Re: [cisco-ttl] Catalyst 2950 ip conflict problem

From: Serhat Uslay <serhat.uslay_at_....>
Date: Mon, 30 Apr 2007 15:07:02 +1000

sunucular arasinda Sun Solaris varmi ? yillar once onlarda boyle bir problem oldugunu hatirliyorum .
Serhat

sertan sencel <ssencel_at_yahoo.com>
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Re: [cisco-ttl] Catalyst 2950 ip conflict problem

Serhat merhaba
  IP leri management amaciyla biz verdik. Loop oldugunda port fast ve bpdu guard acik oldugu icin zaten port error disabled a dusuyor. IP ler farkli . Ben hala problemi anlayamadim. IOS seviyelerini guncellemeyi planliyorum ayrica son zamanlarda ayni problemi firewall da olusturmaya basladi. Icerde internetten erisilebilen NAT lanmis serverlarin ip leri ozellikle firewall uzerinde gibi iceriye duyruluyor. (MAC adresi firewall ama IP sunucularin) bu da ister istemez NAT ayarlarina dikkati cekiyor ama NAT ayarlarinda da bir problem goremedim.  

  Bir fikri olan varsa ya da boyle bir seyle karsilasmis olan bilgilendirirse sevinirim.  

  Sertan SENCEL  

Serhat Uslay <serhat.uslay_at_zurich.com.au> wrote:  

Sertan,
IP adreslerini siz girmediniz mi switchlere ? Bence static ARP lari kaldirip tekrar her switchin ciktisini once kontrol edin, bir yanlislik olmasin diye.
Eger hersey dogru ise baglantilarda loop olup olmadigina bakin, yani o switchin gonderdigi trafik bir sekilde yine kendisine geliyor olmasi lazim

baska bir porttan. Duz ve cross-over kablolari kontrol edin.

Serhat

sertan sencel <ssencel_at_yahoo.com>
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15/04/2007 11:49 PM
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[cisco-ttl] Catalyst 2950 ip conflict problem

Arkadaslar merhaba,

5-6 tane Catalyst 2950 switch ve bunların Catalyst 3508 'e bağlandığı bir network var. Hepsi aynı vlan de (Vlan1) .

problemi yaratan 2950 nin sh ver çıktısı aşağıda:

Cisco Internetwork Operating System Software IOS (tm) C2950 Software (C2950-I6Q4L2-M), Version 12.1(22)EA4, RELEASE SOFTWARE
(fc1)

Problem şu:

Bir sunucumuz var ve ip si 10.0.0.25 . Arada bir sunucu üzerindeki event log da ip çakışması var diye error alıyoruz. Verdiği mac adresini incelediğimde problemli olan 2950 Switchin kendi mac- adresi olduğunu farkettim.

cisco2950G-253#sh mac-address-table | include xxxx.yyyy.zzzz All xxxx.yyyy.zzzz STATIC CPU

Böyle bir saçmalıkla karşılaşan var mı ?

Not: ip adresi 10.0.0.25 olan sunucu için tüm switchlere statik arp ta girdik ancak bu hataları halen alıyoruz. NEden ne olabilir.

arp 10.0.0.25 aaaa.bbbb.cccc ARPA alias

Sertan SENCEL



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Received on Mon Apr 30 2007 - 09:08:17 CEST

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