So long as the provider that owns the blocks assigned to you has properly
registered those blocks at arin.net, then the second provider can verify
that and should have no problem letting you announce those blocks to them.
For instance:
$ whois [EMAIL PROTECTED]
[arin.net]
Sprint (NETBLK-SPRN-BLKS) SPRN-BLKS 63.160.0.0 -
63.175.255.255
NETSWORK INC (NETBLK-FON-106828672061426) FON-106828672061426
63.172.195.0 -
63.172.195.255
$ whois [EMAIL PROTECTED]
[arin.net]
UUNET Technologies, Inc. (NETBLK-UUNET63) UUNET63 63.64.0.0 -
63.127.255.255
NetsWork, Inc. (NETBLK-UU-63-107-123) UU-63-107-123
63.107.123.0 -
63.107.123.255
$ whois [EMAIL PROTECTED]
[arin.net]
Earthlink Network Inc. (NET-EARTHLINK-DED8) EARTHLINK-DED8
207.92.0.0 -
207.95.255.255
NetsWork, Inc. (formerly InfiNet Systems Corp.) (NETBLK-ERDD-NETSWORK1)
ERDD-NETSWORK1
207.92.43.0 -
207.92.43.255
Sprint nor UUNET had any problems letting us announce these blocks through
them (Earthlink won't BGP with us unless we sign a new contract, as the
current is with Netcom, but that's another story and we'll be dropping them
when the contract is up in June due to horrible performance and response
times when their UPS's die). I might add that they didn't even balk at
announcing space assigned to one of our customers (but they could always
traceroute the block and see that it already went to our router anyway, but
then that's not really proof if we'd duped another ISP into letting us
announce it, but then this is getting announced by the upstream ISP and not
us):
$ whois [EMAIL PROTECTED]
[arin.net]
ICG NetAhead, Inc. (NET-ICG-BLK-BLK6) ICG-BLK-BLK6
206.214.0.0 -
206.217.255.255
Dreamscope (NET-DREAMSCOPE) DREAMSCOPE 206.216.246.0 -
206.216.246.255
--
Jason Roysdon, CCNP+Security/CCDP, MCSE, CNA, Network+, A+
List email: [EMAIL PROTECTED]
Homepage: http://jason.artoo.net/
""Charles Manafa"" wrote in message
[EMAIL PROTECTED]">news:[EMAIL PROTECTED]...
> Your big challenge is getting an ISP to advertise an address space that
> belongs to another ISP. With mutual consent between the two ISPs, it can
be
> done, but it's far from easy.
>
> CM
>
> > -----Original Message-----
> > From: Brett Johnson [mailto:[EMAIL PROTECTED]]
> > Sent: 09 May 2001 17:10
> > To: 'Charles Manafa'; [EMAIL PROTECTED]
> > Subject: RE: Changing ISPs [7:3831]
> >
> >
> > Ok with 'Portable' IP address space it would be easy, but how about
> > with Provider provided. If we changed the ISP that doesn't provide
> > the space?
> >
> > -----Original Message-----
> > From: Charles Manafa [mailto:[EMAIL PROTECTED]]
> > Sent: Wednesday, May 09, 2001 11:01 AM
> > To: [EMAIL PROTECTED]
> > Subject: RE: Changing ISPs [7:3831]
> >
> >
> > I assume you are going to obtain a Provider Independent IP
> > Address space. If
> > so, you won't have too much difficulty changing ISP. In
> > Europe, you have to
> > update the RIPE database with your routing policy details.
> >
> > CM
> >
> > > -----Original Message-----
> > > From: Brett Johnson [mailto:[EMAIL PROTECTED]]
> > > Sent: 09 May 2001 16:37
> > > To: [EMAIL PROTECTED]
> > > Subject: Changing ISPs [7:3831]
> > >
> > >
> > > If I acquire an AS number and use it with two providers what
> > > happens if in a
> > > year or two
> > > I decided to change one of the providers. Do I have to
> > inform ARIN or
> > > acquire a new AS
> > > number? What would be the process of informing the Internet
> > > (through BGP)
> > > when changing
> > > the ISP? How about if I added a third ISP instead of changing ISPs?
> > >
> > > Thank you
> > >
> > > Brett Johnson
> > > FAQ, list archives, and subscription info:
> > > http://www.groupstudy.com/list/cisco.html
> > > Report misconduct and Nondisclosure violations to
> > [EMAIL PROTECTED]
> > FAQ, list archives, and subscription info:
> > http://www.groupstudy.com/list/cisco.html
> > Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
> FAQ, list archives, and subscription info:
http://www.groupstudy.com/list/cisco.html
> Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Message Posted at:
http://www.groupstudy.com/form/read.php?f=7&i=4297&t=3831
--------------------------------------------------
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