My hypothesis is that the ACL entry in all cases is network address followed by wildcard mask. With a wildcard mask of 0.0.3.255, this maps to 255.255.252.0 meaning that the networks are going to jump in the third octet by a value of 4. Therefore, the schema would be:
192.168.0.0/22 192.168.4.0/22 192.168.8.0/22 192.168.12.0/22 192.168.16.0/22 192.168.20.0/22 <--> through 192.168.23.255 Therefore, the logic is converting it to .20 as .21 falls within the range given the configured wildcard mask. On May 22, 2012, at 11:00 AM, [email protected] wrote: > Send CCIE_RS mailing list submissions to > [email protected] > > To subscribe or unsubscribe via the World Wide Web, visit > http://onlinestudylist.com/mailman/listinfo/ccie_rs > or, via email, send a message with subject or body 'help' to > [email protected] > > You can reach the person managing the list at > [email protected] > > When replying, please edit your Subject line so it is more specific > than "Re: Contents of CCIE_RS digest..." > > > Today's Topics: > > 1. Re: CCIE_RS Digest, Vol 76, Issue 63 (Ian Whitmore) > 2. Re: CCIE_RS Digest, Vol 76, Issue 63 (marc abel) > 3. Re: CCIE_RS Digest, Vol 76, Issue 63 (Di Bias, Steve) > 4. Re: CCIE_RS Digest, Vol 76, Issue 63 (Kevan Olhausen) > 5. Re: ospf cost for a specific route (Oluwagbenga Oyebande) > > > ---------------------------------------------------------------------- > > Message: 1 > Date: Mon, 21 May 2012 22:05:55 +0100 > From: "Ian Whitmore" <[email protected]> > To: "kyujin Choi" <[email protected]>, > <[email protected]> > Subject: Re: [OSL | CCIE_RS] CCIE_RS Digest, Vol 76, Issue 63 > Message-ID: <[email protected]> > Content-Type: text/plain; format=flowed; charset="iso-8859-1"; > reply-type=original > > The router works it out. It's smarter than you ;) > > -----Original Message----- > From: kyujin Choi > Sent: Monday, May 21, 2012 8:18 PM > To: [email protected] > Subject: Re: [OSL | CCIE_RS] CCIE_RS Digest, Vol 76, Issue 63 > > I have standard ACL question. > > Problem: Use one standard ACL in order to include two network. > (192.168.20.0 and 192.168.21.0 ) > > The answer was 192.168.20.0 0.0.3.255 > > but I accidently put 192.168.21.0 0.0.3.255. > > However, funny thing is that when I do "show run access-list" it > automatically converted to 192.168.20.0 > > what mechanism makes this happen? > _______________________________________________ > For more information regarding industry leading CCIE Lab training, please > visit www.ipexpert.com > > Are you a CCNP or CCIE and looking for a job? Check out > www.PlatinumPlacement.com > > http://onlinestudylist.com/mailman/listinfo/ccie_rs > > > > ------------------------------ > > Message: 2 > Date: Mon, 21 May 2012 16:23:16 -0500 > From: marc abel <[email protected]> > To: kyujin Choi <[email protected]> > Cc: [email protected] > Subject: Re: [OSL | CCIE_RS] CCIE_RS Digest, Vol 76, Issue 63 > Message-ID: > <CANYR4z=rTYyThCPJWTTWOpO=3mehj0rpyop3+nkf-oftxsd...@mail.gmail.com> > Content-Type: text/plain; charset=ISO-8859-1 > > That is standard ACL functionality. Since they are functionally the same > thing IOS converts the line to the first address in the range. > > On Mon, May 21, 2012 at 2:18 PM, kyujin Choi <[email protected]> wrote: > >> I have standard ACL question. >> >> Problem: Use one standard ACL in order to include two network. >> (192.168.20.0 and 192.168.21.0 ) >> >> The answer was 192.168.20.0 0.0.3.255 >> >> but I accidently put 192.168.21.0 0.0.3.255. >> >> However, funny thing is that when I do "show run access-list" it >> automatically converted to 192.168.20.0 >> >> what mechanism makes this happen? >> _______________________________________________ >> For more information regarding industry leading CCIE Lab training, please >> visit www.ipexpert.com >> >> Are you a CCNP or CCIE and looking for a job? Check out >> www.PlatinumPlacement.com >> >> http://onlinestudylist.com/mailman/listinfo/ccie_rs >> > > > > -- > Marc Abel > CCIE #35470 > (Routing and Switching) > > > ------------------------------ > > Message: 3 > Date: Mon, 21 May 2012 17:29:18 -0400 > From: "Di Bias, Steve" <[email protected]> > To: kyujin Choi <[email protected]>, "[email protected]" > <[email protected]> > Subject: Re: [OSL | CCIE_RS] CCIE_RS Digest, Vol 76, Issue 63 > Message-ID: > <2fe030039b8ad14eb4373ca25779c63ea28346e...@corp-exvs01.corp.uhsinc.biz> > > Content-Type: text/plain; charset="us-ascii" > > IOS voodoo magic! ;) > > Seriously though IOS is just very polite and knows what you did... > > What are the /22's for the 192.168 nets? > > 192.168.0.0 - 192.168.3.255 > 192.168.4.0 - 192.168.7.255 > 192.168.8.0 - 192.168.11.255 > 192.168.12.0 - 192.168.15.255 > 192.168.16.0 - 192.168.19.255 > 192.168.20.0 - 192.168.23.255 , etc > > So IOS figured it would just help you out since that network fell within the > /22 range you gave it. > > This is very helpful sometimes :) > > Cheers! > > > -----Original Message----- > From: [email protected] > [mailto:[email protected]] On Behalf Of kyujin Choi > Sent: Monday, May 21, 2012 12:19 PM > To: [email protected] > Subject: Re: [OSL | CCIE_RS] CCIE_RS Digest, Vol 76, Issue 63 > > I have standard ACL question. > > Problem: Use one standard ACL in order to include two network. > (192.168.20.0 and 192.168.21.0 ) > > The answer was 192.168.20.0 0.0.3.255 > > but I accidently put 192.168.21.0 0.0.3.255. > > However, funny thing is that when I do "show run access-list" it > automatically converted to 192.168.20.0 > > what mechanism makes this happen? > _______________________________________________ > For more information regarding industry leading CCIE Lab training, please > visit www.ipexpert.com > > Are you a CCNP or CCIE and looking for a job? Check out > www.PlatinumPlacement.com > > http://onlinestudylist.com/mailman/listinfo/ccie_rs > > > UHS Confidentiality Notice: This e-mail message, including any attachments, > is for the sole use of the intended recipient (s) and may contain > confidential and privileged information. Any unauthorized review, use, > disclosure or distribution of this information is prohibited. If this was > sent to you in error, please notify the sender by reply e-mail and destroy > all copies of the original message. > > ------------------------------ > > Message: 4 > Date: Mon, 21 May 2012 15:42:17 -0700 > From: Kevan Olhausen <[email protected]> > To: kyujin Choi <[email protected]> > Cc: "[email protected]" <[email protected]> > Subject: Re: [OSL | CCIE_RS] CCIE_RS Digest, Vol 76, Issue 63 > Message-ID: <[email protected]> > Content-Type: text/plain; charset=us-ascii > > IOS "corrects" this as the 21 is technically within the range of the wildcard > mask for 20. I'm guessing the code to detect and produce the error message > was more complicated than the code to correct it. > > -- > Kevan Olhausen > > On May 21, 2012, at 12:18 PM, kyujin Choi <[email protected]> wrote: > >> I have standard ACL question. >> >> Problem: Use one standard ACL in order to include two network. >> (192.168.20.0 and 192.168.21.0 ) >> >> The answer was 192.168.20.0 0.0.3.255 >> >> but I accidently put 192.168.21.0 0.0.3.255. >> >> However, funny thing is that when I do "show run access-list" it >> automatically converted to 192.168.20.0 >> >> what mechanism makes this happen? >> _______________________________________________ >> For more information regarding industry leading CCIE Lab training, please >> visit www.ipexpert.com >> >> Are you a CCNP or CCIE and looking for a job? Check out >> www.PlatinumPlacement.com >> >> http://onlinestudylist.com/mailman/listinfo/ccie_rs > > > ------------------------------ > > Message: 5 > Date: Tue, 22 May 2012 01:40:17 +0100 > From: Oluwagbenga Oyebande <[email protected]> > To: Taqdir Singh <[email protected]> > Cc: [email protected] > Subject: Re: [OSL | CCIE_RS] ospf cost for a specific route > Message-ID: > <cajbxc8poqx8wwebaryyeh5ypwz03fa9bvcda4jdzok24036...@mail.gmail.com> > Content-Type: text/plain; charset=ISO-8859-1 > > For OSPF Inter-Area route you can change the cost by summarizing (with *area > range not-advertise*) and setting the cost of the summary at the ABR. > For OSPF External route you can set the cost during redistribution into > OSPF. > > On 21 May 2012 16:51, Taqdir Singh <[email protected]> wrote: > >> hello team, >> >> how can we change the cost of a specific route in OSPF without altering the >> other routes ? >> _______________________________________________ >> For more information regarding industry leading CCIE Lab training, please >> visit www.ipexpert.com >> >> Are you a CCNP or CCIE and looking for a job? Check out >> www.PlatinumPlacement.com >> >> http://onlinestudylist.com/mailman/listinfo/ccie_rs >> > > > > -- > Olugbenga Oyebande > MD, DAIT > 234-803-302-5287 > http://www.dait-ng.com > Cisco Networks, Network Security & Quality of Service > DAIT Linux Enterprise Network Servers, Web Portal Projects > Broadband Internet Deployment & ISP Consultancy > [image: View my profile on LinkedIn]View Olugbenga Oyebande's > profile<http://ng.linkedin.com/pub/olugbenga-oyebande/15/395/8a9> > > > End of CCIE_RS Digest, Vol 76, Issue 65 > *************************************** > _______________________________________________ For more information regarding industry leading CCIE Lab training, please visit www.ipexpert.com Are you a CCNP or CCIE and looking for a job? Check out www.PlatinumPlacement.com http://onlinestudylist.com/mailman/listinfo/ccie_rs
