Funny thing about this is that most "experts" that I've dealt with working at major ISPs who do nothing but deal with BGP and routing daily still don't get the configurations right the first time. I've never had a BGP neighbor setup go smoothly (i.e. take less than 2 hours), and it was never a problem on my side of the configuration. So don't blame yourself if you don't get it right the first time. And don't be afraid of it... Most "experts", in my experiences, still make mistakes with BGP.
-----Original Message----- From: Reimer, Fred [mailto:[EMAIL PROTECTED] Sent: Wednesday, September 10, 2003 11:26 AM To: [EMAIL PROTECTED] Subject: RE: Please Help - CIDR - How the bits work [7:75050] Yes! Even I would not feel comfortable configuring BGP in a production environment yet, and although I don't have my CCNP yet, I did pass the routing and switching tests. Fred Reimer - CCNA Eclipsys Corporation, 200 Ashford Center North, Atlanta, GA 30338 Phone: 404-847-5177 Cell: 770-490-3071 Pager: 888-260-2050 NOTICE; This email contains confidential or proprietary information which may be legally privileged. It is intended only for the named recipient(s). If an addressing or transmission error has misdirected the email, please notify the author by replying to this message. If you are not the named recipient, you are not authorized to use, disclose, distribute, copy, print or rely on this email, and should immediately delete it from your computer. -----Original Message----- From: Priscilla Oppenheimer [mailto:[EMAIL PROTECTED] Sent: Tuesday, September 09, 2003 7:32 PM To: [EMAIL PROTECTED] Subject: RE: Please Help - CIDR - How the bits work [7:75050] Dom wrote: > > And one last point, No LAN is an island, why two IG(P) > protocols and no > EG(P) protocol? > > A NA should at least a some understanding of how to connect to > the > outside world - when to use BGP and when not to. Default routing. Wouldn't we all be better off if CCNAs would stay away from BGP?? :-) Priscilla > > Sorry Fred, not having a go at you personally, but these are > points we > all need to think about. > > Best regards, > > Dom Stocqueler > SysDom Technologies > Visit our website - www.sysdom.org > > > -----Original Message----- > From: Dom [mailto:[EMAIL PROTECTED] > Sent: 09 September 2003 23:37 > To: 'Reimer, Fred'; '[EMAIL PROTECTED]' > Subject: RE: Please Help - CIDR - How the bits work [7:75050] > > > Oh, and while I'm on the subject - why EIGRP? This is a > proprietary > Cisco Protocol. OK, I believe that Juniper may have implemented > it, but > to the best of my knowledge no one else has. > > Best regards, > > Dom Stocqueler > SysDom Technologies > Visit our website - www.sysdom.org > > -----Original Message----- > From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On > Behalf Of > Reimer, Fred > Sent: 09 September 2003 22:03 > To: [EMAIL PROTECTED] > Subject: RE: Please Help - CIDR - How the bits work [7:75050] > > > I guess my expectation and Cisco's, or at least their current > expectations as listed on their web site, don't match then. By > my > definition a beginner should know about CIDR, EIGRP, and OSPF. > It's not > like they are inherently difficult to understand. People tend > to make > it sound like rocket science or voodoo magic. It's just a > routing > protocol folks. > > Fred Reimer - CCNA > > > Eclipsys Corporation, 200 Ashford Center North, Atlanta, GA > 30338 > Phone: 404-847-5177 Cell: 770-490-3071 Pager: 888-260-2050 > > > NOTICE; This email contains confidential or proprietary > information > which may be legally privileged. It is intended only for the > named > recipient(s). If an addressing or transmission error has > misdirected the > email, please notify the author by replying to this message. If > you are > not the named recipient, you are not authorized to use, > disclose, > distribute, copy, print or rely on this email, and should > immediately > delete it from your computer. > > > -----Original Message----- > From: "Chuck Whose Road is Ever Shorter" > [mailto:[EMAIL PROTECTED] > Sent: Tuesday, September 09, 2003 3:56 PM > To: [EMAIL PROTECTED] > Subject: Re: Please Help - CIDR - How the bits work [7:75050] > > ""Reimer, Fred"" wrote in message > news:[EMAIL PROTECTED] > > May be I had advanced access to the new NA material then ;-) > In my > > view, > a > > NA should be able to handle basic RIP, OSPF, EIGRP in a small > to > > medium sized network. That would certainly include CIDR. A > NP, IMO, > > would be > for > > advanced RIP, OSPF, EIGRP, and basic BGP, like for > configuring a > > mid-large sized network for connection to the Internet > including > > minimal BGP. IE, IMO, is for ISP engineers that have to deal > with > > extensive IS-IS, BGP > using > > all options, etc, and large to huge (global) networks. > > > > May be I'm just expecting too much, but if you don't > understand CIDR > > you shouldn't be allowed anywhere near a router, let alone be > > responsible for configuring them. > > > with all due respect, I disagree. CCNA is promoted by Cisco as > being > someone capable of designing and configuring a small network. > > http://www.cisco.com/en/US/learning/le3/le2/le0/le9/learning_certificati > on_t > ype_home.html > > "The CCNA certification (Cisco Certified Network Associate) > indicates a > foundation in and apprentice knowledge of networking. CCNA > certified > professionals can install, configure, and operate LAN, WAN, and > dial > access services for small networks (100 nodes or fewer), > including but > not limited to use of these protocols: IP, IGRP, Serial, Frame > Relay, IP > RIP, VLANs, RIP, Ethernet, Access Lists." > > my experience has been that small nets have less if any need > for CIDR > knowledge or expertise. > > Cisco has over the past couple of years been slowly upping the > ante, and > I wish Cisco would get clear as to what skill sets are > appropriate at > what certification level. Cisco tends to be all over the map on > this, > and has been the netire time I have been playing at > certification. But > in general, I believe the idea is that CCxA is beginner, CCxP is > intermediate, and CCIE is high level. > > as with all things certification related, YMMV. I've known > CCNA's who > manage large networks, and I've known CCIE's whose knowledge of > certain > specific areas was less than expert. As can be expected, > depending on > experience, job, place of employment, years in the field, etc. > > Chuck > > > > > > Fred Reimer - CCNA > > > > > > Eclipsys Corporation, 200 Ashford Center North, Atlanta, GA > 30338 > > Phone: 404-847-5177 Cell: 770-490-3071 Pager: 888-260-2050 > > > > > > NOTICE; This email contains confidential or proprietary > information > > which may be legally privileged. It is intended only for the > named > > recipient(s). If an addressing or transmission error has > misdirected > > the email, please notify the author by replying to this > message. If > > you are not the named recipient, you are not authorized to > use, > > disclose, distribute, copy, > print > > or rely on this email, and should immediately delete it from > your > computer. > > > > > > -----Original Message----- > > From: Priscilla Oppenheimer [mailto:[EMAIL PROTECTED] > > Sent: Tuesday, September 09, 2003 12:33 PM > > To: [EMAIL PROTECTED] > > Subject: RE: Please Help - CIDR - How the bits work [7:75050] > > > > Reimer, Fred wrote: > > > > > > No offense, but this is CCNA material. > > > > Do they still teach classful for CCNA, though? Perhaps the > only thing > that's > > hard for him is that 192.168.24.0 has a mask of 255.255.255.0 > in a > classful > > system. Moving the prefix over to the left of that classful > boundary > > isn't something they teach for CCNA yet. (They will soon. The > new > > Networking Academy books teach it from the start now.) > > > > Priscilla > > > > > If you are going for > > > your CCNP, then > > > you should already have your CCNA and know the answer. But > > > anyway... > > > > > > If you need a network with 400 hosts, the smallest subnet > would have > > > > a /23 mask. So take the first part of your given network > and assign > > > it to that: > > > > > > 192.168.24.0/23 (192.168.24.0-192.168.25.255) > > > > > > Then you need one with 200 hosts. Well, that could fit > within a /24 > > > > subnet, so assign the next available to that: > > > > > > 192.168.26.0/24 (192.168.26.0-192.168.26.255) > > > > > > Now you only have 192.168.27.0/24 left from the original > > > 192.168.24.0/23 (which covered > 192.168.24.0-192.168.27.255). You > > > need two 50's, so that > > > should fit within /26 subnets each. Assign them: > > > > > > 192.168.27.0/26 (192.168.27.0-192.168.27.63) > 192.168.27.64/26 > > > (192.168.27.64-192.168.27.191) > > > > > > Finally, you need three subnets that can have two hosts > each, which > > > would fit within /30 subnets. So assign: > > > > > > 192.168.27.192/30 > > > 192.168.27.196/30 > > > 192.168.27.200/30 > > > > > > > > > Fred Reimer - CCNA > > > > > > > > > Eclipsys Corporation, 200 Ashford Center North, Atlanta, GA > 30338 > > > Phone: 404-847-5177 Cell: 770-490-3071 Pager: 888-260-2050 > > > > > > > > > NOTICE; This email contains confidential or proprietary > > > information which > > > may be legally privileged. It is intended only for the named > > > recipient(s). > > > If an addressing or transmission error has misdirected the > > > email, please > > > notify the author by replying to this message. If you are > not > > > the named > > > recipient, you are not authorized to use, disclose, > distribute, > > > copy, print > > > or rely on this email, and should immediately delete it from > > > your computer. > > > > > > > > > -----Original Message----- > > > From: Steven Aiello [mailto:[EMAIL PROTECTED] > > > Sent: Tuesday, September 09, 2003 8:02 AM > > > To: [EMAIL PROTECTED] > > > Subject: Please Help - CIDR - How the bits work [7:75050] > > > > > > I just started my routing class for my CCNP. We are > covering > > > CIDR. The > > > book is VEEEEEERY vague on how the bit patterns break down > and > > > are used. > > > > > > > > > This was a problem posed in one of my CCNP labs > > > > > > I have network number > > > > > > 192.168.24.0 / 22 > > > > > > from this I need > > > networks with > > > > > > 400 hosts > > > 200 hosts > > > 50 hosts > > > 50 hosts > > > 2 hosts (for serial int - no ip un-numbered allowed ) > > > 2 hosts > > > 2 hosts > > > > > > Also no NATing > > > > > > Thanks all I really could use the help > > > > > > Steve > > > **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 > > **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 > > **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 > **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 > **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 **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 **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=75201&t=75050 -------------------------------------------------- **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
