Re: Question about summary address [7:30528]
Thanks MADMAN, I'll think about your suggestion but.the next year :-> Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=30592&t=30528 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: Question about summary address [7:30528]
Here is what I would do in a hub and spoke, especially when ocncerned about routing table size when in reality more than one route is a waste. Enable EIGRP on all routers and at the head site "leak" default. Remote routers have the routes they need, they are either locally connected or going down the WAN. Dave David j wrote: > > To cisck0k1d, I'm trying to summarize the ip 10.x.x.x in order to reduce the > routing table in the routers of branch offices, because I also have some > 2500 with little memory. > To MADMAN: yes, of course, the DNS server has an ip 10.10.10.40, I have the > ip classless in all the routers, the problem is the route pointing to Null0 > created by IOS to avoid routing loops. > I only manage the networks 10.50.x.x-10.60.x.x, to reach the rest of > 10.x.x.x I use a default route with AD 200, after writing the ip summary > address in any interface, the default route that I have (and that works > fine) is overwritten by the other default route to 10.x.x.x pointing to > Null0 because it has a little AD (5), and that's the problem. > By the way, to put a higher cost in backup lines, I have used the delay 9000. > I hope I have been more explicit this time. Thanks. -- 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=30573&t=30528 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: Question about summary address [7:30528]
To cisck0k1d, I'm trying to summarize the ip 10.x.x.x in order to reduce the routing table in the routers of branch offices, because I also have some 2500 with little memory. To MADMAN: yes, of course, the DNS server has an ip 10.10.10.40, I have the ip classless in all the routers, the problem is the route pointing to Null0 created by IOS to avoid routing loops. I only manage the networks 10.50.x.x-10.60.x.x, to reach the rest of 10.x.x.x I use a default route with AD 200, after writing the ip summary address in any interface, the default route that I have (and that works fine) is overwritten by the other default route to 10.x.x.x pointing to Null0 because it has a little AD (5), and that's the problem. By the way, to put a higher cost in backup lines, I have used the delay 9000. I hope I have been more explicit this time. Thanks. Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=30565&t=30528 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: Question about summary address [7:30528]
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]
Re: Question about summary address [7:30528]
I guess the obvious question that you didn't address is why are you trying to summarize the 10 network on different routers... or at all for that matter? The k1d ""David j"" wrote in message [EMAIL PROTECTED]">news:[EMAIL PROTECTED]... > 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! Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=30532&t=30528 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Question about summary address [7:30528]
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! Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=30528&t=30528 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
