Other Network Architecture Subjects

I'm upgrading a 1750 access router from 4Mb Flash to 8Mb. I'm aware that there is no image loaded on the flash card, however, when using xmodem or tftp the flash refuses to accept the image I'm uploading. I've tried it on two different routers just...

I have two routers on a segment and I would like to have them providing redundancy to my workstations when sending packets to another network, something like HSRP provides to IP. I do not know if this redundancy is provided automatically, by configur...

When I trace from router to it own serial interface's ip address, it will reply with two hop to reach interface. Why does it have to go to the next hop interface before come back? This doesn't occur on ethernet interface.

I'm using a Cisco 1710.I don't know how to protect Telnet access from internet.I want to disable telnet access from Internet.Could you help me, it's really urgent.Thanx.

Hello.I have the following scenario:2 Firewall1in load-balance - FW1 and FW22 catalyst 2950 48 ports with 12.1(9) EA1 version - SW1 and SW2FW1 is plugged to SW1 by trunk on interface G0/1, FW2 is plugged to SW2 by trunk on interface G0/1 and between...

Hi ! I have one 1720 router. I use this router to connect to internet and i had configured this router as a firewall. I want to know if i can use this router to connect from home to my LAN behind the router , and how to do this.My connection to inter...

I always see a Active-F for one of my UXME-4E1-DB15 card. Even I run the resetcd f, the problem will still come back after few minutes. I see a error message " loopback test (port 3) failed". in the screen. Anyone, pls help ?

I have a customer with 2 ISP's they want to use BGP so that both lines can be used and for redundancy. Can they use a 2650XM and successfully recieve all BGP routes? Or is the 2650 just not a good router choice for BGP? Should they use something mo...

On CISCO Catalyst 6500. Given only IP address, anyways to check whether this particular IP address is on which port of the switch?

Hello.I have 3550 ws-g5484 Short wavelength (1000BASE-SX) GBIC. I'm trying to connect it to 3Com CB9000 into 9pt GETH 1000BSX SC SWCH MOD (3CB9LG9MC).When the two machines are near one another, they talk to each other. When connecting them at 100 me...

I need to remove an entry that is forwarding all traffic to an insde ip address. ex - ip nat inside source static 192.168.0.10 208.B.C.D The problem is that I need to block some ports. I know how to set up the entry but not how to remove one. Thanks

I have an network connected to us that is using NAT to allow a pool of addresses to access a single host on our network. The command on their router is:ip nat pool RockCty 172.17.1.33 172.17.1.95 prefix-length 24 Is the prefix-length 24 is correct i...

HiI am trying to connect a remote intranet server which is located in HQ but the connection fails.When i ping the remote server from my branch office i can ping and also tracert can reach properly .But when i try to browse the server (HTTP) fails.Hq...

I have a 2520 which I am trying to configure with a external analogue US Robotics modem, to allow me to dial in and connect to my network from a dum terminal. I have the modem connected to serial 3, but each time I try to dial in the modem just ring ...