo/apops>,<mailto:apops-request () apops net?subject=unsubscribe> * Sender: apops-admin () apops net Fellow networkers, Team Cymru is happy to announce the availability of a public whois server dedicated to mapping IP numbers to ASNs, located at whois.cymru.com. You can find the link to this tool at: http://www.cymru.com/BGP/whois.html This link has been added to our main BGP data page available at: http://www.cymru.com/BGP/index.html We have also extended the functionality of this daemon to support BULK IP submissions for those who wish to further optimize their queries with netcat. Following is a quick overview of how to use it: $ whois -h whois.cymru.com <IP> Where <IP> is replaced by the IP you'd like to map, like so: $ whois -h whois.cymru.com 4.2.2.1 ASN | IP | Name 3356 | 4.2.2.1 | LEVEL3 Level 3 Communications You can also include port information, and/or timestamps in your queries. Be sure to include quotes around your queries, or the daemon will interpret your request as multiple lines: $ whois -h whois.cymru.com "4.2.2.1 -0600 GMT" ASN | IP | Info | Name 3356 | 4.2.2.1 | -0600 GMT | LEVEL3 Level 3 Communications For instructions on how to submit BULK queries via netcat, simply issue the following command: $ whois -h whois.cymru.com help We hope you find this tool useful. Stay tuned for more features! If you have any comments or suggestions as to how we might improve this service, feel free to let us know! Thanks, Rob, for Team Cymru. -- Rob Thomas http://www.cymru.com ASSERT(coffee != empty);
Current thread:
- Finding ASN from IP address Avleen Vig (Oct 09)
- Re: Finding ASN from IP address Michael K. Smith (Oct 09)
- Re: Finding ASN from IP address Suresh Ramasubramanian (Oct 09)
- Re: Finding ASN from IP address Jeff Wasilko (Oct 09)
- Re: Finding ASN from IP address Eric Anderson (Oct 09)
- Re: Finding ASN from IP address Kai Schlichting (Oct 09)
- Re: Finding ASN from IP address Henk Uijterwaal (RIPE-NCC) (Oct 10)
- <Possible follow-ups>
- RE: Finding ASN from IP address Austad, Jay (Oct 09)