Re: interger to I P address
Robert D. Scott wrote:
The harder way:
Decimal: 1089055123 Hex (dashes inserted at octals): 40-E9-A9-93 Decimal (of each octet): 64-233-169-147 IP Address: 64.233.169.147
The Python way
import socket, struct socket.inet_ntoa(struct.pack('>l', 1089055123)) '64.233.169.147'
The Tops-10/DDT way: .r ddt DDT 0! 1089055123. lsh 4$x <> $10r$8o0/ 64.,233.,169.,147.,0. ^Z . --Johnny
her at the apnic meeting, we are indulging for a bit into the deep topic of how ot textually represent 32-bit AS numbers. is it xxxx.xxxx or xxxxxxxx? while we readily admit that a deep many year discussion of a dot is clearly a topic for the ietf, we do have to allocate these things, so actually need an answer. on the other hand, i wonder if this ingenious community could come up with the extraodinarily difficult programming task of routines to convert between the two notations. randy
On 28/08/2008, at 8:38 AM, Randy Bush wrote:
her at the apnic meeting, we are indulging for a bit into the deep topic of how ot textually represent 32-bit AS numbers. is it xxxx.xxxx or xxxxxxxx? while we readily admit that a deep many year discussion of a dot is clearly a topic for the ietf, we do have to allocate these things, so actually need an answer.
At AusNOG last week, it was pointed out that using a "." in the middle of an AS number wrecks AS path regexes in RPSL. So those of us using IRR's have to go back and rewrite all our policies. And IRRToolSet needs to be updated, which is probably an even worse proposition :-) I'm strongly in favour of ASPLAIN. I reckon the people who advocate using dots because they think 32-bit ASNs up to 4 billion are too long to remember are probably getting old :-) - mark -- Mark Newton Email: newton@internode.com.au (W) Network Engineer Email: newton@atdot.dotat.org (H) Internode Systems Pty Ltd Desk: +61-8-82282999 "Network Man" - Anagram of "Mark Newton" Mobile: +61-416-202-223
participants (5)
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Johnny Eriksson -
Mark Newton -
Randy Bush -
Rob Austein -
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