IP address on serial interfaces of a router

July 6, 2008 @ 1:09 am · Filed under CCIE Study

Thanks, i m getting the point but if someone explains it a little bit more, then i would appreciate alot.
On 7/5/08, Ruben wrote: > > Hi, > > Maybe it’s because (fast)ethernet is broadcast media and serial isn’t? > I mean, on a router, every interface it’s suposse to be in different > network (2 ethernet IFs in the same subnet, that’s switching, isn’t > it?). For example, if you have the two ethernet IFs with host > addresses from the same subnet, thats because are sharing same > segment, so if the router needs to forward a packet to an outside host > in that subnet and do not know MAC address, flood ARP request over the > two ethernet IFs…. now you have a L2 loop. Serial (I assume FR > encapsulation) do not works that way…. > > sorry if I become messy trying to explain… > > cheers > Ruben > > 2008/7/5 Fahad Khan : > > Ramy thank you very very much for your such a positive comment. so nice > of > > you. I want to add one thing that on this group i found every one very > > helpfull and a wonderful guide and teacher, and we people must not mind > the > > comments of our teachers. Well, God is there who knows internal feelings. > > > > well, coming to my question, suppose i configure 10.0.0.1/24 on > > fastethernet0/1 of my cisco router, when i try to assign 10.0.0.2/24 on > > fa0/2, it shows a msg ” 10.0.0.0 overlaps with FastEthernet0/1″ and > didn’t > > take this Ip address. > > while , when i configure 20.0.0.1/24 on my serial1/1 and then configure > > 20.0.0.2/24 on serial1/2, now msg shown indicating any conflit as shown > in > > the case of ethernet interfaces, means only WAN interfaces can take the > IP > > addresses of same subnet (even same ip addresses can be configured on > them) > > why? > > > > > > On 7/5/08, Ramy Sisy wrote: > >> > >> Fahad, > >> I really want to comment about your signature. > >> It is your OWN way to represent yourself, ONLY YOUR OWN WAY, never mind > >> about anybody else’s comment as long as you have your own vision and > know > >> what you are doing. > >> > >> I like the idea that your lab is still loading, do it if it will let you > >> feel better and never mind about any negative comments > >> > >> Would you please provide your sh running config. > >> > >> Best Regards, > >> > >> RAMY SISY, CCIE X 3, loading….. > >> > >> CCIE PROGRAM MANAGER > >> > >> INSPIRED MASTER > >> INSPIRING CREATIVE THINKING …. > >> > >> WWW.INSPIREDMASTER.COM > >> E. RAMYSISY@INSPIREDMASTER.COM > >> > >> > >> > >> > >> > >> > —–Original Message—– > >> > From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf > Of > >> > Fahad Khan > >> > Sent: Saturday, July 05, 2008 3:46 PM > >> > To: Cisco certification > >> > Subject: IP address on serial interfaces of a router > >> > > >> > Dear Experts, > >> > > >> > Different serial interfaces can have IP addresses of same > subnet while > >> > Different ethernet interfaces cannot have , why? > >> > > >> > thanks and regards, > >> > > >> > — > >> > *FAHAD KHAN > >> > > >> > BE Computer Systems NED, > >> > > >> > CCNA,CCDA,CCNP,FOUNDFE,CLSE,QOS,JNCIA,JNCIS,MCP,CCIE (Written), CCIE > >> (Lab) > >> > Loading.. > >> > > >> > Systems Support Engineer, Premier Systems (Pvt) limited, > >> > > >> > Karachi, Pakistan > >> > > >> > 92-321-2370510. * > >> > > >> > > >> > > _______________________________________________________________________ > >> > Subscription information may be found at: > >> > http://www.groupstudy.com/list/CCIELab.html > >> > > >> > > >> > > _______________________________________________________________________ > >> > Subscription information may be found at: > >> > http://www.groupstudy.com/list/CCIELab.html > >> > > >> > > >> > > >> > > >> > > >> > >> > >> — > >> FAHAD KHAN.. > >> > >> > >> _______________________________________________________________________ > >> Subscription information may be found at: > >> http://www.groupstudy.com/list/CCIELab.html > >> > >> > >> > >> > >> > > > > > > — > > FAHAD KHAN > > > > BE Computer Systems NED, > > > > CCNA,CCDA,CCNP,FOUNDFE,CLSE,QOS,JNCIA,JNCIS,MCP,CCIE (Written), CCIE > (Lab) > > Loading.. > > > > Systems Support Engineer, Premier Systems (Pvt) limited, > > > > Karachi, Pakistan > > > > 92-321-2370510. > > > > > > _______________________________________________________________________ > > Subscription information may be found at: > > http://www.groupstudy.com/list/CCIELab.html > > > > > > > > > > >