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North American Network Operators Group Date Prev | Date Next | Date Index | Thread Index | Author Index | Historical Re: Class B Address
-----BEGIN PGP SIGNED MESSAGE----- On 20 May 2000, Sean Donelan wrote: > On Sat, 20 May 2000, Patrick Evans wrote: > > And then watch certain tier-Ns filter out your routes? > > As far as I know, every provider has relented and will accept > announcements on ARIN/RIPE/APNIC allocation bounderies. Even > the original Sprint access-list 112 was modified to match the > allocations. > > The problem was people wanted to announce smaller blocks than > the allocation, e.g. /24's out of traditional class B/16 space. Could I ask a question related to this topic? I have been getting varying answers and presume the accurate answer will come from this list. My company has a /20 out of the traditional Class C space. We want to use those addresses rather than the addresses our ISP would give us. We have asked the ISP if they can announce a /24 out of that block, and they have said "sure". However, I have read here about announcement filtering. Will certain providers filter that /24? We have two reasons for using our own space. First, we can get redundancy by connecting with two ISPs and having them both announce the network (or have one announce if the other dies). Second, we can carve up our /20 in /24s and use them for different Internet POPs for our company (e.g. one in the states, one in Europe, one in the Pacific Rim, etc.). I am primarily a security person but unfortunately our LAN and WAN people know less about this than I so I am trying to decide what we should do. Any help or information about the logical design I mentioned would be greatly appreciated. Matt - -- Matthew S. Cramer <[email protected]> Office: 717-396-5032 Lead Security Analyst Fax: 717-396-5590 Armstrong Information Technology Services Pager: 888-769-9367 Armstrong World Industries, Inc. Cell: 717-951-0141 -----BEGIN PGP SIGNATURE----- Version: 2.6.3i Charset: ascii iQEVAwUBOT0viQdAU78fakRxAQFHkwf9E2+o+eae5wJLebN2yvTtOeMwY1feV47j lc59rDE00CFa0ABjWZMVIkam0mkpnk98oazBcx5WVs3iJEOJz0C1/Au34ehoFB5H NHV0nYci0+eDxqBaTvb4RElevnrihR0zuQntXyrRsAXYszblC56PiZzcguJ9p62p bO/ddK46bV3TVlhWgAFhtIrdSMRE2OpkgkUCS2CahMnytqGLrLwx4PpUAVv7Smcf XJedFFYrpkxHFgwfK1jGyTNwFMZIzwXZ1zkH3dnYv61hd52rEnSMFZCBuMUn3/+1 E7QryTbkanG7Sl3LyEDSS3LqaiOeEtatLxKxaIQHYayMAcFKylJerw== =xsOu -----END PGP SIGNATURE-----
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