Routing

I have a Cisco 1900 series router whcuch was configured by an employee of a consultant firm to our University. The guy is no more in the employ of the firm and we cannot have access to the router. Password and usernames not documented. How can I disa...

Hi,I've l2tunnel configured to wards my neighbour through ISP. I'm seeing the tunnel keeps flapping. What would be tthe reason?interface FastEthernet0/0.230 encapsulation dot1Q 230 no cdp enable xconnect x.x.x.x 21 pw-class o2Wifiendl2tp-class class...

Hi all,                   I have Nexus 5000 and I have upgraded NX-OS from 5.0 to 5.1 but after upgrade the switch is not showing Layer 3 daughter card (N55-D160L3).Please guide me how it can be fixed.Thanks Nomi

i'm configure cisco 2620 as a internet router. my cisco 2620 router has 5  Ethernet interface. One FE and four Ethernet interface (NM-4E). i'm configure  the FE interface as ISP internet interface. and Ethernet 1/1 as a DHCP  LAN interface. as i see ...

Hi All,Is anyone have idea,wether device WS-C4507R-E with 2 sup engine WS-X45-SUP6-E in RPR mode will supoort usage of both Tengigabit ethernet interface of active Sup??? While connecting one more Tengig interface on active sup (module-3) slot 2 (Slo...

Hi guys,on the cisco 4948 switch, I always get an error message says 'Compress config cannot be disabled' when I try to disable 'service compress-config'. Dose anybody know the reason? Thanks in advance!

Hi,  I have already running OSPF network between different locations. There are 3 locations named as A , B and C locations.  The links between A & B are running OSPF1 process and links between C & A and C & B are running OSPF 2 process . Through redi...

Hi,i am using a service-policy on the Dialer interface for my DSL WAN connection to seperate traffic classes in upstream direction:class-map match-all cos-map-dscp-ipsec-1 match  dscp af31!class-map match-all cos-map-dscp-clients-1 match  dscp af21!c...

Hello expertsWhile reading IP header, I understood bit of FRAGMENT  OFFSET field. The thing which is confusing is the statement " The Fragments are specified in units of 8 bytes, which is why Fragment length must be multiple of 8" .Why Fragments are ...

Hi,I'm facing the following issue:Cisco 891 <---1Gb,fulld,ethern---> Cable modem <---10 mbps upload ---> ISPI have a policymap with a shaper and a child policy map configured like this on the wan interface of the 891 (Giga0):  Policy Map QOS_WANOUT_P...

I need to allow internal hosts that do not have a public static IP to be able to communicate with internet hosts, ie download software from the InternetMy public address range is 122.252.14.240/28My internal IP address range is 192.168.100.0/24The AS...

During my rack rental, INE devices were not responding. So I asked for a help in the beginning. 3 Min before the rack rental expires, I was told "WITH ONLY THREE MINUTES REMAINING IN YOUR SESSION? NO." If the customer ask "can you help me?" are you s...