DHCP communication [7:22272]

Hi Group, I am interested in the details (at the packet level) of DHCP communication between the client and a DHCP server when there is a router in the middle. Can any body provide me with sniffer trace of this kind of communication? I use SnifferPro. Thanks Lists Wizard Message Posted

Changing telnet port [7:22271]

Hi Group, I wounder if I can change the telnet port on my router so that people need include a port number when connecting to the router through a telnet connection. Does any body remember how this can be done? Thanks Lists Wizard Message Posted at: http://www.groupstudy.com/form/read.php

CCIE Written: DNS and NAT [7:22305]

Hi Group, Does any body know of a good reference that explan design issues regarding DNS when using NAT on the PIX router. I believe there many questions on the exam that will touch this issue. Thanks Lw Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=22305t=22305

CCIE Written: Pinging an FDDI interface [7:22172]

Hi Group, While studying for CCIE written exam I got the hint that an ethernet interface connected to an FDDI ring through a bridge cannot ping another device that is directly connected to the FDDI ring. Is that true? and why? Thanks Lists Wizard Message Posted at: http

CCIE Written: Ethernet 802.3 Frames [7:21945]

the protocol can be identified. my questions are: What protocols other than novell can use the 802.3 frame? How are they identified within the frame header? Any comments are welcomed Thanks Lists Wizard Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=21945t=21945

Using Aux port as console connection [7:21720]

Hi Group Is it possible to use the aux port as an alternative to the console port? I mean can I connect my pc serial port to the aux port instead of the console? If that is possible do I have to use a roll-over cable? Thanks Lw Message Posted at:

CCIE Written: autocommand [7:21721]

Dear Professionals, I have tried to configure my router with autocommand as shown below. When I telnet to the router it prompt me for a password, when I enter the password the telnet connection will disconnect immediately. Have I done any mistake? What is the purpose of this command? Thanks

CCIE Written: access lists [7:21726]

Dear Professional, I encountered this question while studying. It goes like this: Which command would display interfaces with applied access lists? A- show access-lists B- show ip access lists C- show ip access-lists D- show access lists The correct answer is supposed to be A. I tried this on

Configuring DNS for router [7:21764]

Hi Group, Does any body remember the command to configure the DNS server for the router? I tried to find the command using CLI help feature but I could not. Any help is highly appreciated. Thanks Lists Wizard Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=21764t=21764

Polling my router via SNMP [7:21763]

Hi Group, Could some one tell me how can I poll my router interface using SNMP from my windows 98 work station? In my workplace I use Unix to issue SNMP commands to routers, but I wounder if there is way to do this form windows 98. Could some give any suggestions. Thanks Lists Wizard

MTU Question [7:20096]

Hi Groups, I am a little confused about how the MTU size configured on an interface affects the transmission of packets through that interface. My question is does it affects packets received on the interface or packets transmitted out of the interface? Thanks Lw

Multiple ISDN devices [7:19740]

Hello group, I am studying for the CIT exam and I have a question regarding multiple isdn devices sharing a single bri connection. Assuming a router and ISDN phone sharing a the same s/t bus, how should I Identify each device so that when a phone comes in the router does not respond. Assume that

spid and ldn numbers [7:19752]

Hi Group, I am realy confused about spid and ldn numbers. Which one will a remote user use to dial into my isdn router? Thanks Lw __ Terrorist Attacks on U.S. - How can you help? Donate cash, emergency relief information

Re: spid and ldn numbers [7:19752]

on the end. When dialing into an ISDN, use the real phone #. Hope that helps... Allen - Original Message - From: Lists Wizard To: Sent: Thursday, September 13, 2001 8:31 AM Subject: spid and ldn numbers [7:19752] Hi Group, I am realy confused about spid and ldn

Need to Practice FDDI (remote lab) [7:18518]

Hello Group, Does any one of you know about a remote lab where I can practice configuring and troubleshooting FDDI. I am looking for one that offers long hours for a reasonable price. Any information will be highly appreciated. Thank You Lw Message Posted at:

NetBios Header [7:17371]

Hello Group, I tried my best to find information about NetBios header format, but I could not. Could you please send me any useful link regarding this matter. Thanks Lw Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=17371t=17371

Could not ping 127.0.0.1 [7:17317]

Hi Group Have any one tried to ping the well known loopback address 127.0.0.1? I tried but I could not. I could ping the other ip interfaces on the router though. Any explanation is welcomed. Thanks Lw Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=17317t=17317

Switching Paths [7:17102]

Hi Group What is the command to enable/disable optimum switching on an interface? What is the command to enable/disable silicon switching on an interface? Thanks Lw __ Do You Yahoo!? Make international calls for as low as $.04/minute with

CCIE Written [7:16476]

Hi Group, I will be done with my CCNP in a month and I am looking forward to achieving CCIE written (Switching). What Cisco course beyond CCNP will help me with the CCIE wirtten. Any information will be highly appreciated. Thanks L. W. Message Posted at:

Changing file permissions [7:8197]

hello group, I have a problem copying running-config to a file on the bootflash: directory on my GSR. The file that I want to copy to is read-only. How can I change the permissions on the file? Please have a look at the output of the commands bellow to see what the problem is. GSR14#copy run

ISDN subaddresses [7:8109]

Hi Group, I have a question regarding ISDN subaddress 4365 as in the command isdn answer1 555:4356. Are these subaddresses dynamically assigned by the ISDN switch for each device that is connected to the ISDN network? Are they static subaddresses assigned by the provider? What is the

Start-Stop Bit [7:7654]

Hello Engineers, All devices from end-to-end has to use the Start-Stop bit in the data stream . Is that true or am I wrong? I mean both the local and the remote routers and both the local and the remote modems show use the start-stop bit. please let me know if I am wrong. Thanks Message

BCRAN Illustrated Scenario [7:7651]

Hello Engineers, I have some questions regarding the operation of the BRI router and the office setup illustrated on http://www.cisco.com/univercd/illus/h/33/h11133.gif 1) If both bearer channels are connected to the central office router can I still place an analog call from one of the phones

AAA Authentication without a default method list [7:7276]

Hello Engineers, If AAA authentication is enabled on the router and there is no default method list configured, Assuming there is no method list has been applied to the line, how will the router handles authentication in this case? Thanks Lw Message Posted at:

RFCs Search Engines [7:7277]

Hello Group I know a good search engine for RFCs but I thought some of you might point out a better RFC search engine. The site that I know is http://sunsite.cnlab-switch.ch/cgi-bin/search/standard/nph-findstd?scope=dra ftpattern=bgp+mbgpmatches=3 Please let me know if there better search

Encryption+Compression [7:7012]

Hello, Is it good to both compress and encrypt data going out of an interface? Thanks Law Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=7012t=7012 -- FAQ, list archives, and subscription info:

booting from the rommon command prompt [7:6447]

Hello, I have a router that gives me a series of Cs at boot time before it starts decompressing the image. What the router is doing before decompressing the IOS image? Thanks rommon 3 boot slot0:gsr-p-mz.120-16.ST.bin

DHCP Servers and IP assignment [7:6562]

Hello group, I have a nagging question about how the DHCP server assigns an IP address to a DHCP client from the correct pool of addresses. Let me give a scenario so that you understand my concerns. A host called Subnet_A _Client sends a dhcp request. The router's interface on subnet A is

PPP troubleshooting scenario (config included) [7:5973]

Hellow Engineers, DUT router is connected to GSR router with SONET network. I cannot ping between the two routers although the interface are showing Up-Up. The IPCP is not open. How can I correct the problem without rebooting the routers. I am sure that If I reboot one of the routers, the

Could not apply extended named ip access list [7:5830]

Hello Engineers, Could some one please figure out why I could not apply a named extended ip access to the pos interface below. The router does not give me the option to apply the access list to the interface. Thanks GSR#show access-lists Extended IP access list inboundfiler deny icmp any

What is a Jumbo frame [7:5474]

Hi Could some one explain what a jumbo frame is? Thanks Lw Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=5474t=5474 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct

ISDN line transition and the linecode command [7:5353]

Hi group. I am using the CISCO CIM for ISDN. There is talk about line transition and line-level changes and how the linecode command prvent the loss of synchronization. Can some one explain this better. I have pasted an excerpt from CIM (Cisco Interactive Mentor) Thanks Omer

dialer-group command is not required [7:5357]

Hello Engineers, The central office ISDN router is rarely used to dial a branch office router. Is it necessary to configure dialer-list and dialer-group commands on the Central office ISDN router interfaces? Thanks Lw Message Posted at:

Multiple ISDN switch type on the same router [7:5198]

Group, I got concrete information that if you have multiple bri interfaces on the router, all of them must be connected to the same ISDN switch type. How about if you have a router with multiple PRI interfaces? Should I connect all the PRI interfaces to the same ISDN switch type? Thanks L. W.

dialer-group command [7:5199]

Group, Is the dialer-group command on the BRI interface optional. In other words will the router dial if no dialer-group is configured on the bri interface? Thanks Lw Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=5199t=5199

Re: Creating encrypted password [7:4932]

rd and 7 in the command line, you need to put the encrypted result of cisco in the command, such as 02050D480809. Otherwise, just enter: username engineer password cisco Then use something like: service password-encryption ..To encrypt all the passwords. -Brad McConnell. Lists Wizar

NT2 is it multi-port device? [7:5156]

Hi Group, It looks to me that the NT2 device for isdn connections could be a multiport device with several S-interfaces that TA and TE1 devices can connect to. Is that correct? Thanks Lw Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=5156t=5156

ISDN: Synchronous or Asynchronous? [7:5160]

Hello I have information that that LE (Local Exchange) provides clocking to the NT1 device. Does that mean ISDN uses Synchronous communication? Does that mean PPP and HDLC can be used in both synchronous and asynchrous communications? Thanks Lw Message Posted at:

SNA and CCIE R/S [7:4913]

Hi group, Does the CCIE R/S lab exam covers SNA? Thanks Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=4913t=4913 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and

show interface async 33 [7:4930]

Group What command should you use if you need to see current configuration on interface async 33?. Say I need to see the current encapsulation configured on that interface. Thanks Lw Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=4930t=4930

Creating encrypted password [7:4932]

Group, Cab someone tell me why I could not created and encrypted password for user engineer? I pasted the command output below. Thanks Router(config)#username engineer password 7 cisco Invalid encrypted password: cisco Message Posted at:

Scenario : Routing and dial-up connections [7:4944]

High group, Although I am pretty much familiar with routing in LANs and permanent WAN connections, I find it difficult to understand routing in the following two scenarios: 1- A windows 95 client connected to the remote corporate site through a dial-up connection. The remote access server is

PPP protocol [7:4696]

Hi group, Does any body know about a good online document that describes the operation of Point-to-Point Protocolo or PPP. Thanks in advance Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=4696t=4696 -- FAQ, list archives, and

Extended Ping from set-based switches [7:3391]

Hi, I need to perform extended ping form the console of a set-based switch (6509) catalyst switch. How can I do that. Thanks LW Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=3391t=3391 -- FAQ, list archives, and subscription

Redirect response from 10.100.65.212 [7:3392]

I tried pinging a remote host from a set-based switch. The ping did not go throutgh the first time because the switch was configured with wrong default gateway and I received a redirect response from a host that I do not any thing about. Could some one explain what is happening from the output of

Static route does not appear in routing table

I configured static ip route but i will not appear in the ip routing table. Below is the output of some commands. Can some one explain this? Thanks Lists Wizard Router-12(config)#ip route 10.0.0.0 255.0.0.0 179.70.32.13 Router-12

static route are in the routing table

Router-12#shru Buildingconfiguration... I have create six static routes, only three of them would appear in the routing table. Why Router-12# sh ru version 11.2 ! ip classless ip route 10.0.0.0255.0.0.0 179.70.32.13 ip route 10.10.11.0

ip default-gateway command does not work

I have a problem getting the "ip default-gateway" to work on my router. Please review the output below carefully to see what the problem is. I have also noticed that the "show ip route" command show that Gateway of last resort is not set your input is appreciated

No Subject

I have a problem creating a vlan can some one help me. Here is the output of the command that I executed. Omer 6501 (enable) set vlan 2 Cannot add/modify VLANs on a VTP server without a domain name. 6501 (enable) __ Do You Yahoo!? Talk to your

Escape sequence

Hello, what is the escape sequence if I want to stop the router from traceing the path to a destination ? I have tried many keyboard sequences but I failed. Thanks Rover Router#trace 10.1.38.227 Type escape sequence to abort. Tracing the route to 10.1.38.227 1 * * * 2 * * * 3 *

cannot create vlan in a VTP server

I have a problem creating a vlan can some one help me. Here is the output of the command that I executed. 6501 (enable) set vlan 2 Cannot add/modify VLANs on a VTP server without a domain name. 6501 (enable) _ Do You Yahoo!? Get your free

Loopback address on serial subinterface

Hi There, Does any one knows how to assign a loopback ip address to a serial subinterface? Please look at the output of the show command below so that you understand what I mean thanks. Routersh int s0/0.1 Serial0/0.1 is up, line protocol is up Hardware is PQUICC with Fractional

Resetting Switch configuration

Hello Networkers, I have a 6500 series catalyst switch. I need to reset its configuration to the manufacturer's default configuration. What command should I use to do that? Can any body help me with that. Rover __ Do You Yahoo!? Talk to your

cross-over roll-over and straight-through cables

helo, What is general rule of thumb for cabling tow networking devices? In other words: when should I use cross-over, roll-over or straight-through cables to connect tow networking devices Thanks Rover _ Do You Yahoo!? Get your free

sc0 management interface

Hello, Just a little question about the sc0 management interface in catalyst switches. Is it virtual interface that you cannot actually see? Thanks Rover __ Do You Yahoo!? Talk to your friends online with Yahoo! Messenger. http://im.yahoo.com

How to save switch config

Helo, does any body remember the command to save the switch configuration on a cisco catalyst switch , set based switches like 6500 catalyst switches Rover _ Do You Yahoo!? Get your free @yahoo.com address at http://mail.yahoo.com

Catalyst switch configuration file

Helo, I have a 6500 series Cisco catalyst switch. I need to save the current configuration to a file named "6509-config", play with switch configuration for a while and then copy this file again to the current configuration file so that the switch configuration is back to the original state.

password and enblepass commands on catalyst 6509

Hi , I have a problem getting new passwords to work on the Catalyst 6509 switch that i have on the job. I logged to the switch from the network using tacacs+ account. I pasted what I did below. Please help me figure out what the problem is. Thanks ==

Management vlan and the IP address

Hello, Is it possible to associsate the switch ip address with a vlan other than the vlan 1, in 1900 switches? I know in 6000 series switches you can associate the switch ip address with the vlan you line and make it management vlan. Thanks for your reply

The difference between crossover and rollover cable

Hi , Can any body show me if there is a difference in definition between crossover and rollover cables. Thanks __ Do You Yahoo!? Talk to your friends online with Yahoo! Messenger. http://im.yahoo.com **NOTE: New CCNA/CCDA List has been

snmp

Hi to every body, Does any body know of good web links or good book that give me a good and clear idea of how SNMP works. Thanks __ Do You Yahoo!? Talk to your friends online with Yahoo! Messenger. http://im.yahoo.com

Vlans on routers

Hi to all, I am pretty familiar with vlan configuration on a switch. Can some help with VLAN configuration command on routers Thanks winmail.dat

Vlans on routers

Hi to all, I am pretty familiar with vlan configuration on a switch. Can some help with VLAN configuration command on routers Thanks winmail.dat

BGP Remote router ID

Hello to all, what is the remote router ID in the output of the command bellow. GSR16#sh ip bgp neighbors BGP neighbor is 192.168.6.2, remote AS 65500, external link Index 1, Offset 0, Mask 0x2 BGP version 4, remote router ID 10.9.1.2 Thanks winmail.dat

BGP Remote router ID

Hello to all, what is the remote router ID in the output of the command bellow. GSR16#sh ip bgp neighbors BGP neighbor is 192.168.6.2, remote AS 65500, external link Index 1, Offset 0, Mask 0x2 BGP version 4, remote router ID 10.9.1.2 Thanks winmail.dat

RE: BGP mesh

When all routers are fully meshed they all hear the news from one router, so they do not need to propogate the news among eash other. This help avoid routing loops. Omer -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of Frank Wells Sent: Friday, August