I guess with all the corrections Bauke have made to the workbooks he deserves some proctor labs sessions for free :)
On Tue, Dec 29, 2009 at 10:03 PM, Marko Milivojevic <[email protected]>wrote: > > The solution is wrong and this is becoming real embarressement. Se0/2/1 on > R6 should be configured as: > > int ser0/2/1 > ip address 172.16.69.2 255.255.255.254 > ! > > However, I think the question may have been misunderstood by the person > solving the lab in a sense that there are two obvious solutions - one is to > subnet /30 into two /31 subnets and the other one is to create multilink PPP > between R6 and R9 and use /30 mask. > > I will talk to the original developer to take a closer look. This has, for > now, been changed in our development copy to 2x /31. > > Keep up the good work, Bauke! > > -- > Marko Milivojevic - CCIE #18427 > Senior Technical Instructor - IPexpert > > Mailto: [email protected] > Telephone: +1.810.326.1444 > Fax: +1.810.454.0130 > Community: http://www.ipexpert.com/communities > > On Wed, Dec 30, 2009 at 01:24, Bauke Dzavhale < > [email protected]> wrote: > >> Team, >> >> Can someone help clarify the ip add assignment on R6 and R9, Task 2-2 >> LAB5- Vol2 DSG? >> >> We are give the subnet 172.16.69.0/30 to be used and we have 4 interfaces >> (s0/2/0, s0/2/1) on both R6 and R9. >> This is my understanding: >> >> 1- The subnet gives us 4 ip addresses: 172.16.69.0, 172.16.69.1, >> 172.16.69.2, 172.16.69.3, with *.0* and * .3* being subnet and >> broadcast address respectively. >> >> There is 2 approaches here: >> a) If I did not have the restriction to use /30 subnet, I would open up >> the range and I would use a /29 subnet, which would give me enough [6 >> usable] ip addresses to assign to my 4 interfaces. >> b) Since I have the /30 restriction in place I will use the 4 ip >> addresses indicated above for my 4 serial interfaces [provided ip classless >> is in place], and this allows me to do the following: >> >> In R6: >> int s0/2/0 >> ip add 172.16.69.0 255.255.255*.252* >> >> int s0/2/1 >> ip add 172.16.69.*2 * 255.255.255.*252* >> >> >> In R9: >> int s0/2/0 >> ip add 172.16.69*.1* 255.255.255.*252* >> >> int s0/2/1 >> ip add 172.16.69.3* * 255.255.255.*252* >> >> The solution assigns the same ip add [172.16.69.*0 * 255.255.255.*254*] >> to both s0/2/0 and s0/2/1 on R6, and the remaining (.1 and .3 ) are >> assigned to R9. >> >> My obvious question are: >> - Can we do this on R6? The *.2* has not even been used but s0/2/0 and >> s0/2/1 share the same ip add [*.0*] on R6.... >> - Why change the mask to 255.255.255.*254* (/31) ? The requirement is to >> use /30. >> >> >> Thanks >> >> B. >> >> ------------------------------ >> *All new Yahoo! Mail - * <http://ca.promos.yahoo.com/newmail/overview2/>Get >> a sneak peak at messages with a handy reading pane. >> >> _______________________________________________ >> For more information regarding industry leading CCIE Lab training, please >> visit www.ipexpert.com >> >> > > _______________________________________________ > For more information regarding industry leading CCIE Lab training, please > visit www.ipexpert.com > >
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