Error Overlaps With Fastethernet
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Overlaps With Gigabitethernet0/0
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this Thread… lon21 Senior Member Join Date May 2011 Posts 201 Certifications Computer Science and Network Computing BSc, CCNA 06-12-201108:01 PM #1
Overlapping Ip Address Problem
Why do these overlap? I'm trying to do a lab in PT. 172.16 0.0 overlaps with fastethernet0 0 and get the following error? LAB_A(config-if)#int se 0/0/0 LAB_A(config-if)#i LAB_A(config-if)#ip address 172.16.20.1 255.255.0.0 % 172.16.0.0 overlaps with FastEthernet0/0 LAB_A(config-if)#no this ip address and/or subnet mask is not allowed for use on a port shutdown % 172.16.0.0 overlaps with FastEthernet0/0 Serial0/0/0: incorrect IP address assignment LAB_A(config-if)#do show ip int b Interface IP-Address OK? Method Status Protocol FastEthernet0/0 172.16.10.1 YES manual up up FastEthernet0/1 unassigned YES https://learningnetwork.cisco.com/thread/54871 unset administratively down down Serial0/0/0 172.16.20.1 YES manual administratively down down Vlan1 unassigned YES unset administratively down down LAB_A(config-if)# Quote Login/register to remove this advertisement. jwashington1981 Senior Member Join Date Dec 2008 Location Chesapeake, VA Posts 137 Certifications B.S. Network Security, CCNA, Security + 06-12-201108:16 PM #2 We need more information to be able to answer that. What's the mask associated with http://www.techexams.net/forums/ccna-ccent/67074-why-do-these-overlap.html the ip address assigned to Fa 0/0? Quote mark076h Senior Member Join Date Nov 2006 Posts 153 06-12-201108:25 PM #3 Originally Posted by jwashington1981 We need more information to be able to answer that. What's the mask associated with the ip address assigned to Fa 0/0? I don't think so. He is trying trying to put the 172.16 network on both interfaces. Quote CodeBlox Lost a treasure Join Date Jun 2010 Posts 1,326 Certifications A+, Security+, CCNA 06-12-201108:31 PM #4 Your mask is "wrong". In order for this to work, you could use something like a /20 which is 255.255.240.0 A /24 would do too: 255.255.255.0 Currently reading: Network Warrior, Unix Network Programming by Richard Stevens Quote lon21 Senior Member Join Date May 2011 Posts 201 Certifications Computer Science and Network Computing BSc, CCNA 06-12-201108:32 PM #5 Originally Posted by jwashington1981 We need more information to be able to answer that. What's the mask associated with the ip address assigned to Fa 0/0? I have a Router (Lab A) Which connects to a pc via fa 0/0 with the ip address of 172.16.10.1 I
two 2811 routers in Packet Tracer but when I am trying to place the both interface on router to same subnet I am getting the error message http://www.lammle.com/discussion/archive/index.php/t-1964.html IP overlaps with fastethernet 0/0 However EIGRP is already enabled. here is http://networking-forum.com/viewtopic.php?f=33&t=9646 the config Gateway of last resort is not set 10.0.0.0/24 is subnetted, 4 subnets D 10.0.0.0 [90/284160] via 10.0.3.1, 00:03:00, FastEthernet0/1 [90/284160] via 10.0.1.1, 00:02:59, FastEthernet0/0 C 10.0.1.0 is directly connected, FastEthernet0/0 C 10.0.2.0 is directly connected, Ethernet1/0 C 10.0.3.0 is directly connected, FastEthernet0/1 router1(config) # router1(config) overlaps with #int router1(config) #interface f router1(config) #interface fastEthernet 0/1 router1(config-if)#ip add 10.0.1.3 255.255.255.0 % 10.0.1.0 overlaps with FastEthernet0/0 crissa11-24-2009, 01:57 AMHello all, I am trying to buldling links between two 2811 routers in Packet Tracer but when I am trying to place the both interface on router to same subnet I am getting the error message IP overlaps with fastethernet 0/0 overlaps with fastethernet However EIGRP is already enabled. here is the config Hello, the solution is already in your problem description: Don't try to configure two interfaces on the same router for the same subnet! It will not work! HTH! Bye, Tore lammle11-24-2009, 02:12 AMI have this answer in my latest CCNA book. Although it is way above the CCNA and CCNP objectives, Cisco's EIGRP routing protocol will allow two interfaces into the same subnet, under special conditions.. It is not really documented on cisco's docs...but I love it so I added it in my book.... I have done this at some customer sites to bundle two T1's together between buildings and it works great. However, since this is above the CCNA objectives, it will not work on Packet tracer...it will however, work in production. It is So MUCH better than trying to use PPP to multilink the links. So the problem is with PT, not with EIGRP in you example. Todd Lammle crissa11-24-2009, 06:25 AMHello, thanks for the update. Bye, Tore Pramod.purohit11-24-2009, 01:10 PMThanks a lot for clearing it. coop0412-20
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