Re: Friday Follies #2 [7:73371]
At 9:04 PM + 8/1/03, annlee wrote: >Actually, Apple used that block as well for local networking. > >quote: >If the host has a Microsoft Windows OS (9x or 2000/XP) or an >Apple OS, it will fall back to what is called the "auto-configure >address", which is an address from the 169.254/16 address space >(this was in accordance with the >draft-ietf-dhc-ipv4-autoconfig-04.txt, which expired in October, >1999). The range finally made it into a DHCP RFC and is IANA reserved. >The host will check on the network segment for a conflict >with another host using the same address, up to 10 addresses. The >client will then check in the background for a DHCP server every >5 minutes, abandoning the auto-configured address as soon as it >can obtain one from the server. I have no information at this >time on the behavior of various Linux clients. >end quote > >from my DNS-DHCP tutorial > >Annlee Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=73390&t=73371 -- **Please support GroupStudy by purchasing from the GroupStudy Store: http://shop.groupstudy.com FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html
Re: Friday Follies #2 [7:73371]
Actually, Apple used that block as well for local networking. quote: If the host has a Microsoft Windows OS (9x or 2000/XP) or an Apple OS, it will fall back to what is called the "auto-configure address", which is an address from the 169.254/16 address space (this was in accordance with the draft-ietf-dhc-ipv4-autoconfig-04.txt, which expired in October, 1999). The host will check on the network segment for a conflict with another host using the same address, up to 10 addresses. The client will then check in the background for a DHCP server every 5 minutes, abandoning the auto-configured address as soon as it can obtain one from the server. I have no information at this time on the behavior of various Linux clients. end quote from my DNS-DHCP tutorial Annlee Charles Cthulu Riley wrote: > Three words > > MY-CROW-SOFF? > > > ""John Neiberger"" wrote in message > news:[EMAIL PROTECTED] > >>[This isn't the usual type of follies question where you have to figure >>something out. In this case, you either know the answer or you don't. If > > you > >>don't, you can probably figure out how to look it up and it would be good >>information to have in case you see this in your own network.] >> >>Your network uses RFC 1918 private IP address space (10.0.0.0/8) for your >>addressing. You have a logging access list configured on a LAN interface > > and > >>you begin seeing traffic from devices in the 169.254.0.0/16 subnet > > destined > >>for 169.254.255.255. You don't have any machines configured with addresses >>in this subnet, so what could it be? >>**Please support GroupStudy by purchasing from the GroupStudy Store: >>http://shop.groupstudy.com > **Please support GroupStudy by purchasing from the GroupStudy Store: > http://shop.groupstudy.com > FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=73386&t=73371 -- **Please support GroupStudy by purchasing from the GroupStudy Store: http://shop.groupstudy.com FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html
Re: Friday Follies #2 [7:73371]
APIPA leaving for someone else to take further. - Original Message - From: "John Neiberger" To: Sent: Friday, August 01, 2003 3:00 PM Subject: Friday Follies #2 [7:73371] > [This isn't the usual type of follies question where you have to figure > something out. In this case, you either know the answer or you don't. If you > don't, you can probably figure out how to look it up and it would be good > information to have in case you see this in your own network.] > > Your network uses RFC 1918 private IP address space (10.0.0.0/8) for your > addressing. You have a logging access list configured on a LAN interface and > you begin seeing traffic from devices in the 169.254.0.0/16 subnet destined > for 169.254.255.255. You don't have any machines configured with addresses > in this subnet, so what could it be? > **Please support GroupStudy by purchasing from the GroupStudy Store: > http://shop.groupstudy.com ~~ allowattachmentsout Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=73387&t=73371 -- **Please support GroupStudy by purchasing from the GroupStudy Store: http://shop.groupstudy.com FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html
RE: Friday Follies #2 [7:73371]
pad pad pad ftp://ftp.rfc-editor.org/in-notes/rfc3330.txt > -Original Message- > From: John Neiberger [mailto:[EMAIL PROTECTED] > Sent: Friday, August 01, 2003 2:00 PM > To: [EMAIL PROTECTED] > Subject: Friday Follies #2 [7:73371] > > > [This isn't the usual type of follies question where you have > to figure > something out. In this case, you either know the answer or > you don't. If you > don't, you can probably figure out how to look it up and it > would be good > information to have in case you see this in your own network.] > > Your network uses RFC 1918 private IP address space > (10.0.0.0/8) for your > addressing. You have a logging access list configured on a > LAN interface and > you begin seeing traffic from devices in the 169.254.0.0/16 > subnet destined > for 169.254.255.255. You don't have any machines configured > with addresses > in this subnet, so what could it be? > **Please support GroupStudy by purchasing from the GroupStudy Store: > http://shop.groupstudy.com Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=73383&t=73371 -- **Please support GroupStudy by purchasing from the GroupStudy Store: http://shop.groupstudy.com FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html
RE: Friday Follies #2 [7:73371]
Yes! Daniel mentions the RFC and Kevin Wigle mentioned APIPA, or Automatic Private IP Addressing. You can find out more about that at: http://www.webopedia.com/TERM/A/APIPA.html This means that Daniel and Kevin get to share the extra credit prize! Thanks to all who participated, John >>> Daniel Cotts 8/1/03 3:16:24 PM >>> pad pad pad ftp://ftp.rfc-editor.org/in-notes/rfc3330.txt > -Original Message- > From: John Neiberger [mailto:[EMAIL PROTECTED] > Sent: Friday, August 01, 2003 2:00 PM > To: [EMAIL PROTECTED] > Subject: Friday Follies #2 [7:73371] > > > [This isn't the usual type of follies question where you have > to figure > something out. In this case, you either know the answer or > you don't. If you > don't, you can probably figure out how to look it up and it > would be good > information to have in case you see this in your own network.] > > Your network uses RFC 1918 private IP address space > (10.0.0.0/8) for your > addressing. You have a logging access list configured on a > LAN interface and > you begin seeing traffic from devices in the 169.254.0.0/16 > subnet destined > for 169.254.255.255. You don't have any machines configured > with addresses > in this subnet, so what could it be? > **Please support GroupStudy by purchasing from the GroupStudy Store: > http://shop.groupstudy.com **Please support GroupStudy by purchasing from the GroupStudy Store: http://shop.groupstudy.com FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=73388&t=73371 -- **Please support GroupStudy by purchasing from the GroupStudy Store: http://shop.groupstudy.com FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html
Re: Friday Follies #2 [7:73371]
Possibly, but you have to give more detail to win the prize. :-) [Notice: there is no prize associated with this question. ] >>> Jason Viera 8/1/03 2:22:32 PM >>> Bill Gates leaving his mark on your network?? Jason > [This isn't the usual type of follies question where you have to figure > something out. In this case, you either know the answer or you don't. If you > don't, you can probably figure out how to look it up and it would be good > information to have in case you see this in your own network.] > > Your network uses RFC 1918 private IP address space (10.0.0.0/8) for your > addressing. You have a logging access list configured on a LAN interface and > you begin seeing traffic from devices in the 169.254.0.0/16 subnet destined > for 169.254.255.255. You don't have any machines configured with addresses > in this subnet, so what could it be? > **Please support GroupStudy by purchasing from the GroupStudy Store: > http://shop.groupstudy.com **Please support GroupStudy by purchasing from the GroupStudy Store: http://shop.groupstudy.com Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=73379&t=73371 -- **Please support GroupStudy by purchasing from the GroupStudy Store: http://shop.groupstudy.com FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html
Re: Friday Follies #2 [7:73371]
Bill Gates leaving his mark on your network?? Jason > [This isn't the usual type of follies question where you have to figure > something out. In this case, you either know the answer or you don't. If you > don't, you can probably figure out how to look it up and it would be good > information to have in case you see this in your own network.] > > Your network uses RFC 1918 private IP address space (10.0.0.0/8) for your > addressing. You have a logging access list configured on a LAN interface and > you begin seeing traffic from devices in the 169.254.0.0/16 subnet destined > for 169.254.255.255. You don't have any machines configured with addresses > in this subnet, so what could it be? > **Please support GroupStudy by purchasing from the GroupStudy Store: > http://shop.groupstudy.com Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=73375&t=73371 -- **Please support GroupStudy by purchasing from the GroupStudy Store: http://shop.groupstudy.com
Re: Friday Follies #2 [7:73371]
Three words MY-CROW-SOFF? ""John Neiberger"" wrote in message news:[EMAIL PROTECTED] > [This isn't the usual type of follies question where you have to figure > something out. In this case, you either know the answer or you don't. If you > don't, you can probably figure out how to look it up and it would be good > information to have in case you see this in your own network.] > > Your network uses RFC 1918 private IP address space (10.0.0.0/8) for your > addressing. You have a logging access list configured on a LAN interface and > you begin seeing traffic from devices in the 169.254.0.0/16 subnet destined > for 169.254.255.255. You don't have any machines configured with addresses > in this subnet, so what could it be? > **Please support GroupStudy by purchasing from the GroupStudy Store: > http://shop.groupstudy.com Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=73378&t=73371 -- **Please support GroupStudy by purchasing from the GroupStudy Store: http://shop.groupstudy.com FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html
Re: Friday Follies #2 [7:73371]
At 7:00 PM + 8/1/03, John Neiberger wrote: >[This isn't the usual type of follies question where you have to figure >something out. In this case, you either know the answer or you don't. If you >don't, you can probably figure out how to look it up and it would be good >information to have in case you see this in your own network.] > >Your network uses RFC 1918 private IP address space (10.0.0.0/8) for your >addressing. You have a logging access list configured on a LAN interface and >you begin seeing traffic from devices in the 169.254.0.0/16 subnet destined >for 169.254.255.255. You don't have any machines configured with addresses >in this subnet, so what could it be? Oh. Addresses from THAT planet. :-) Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=73380&t=73371 -- **Please support GroupStudy by purchasing from the GroupStudy Store: http://shop.groupstudy.com FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html
