17.8.3 Packet Tracer - Troubleshooting Challenge

troubleshooting challenge addressing table her one router main router three switches and and devices after an update to the networks some devices were misconfigured you must correct the configurations rather are one and all the switches have been pre-configured with the following enable password Cisco and pave five console password Cisco compa 5i admin username and password admin one humming one pass we go to ID verify the IP addressing and review the configuration here the ipv4 address and ipv6 address okay look at here one side to do 16 1 1 submit mass 26 and the IP is one night once you see is a Miss configurate 172 6122 16 wrong 126 prefix is 192 very good the for Gateway 172 16 172 16 162 DNS server okay and this DNS I guess I think it's right and if the default gateway to verify the default gateway is 62 172 61 62 success pink 2 as well the switch place it on my local network okay 61 success and now access the router using SSH use admin one and admin one pass case assitive okay SSH to the default gateway the default gateway is 62 as a search option L the username is admin to a sensitive capital a the in the IP address enter okay close it by by the host okay and so I cannot access with SSH ok access our watch using the console connection I will use a console in fact if I can't access with SSH I will access with the console go to ID with use the terminal okay I'm very good Cisco okay so use this password for console password cisco compa Phi Phi capital C Cisco calm part 5/5 very good enable use this password Cisco and powerful five capital C Cisco five five five Cisco m55 very good verify show running config and compared with the a dressing-table gigabit zero zero gigabit zero zero ipv4 and ipv6 addresses very good give a bit to wrong I'd be before an ipv6 addresses okay it's miss configure it because it should be once I introduced sixteen one 126 is 192 168 1 126 okay modify this interface go to your terminal in the facility 0 1 IP other as 172 61 126 and the subnet mask 426 is 1 ie to remember that 255 255 255 1 ie to enter ok and review again so reading comfy you got it 0 0 k gigabit 0 1 very good and CL 0 0 1 2 0 0 1 very good not problem you have 8 0 - okay right [Music] one and all the switches have been break confused with the following enable password console password an admin username and password for SSH are one and all the switches this is r1 verify the line vty 0 to 4 log in local transport input telnet and should be ssh modify that configure terminal vty 0 to 4 transport olympic ssh and where is the username and password for ssh no username and password ok so exit from line and configure this username and secret password user name admin case sensitive admin 1 secret password admin one powerful 5 and very good now you have the ok exit so running coffee okay there is a IP domain CCNA - lab comm username admin Wow and logging local transfer input association online video SEO for very good but i want to know if there is a crypto key you can use for example show trip the question question mark to build the options show crypto key show crypto key enter in complete question mark my public key ok my question mark RSA space wish to mark enter ok show crypto key my public key RSA you have the already created okay so it's not necessary to create the ecliptic key for ssh and should be possible to access using ssh from command prompt from IT from ID pc to the router but using ssh repeat the previous command as a sage of shown el admin 1 and IP others of the interface router enter password admin 1 5 5 capital a again admin 1 5 enter very good success that's now a review more devices for example marketing the ipv4 and ipv6 addresses this is marketing okay not problem with marketing beef too as to as to the switch place it on my local network access the console the common prompt and being one 125 172 16 one 125 okay so I can't ping this switch as to I cannot be so each s to request I'm up it's not possible access using SSH to modify this rich as to because if if it had been fails the SSH access will fail to use console Marga the rs-232 console marketing clothes come from open terminal okay and the password Cisco comp alpha enabled Cisco empower 55 show running coffee hostname enable secret password good interface vlan1 116 1 135 okay very good with the subnet mask is 26 and the subnet mask for 26 should be 192 and is 224 to modify this subnet mask over your terminal interface vlan1 IP others once again the do 16 one 125 in super net mask 192 to bed mask exceed and close terminal and from comma bomb pink things are going to s2 from marketing beef to s2 success okay think the the for Gateway my default gateway for marketing is 126 126 success and but review R&D this is the the table 130 now I've I pee before very good 25 is 128 in decimal very good 250 for ipv6 ok should be this CAF 8 2 column column to modify this CIF 80 Cano Cano to modify to see AF a column to call O'Conner to 64 link log R get way very bit pink as 3 253 comma prompt in 122 16 1 to 53 the switch place it on my local network s3 success and also being the default gateway to 54 very good and finally pins the webserver finally pins the webserver 64 100 0 3 being 64 100 0 3 the web server or on internet success verify this from our pcs marketing uncommon prom Ivy to what server very good and it's working very well and for example from marketing access to terminal the terminal the console port honest to you can see on as to as you does not have the username secret password does not have the transport input the society on little bitty white lines now logging locale and so crypto key question mark my pop key RSA enter and crypto key is not configured and SSI should be confused and on all switches ok rather are working Walter switches have been configured with the following having username and password for SSH all switches should be configured with SSH but you can configure that on each switch but I guess switches are not configured with SSH but I got 100% to configure a switch with SSH you need to configure the hostname IP the main you need username secret password you need to configure BTY vty lines transport input SSH logging local and also create the generate the crypto key and you will be able to access SSH from and devices to those switches okay thank you very much you

Channel: Christian Augusto Romero Goyzueta

Views: 4,255

Keywords: cisco, itn, introduction to networks, v7.0, version 7.0, version 7, LAN, WAN, end devices, router, switch, troubleshooting, troubleshoot

Id: YZK4qclkp9k

Length: 19min 26sec (1166 seconds)

Published: Tue Apr 07 2020