In the output with changing origin ,65003 does not appear as origin AS. That is not per task. It shows the Origin changed(IGP vs EGP)
so as-path prepend is the solution. :-) Regards Prakash From: [email protected] To: [email protected] Date: Sun, 5 Jul 2009 16:57:59 -0500 Subject: Re: [OSL | CCIE_RS] v10, vol1, task 11.18 (page 337-338 PG) Do both work? Set origin doesn’t appear to modify the source AS as the task demands… ? From: Bryan Bartik [mailto:[email protected]] Sent: Sunday, July 05, 2009 2:44 PM To: prakash patel Cc: [email protected]; [email protected] Subject: Re: [OSL | CCIE_RS] v10, vol1, task 11.18 (page 337-338 PG) Both should work in this case. I prefer AS path prepending. On Sun, Jul 5, 2009 at 12:05 PM, prakash patel <[email protected]> wrote: Seems as-path prepending as the best approach. > From: [email protected] > To: [email protected] > Date: Sun, 5 Jul 2009 12:13:56 -0500 > Subject: [OSL | CCIE_RS] v10, vol1, task 11.18 (page 337-338 PG) > > Another goofy one? > > TASK 11.18 - R1 should add these 4 loopbacks. When they hit other routers, > they should appear as if originated by AS 65003 > > 92.1.80.1/24 > 92.1.81.1/24 > 92.1.82.1/24 > 92.1.83.1/24 > > PG Solution: > > ! R1 (AS60000) > Access-list 21 permit 92.1.80.0 0.0.3.255 > > Route-map task18 permit 10 > Match ip addr 21 > Set origin egp 65003 > Route-map task 18 permit 20 > > What PG solution gets you: > > *> 92.1.80.0/24 150.100.12.1 0 0 60000 e > *> 92.1.81.0/24 150.100.12.1 0 0 60000 e > *> 92.1.82.0/24 150.100.12.1 0 0 60000 e > *> 92.1.83.0/24 150.100.12.1 0 0 60000 e > > AS has not been modified? Just looks like origin was flipped to egp. > > So rather do it just using path prepending: > > R2(config-router)#do sh ip bgp | i 92.1.8 > *> 92.1.80.0/24 150.100.12.1 0 0 60000 65003 i > *> 92.1.81.0/24 150.100.12.1 0 0 60000 65003 i > *> 92.1.82.0/24 150.100.12.1 0 0 60000 65003 i > *> 92.1.83.0/24 150.100.12.1 0 0 60000 65003 i > > Yes? No? > > > Hotmail® has ever-growing storage! Don’t worry about storage limits. Check it out. -- Bryan Bartik CCIE #23707 (R&S), CCNP Sr. Support Engineer - IPexpert, Inc. URL: http://www.IPexpert.com _________________________________________________________________ Windows Live™ SkyDrive™: Get 25 GB of free online storage. http://windowslive.com/online/skydrive?ocid=TXT_TAGLM_WL_SD_25GB_062009
