I had configurated four ADSL lines to implement multi line load balancing , (four default routes) Everything looks ok , But I can not telnet the interface from outside unless I disable the cef ( no ip cef ) , I do not know why Any one can help me ?
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I am setting my first cisco router an 831. I will have a subnet of 8 ip address with 6 useable. I have two firewalls that need static IP’s and an application server that will need a static IP. Can or does anyone have an example of a config for this situation? I have always [...]
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When we use OSPF as routing protocol with Frame Relay ,we have got these commands to use : ip ospf network point-to-multipoint ip ospf network point-to-multipoint brodcast ip ospf network point-to-multipoint non-broadcast What are the difference between these commands?
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COMMUNITIES path attribute is an optional transitive attribute as described in RFC1997。 But in IOS by default, BGP community attributes are not advertised to peers. The neighbor send-community command enables the sending of BGP community attributes to BGP peers. Why an optional transitive attribute needed a explicit command to advertise it.
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One of the SPIDs on our 3845 is going vlaid and establishes connectivity and the next moment goes invalid. Therefore Layer 2 is just bouncing like every 4 secs. I had telco test, verified SPIDs. I am also observing some strange ‘show isdn status’ output. When both SPIDs are valid the output seems normal. But [...]
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I have cox high speed internet and want to start using a Cisco 2651xm router instead of my small appliance router. Here is my basic config: cable modem -f0/1 port of 2651xm – f0/0 port into small netgear swtich – pc into netgear switch. (the 2651xm has two fastethernet ports) I have set the f0/1 [...]
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I have two WAN connections to a remote office. 1 – 1.5Mbps PVC and 1 – 640kbps PVC. Ideally, I would like traffic to use the 640kbps PVC only when the 1.5Mbps PVC is ‘full’. The PVCs are defined on subinterfaces of an ATM interface on a 7500 series router. I run EIGRP. Can EIGRP [...]
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I am confused about these terminology: Layer 3 routing, layer 3 switching Cisco mentioned in CCNA 1 V3 curriculum 10.2.2 : ” Layer 2 switching takes place within the LAN. Layer 3 moves traffic between broadcast domain—–etc” Does we call it ‘layer 3 switching’, because it is implemented in hardware not software ? Another question [...]
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If the telco is providing 3 x t1 on one circuit ppp. Can we run MPPP by installing 3 x WIC-1DSU-T1-V2 and terminating the circuit to one device?
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I have configured cisco 2620 router through hyperterminal at the time of configuring i put the password “cisco”. Today i have installed Cisco Configmaker. There is one option called Autodetect device wizard in Cisco config maker. I have clicked on that option and its automatically configured the device. When i try to logon through hyperterminal [...]
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