Re: [j-nsp] /31 subnet mask
On Sat, Mar 22, 2008 at 02:49:12PM +0200, sunnyday wrote: > hello can any one explain the use of a /31 subnet mask i know its for > saving ip addresses etc etc but i need to know how it works,limitations > and how to implement it. Be warned, some vendors still don't play nice with /31, and will do Very Bad Things (tm) the day you plug them into your nice /31 using Juniper network and start routing packets to them. The biggest "should know better but doesn't" offender is probably Foundry, though I'm sure there are others. -- Richard A Steenbergen <[EMAIL PROTECTED]> http://www.e-gerbil.net/ras GPG Key ID: 0xF8B12CBC (7535 7F59 8204 ED1F CC1C 53AF 4C41 5ECA F8B1 2CBC) ___ juniper-nsp mailing list juniper-nsp@puck.nether.net https://puck.nether.net/mailman/listinfo/juniper-nsp
Re: [j-nsp] QPPB SCU DCU
On Saturday 22 March 2008, Bit Gossip wrote: > Mark, > I would like to police traffic to and from a specific > customer. The customer announces its own prefixes which > are marked with a specific bgp community. > I think that Raymond proposal will match and police > traffic for which the destination IP matches the customer > community; this is traffic to the customer. > If I want to match and police traffic originated by the > customer I should match source ip against the community; > is it possible? How? I can not relay on interface because > customers share the same interface on the router. > Thanks, I haven't tried it in this direction, but I believe you could swap 'destination-class' with 'source-class' in your firewall filter. Mark. signature.asc Description: This is a digitally signed message part. ___ juniper-nsp mailing list juniper-nsp@puck.nether.net https://puck.nether.net/mailman/listinfo/juniper-nsp
Re: [j-nsp] /31 subnet mask
ah yes didnt even think of that - its early my apologies! On Sat, Mar 22, 2008 at 10:53 AM, David Ball <[EMAIL PROTECTED]> wrote: > http://tools.ietf.org/html/rfc3021 > > > On 22/03/2008, Christian Koch <[EMAIL PROTECTED]> wrote: > > /31 is useless/unuseable > > > > /31 = 255.255.255.254 - 2 addresses network address and broadcas, there > is > > no room for host addresses > > > > > > > > > > On Sat, Mar 22, 2008 at 8:49 AM, sunnyday <[EMAIL PROTECTED]> wrote: > > > > > hello can any one explain the use of a /31 subnet mask i know its for > > > saving ip addresses etc etc but i need to know how it > works,limitations > > > and how to implement it. > > > thank you > > > ___ > > > juniper-nsp mailing list juniper-nsp@puck.nether.net > > > https://puck.nether.net/mailman/listinfo/juniper-nsp > > > > > ___ > > juniper-nsp mailing list juniper-nsp@puck.nether.net > > https://puck.nether.net/mailman/listinfo/juniper-nsp > > > ___ juniper-nsp mailing list juniper-nsp@puck.nether.net https://puck.nether.net/mailman/listinfo/juniper-nsp
Re: [j-nsp] /31 subnet mask
http://tools.ietf.org/html/rfc3021 On 22/03/2008, Christian Koch <[EMAIL PROTECTED]> wrote: > /31 is useless/unuseable > > /31 = 255.255.255.254 - 2 addresses network address and broadcas, there is > no room for host addresses > > > > > On Sat, Mar 22, 2008 at 8:49 AM, sunnyday <[EMAIL PROTECTED]> wrote: > > > hello can any one explain the use of a /31 subnet mask i know its for > > saving ip addresses etc etc but i need to know how it works,limitations > > and how to implement it. > > thank you > > ___ > > juniper-nsp mailing list juniper-nsp@puck.nether.net > > https://puck.nether.net/mailman/listinfo/juniper-nsp > > > ___ > juniper-nsp mailing list juniper-nsp@puck.nether.net > https://puck.nether.net/mailman/listinfo/juniper-nsp > ___ juniper-nsp mailing list juniper-nsp@puck.nether.net https://puck.nether.net/mailman/listinfo/juniper-nsp
Re: [j-nsp] /31 subnet mask
Bras implementation saving IPs for 100,000 subscribers. Yet allows better troubleshooting tools rather than unnumbered ifls, and on and on and on. Sent via BlackBerry by AT&T -Original Message- From: [EMAIL PROTECTED] Date: Sat, 22 Mar 2008 14:49:18 To:"Christian Koch" <[EMAIL PROTECTED]>,"sunnyday" <[EMAIL PROTECTED]> Cc:"Juniper-Nsp" Subject: Re: [j-nsp] /31 subnet mask Hold down there. It is extemely useful. Take a look at rfc 3021. Sent via BlackBerry by AT&T -Original Message- From: "Christian Koch" <[EMAIL PROTECTED]> Date: Sat, 22 Mar 2008 10:42:10 To:sunnyday <[EMAIL PROTECTED]> Cc:Juniper-Nsp Subject: Re: [j-nsp] /31 subnet mask /31 is useless/unuseable /31 = 255.255.255.254 - 2 addresses network address and broadcas, there is no room for host addresses On Sat, Mar 22, 2008 at 8:49 AM, sunnyday <[EMAIL PROTECTED]> wrote: > hello can any one explain the use of a /31 subnet mask i know its for > saving ip addresses etc etc but i need to know how it works,limitations > and how to implement it. > thank you > ___ > juniper-nsp mailing list juniper-nsp@puck.nether.net > https://puck.nether.net/mailman/listinfo/juniper-nsp > ___ juniper-nsp mailing list juniper-nsp@puck.nether.net https://puck.nether.net/mailman/listinfo/juniper-nsp ___ juniper-nsp mailing list juniper-nsp@puck.nether.net https://puck.nether.net/mailman/listinfo/juniper-nsp
Re: [j-nsp] /31 subnet mask
Hold down there. It is extemely useful. Take a look at rfc 3021. Sent via BlackBerry by AT&T -Original Message- From: "Christian Koch" <[EMAIL PROTECTED]> Date: Sat, 22 Mar 2008 10:42:10 To:sunnyday <[EMAIL PROTECTED]> Cc:Juniper-Nsp Subject: Re: [j-nsp] /31 subnet mask /31 is useless/unuseable /31 = 255.255.255.254 - 2 addresses network address and broadcas, there is no room for host addresses On Sat, Mar 22, 2008 at 8:49 AM, sunnyday <[EMAIL PROTECTED]> wrote: > hello can any one explain the use of a /31 subnet mask i know its for > saving ip addresses etc etc but i need to know how it works,limitations > and how to implement it. > thank you > ___ > juniper-nsp mailing list juniper-nsp@puck.nether.net > https://puck.nether.net/mailman/listinfo/juniper-nsp > ___ juniper-nsp mailing list juniper-nsp@puck.nether.net https://puck.nether.net/mailman/listinfo/juniper-nsp ___ juniper-nsp mailing list juniper-nsp@puck.nether.net https://puck.nether.net/mailman/listinfo/juniper-nsp
Re: [j-nsp] /31 subnet mask
/31 works just fine for point-to-point link. No need for a network address or broadcast address. Paul Goyette Juniper Networks Customer Service JTAC Senior Escalation Engineer PGP Key ID 0x53BA7731 Fingerprint: FA29 0E3B 35AF E8AE 6651 0786 F758 55DE 53BA 7731 > -Original Message- > From: [EMAIL PROTECTED] > [mailto:[EMAIL PROTECTED] On Behalf Of > Christian Koch > Sent: Saturday, March 22, 2008 7:42 AM > To: sunnyday > Cc: Juniper-Nsp > Subject: Re: [j-nsp] /31 subnet mask > > /31 is useless/unuseable > > /31 = 255.255.255.254 - 2 addresses network address and > broadcas, there is > no room for host addresses > > > > On Sat, Mar 22, 2008 at 8:49 AM, sunnyday <[EMAIL PROTECTED]> wrote: > > > hello can any one explain the use of a /31 subnet mask i > know its for > > saving ip addresses etc etc but i need to know how it > works,limitations > > and how to implement it. > > thank you > > ___ > > juniper-nsp mailing list juniper-nsp@puck.nether.net > > https://puck.nether.net/mailman/listinfo/juniper-nsp > > > ___ > juniper-nsp mailing list juniper-nsp@puck.nether.net > https://puck.nether.net/mailman/listinfo/juniper-nsp > ___ juniper-nsp mailing list juniper-nsp@puck.nether.net https://puck.nether.net/mailman/listinfo/juniper-nsp
Re: [j-nsp] /31 subnet mask
/31 is useless/unuseable /31 = 255.255.255.254 - 2 addresses network address and broadcas, there is no room for host addresses On Sat, Mar 22, 2008 at 8:49 AM, sunnyday <[EMAIL PROTECTED]> wrote: > hello can any one explain the use of a /31 subnet mask i know its for > saving ip addresses etc etc but i need to know how it works,limitations > and how to implement it. > thank you > ___ > juniper-nsp mailing list juniper-nsp@puck.nether.net > https://puck.nether.net/mailman/listinfo/juniper-nsp > ___ juniper-nsp mailing list juniper-nsp@puck.nether.net https://puck.nether.net/mailman/listinfo/juniper-nsp
[j-nsp] /31 subnet mask
hello can any one explain the use of a /31 subnet mask i know its for saving ip addresses etc etc but i need to know how it works,limitations and how to implement it. thank you ___ juniper-nsp mailing list juniper-nsp@puck.nether.net https://puck.nether.net/mailman/listinfo/juniper-nsp
