You say you can't reach the DNS server in another part of the network. I'm assuming the DNS server is 10.x.x.x also. If so is no ip classless the culprit. Not quite sure based on the info why your messin with ADs either except to put a higher cost on the backup, ISDN, links.
good luck Dave David j wrote: > > Hi everybody. > The scenario is the following: > I have two Cisco 7500 an several 2600 connected to one of them by E1s, the > ISDNs of the 2600 are connected to the opposite 7500 and are configured as > backup lines. The 7500s are connected between them by ATMs an EIGRP is the > routing protocol. As you can guess, the 2600 belong to different branch > offices. I tried to summarize in both 7500 with the command ip > summary-address eigrp 1 10.0.0.0 255.0.0.0, but I also had a static route > with AD 200 to reach a DNS server in another part of the network, no managed > by me, and as the summary-address command create default route, with AD 5, > 10.0.0.0 ponting to Null0 in the 7500s, people in the branch offices > couldn't reach the DNS server. > Now, i'm thinking about using the same command but changing the AD, i.e: ip > summary-address eigrp 1 10.0.0.0 255.0.0.0 230, but before doing anything > i'd like to know yor opinions. Do you see any problems?routing loops, perhaps? > I have been reading some post by MADMAN in the archives about summary > address, but I think this a bit more complex, and interesting, scenario, and > it's a real scenario! > Thank you for your time, and sorry for my English, as you can see it isn't > my first language. > Happy new year for everybody! -- David Madland Sr. Network Engineer CCIE# 2016 Qwest Communications Int. Inc. [EMAIL PROTECTED] 612-664-3367 "Emotion should reflect reason not guide it" Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=30536&t=30528 -------------------------------------------------- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]

