some network output...

i'm starting out with rip, then eigrp and ospf... you can see below how it's shaping up... still have many things to do, vlan and interface descriptions, ios upgrades, serial connections, trunking, stp, vtp, etc... i'd like to say i'm having fun, but it's gone from a treat to an obsession... vpn, firewall, sdm, frame... damn...

sw3550#sh cdp neigh
Capability Codes: R - Router, T - Trans Bridge, B - Source Route Bridge
                  S - Switch, H - Host, I - IGMP, r - Repeater, P - Phone

Device ID        Local Intrfce     Holdtme    Capability  Platform  Port ID
r2620_03         Fas 0/18           148           R       2620XM    Fas 0/0
r2620_02         Fas 0/8            123         R S I     Cisco 2620Fas 0/0
r2620_01         Fas 0/1            176           R       2620XM    Fas 0/0
sw3550#

sw3550#sh ip route
Codes: C - connected, S - static, I - IGRP, R - RIP, M - mobile, B - BGP
       D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area
       N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2
       E1 - OSPF external type 1, E2 - OSPF external type 2, E - EGP
       i - IS-IS, L1 - IS-IS level-1, L2 - IS-IS level-2, ia - IS-IS inter area
       * - candidate default, U - per-user static route, o - ODR
       P - periodic downloaded static route

Gateway of last resort is not set

R    1.0.0.0/8 [120/1] via 192.168.1.100, 00:00:07, Vlan1
R    2.0.0.0/8 [120/1] via 10.0.0.2, 00:00:21, Vlan2
C    100.0.0.0/8 is directly connected, Loopback0
R    3.0.0.0/8 [120/1] via 172.16.0.2, 00:00:14, Vlan3
C    172.16.0.0/16 is directly connected, Vlan3
     10.0.0.0/24 is subnetted, 1 subnets
C       10.0.0.0 is directly connected, Vlan2
C    192.168.1.0/24 is directly connected, Vlan1
sw3550#

as an old college friend of mine used to say:

may the bulls run wild...

the eagle has landed...

i have stuff...

craze decided to help...

a snap of CMS...

the 3550 i got yesterday on CMS... more later... it's simply embarrassing in light of uber-geek...

why? how? wtf...

why hasn't cisco fabricated rj-45 to usb console cables?
so you can go out and spend 40 bucks to buy a 3rd party adapter...

when a root bridge is established, why is its priority 32769?
because of  sys-id-ext 1

how often does spanning-tree send hellos?
every 2 seconds

if you debug spanning-tree you can expect a lot of output at the console, so how do you preempt this?
by issuing the command un all before issuing the command debug spanning-tree... why?
so you can stop the madness by pressing up arrow and enter, to turn it off...

from a telnet session you issue debug spanning-tree... why isn't there any output to the screen?
you haven't issued terminal monitor from privileged-exec mode, that's why...

to accomplish convergence, what states must the ports be in?
blocking and forwarding

and how long does convergence take?
50 seconds

how do you turn off stp to get rid of this 50 second shit on a port?
in interface configuration mode use spanning-tree portfast and the the interface will move to forwarding on linkup

a new beginning...

my first shipment arrived today, the 3550, i expect the rest of the gear tomorrow... it's kind of weird having the shit in my apartment... it'll be a constant reminder; configure me, connect me, make me go to porn sites... i'll do pictures tomorrow once i have them racked...

so i take the switch out of the box, set it on a stand for now, grab the console cable and i'm ready to connect it to my laptop...  no serial port... not a problem... i break out the old desktop, monitor, etc, power it up and i'm all set...  no serial port on that either and that's got to be five years old by now... damn... off to office max, nice that it's just up the road, and i look around a bit... over ten bucks for a power cable, nearly thirty for a long rj-45... i turn a corner and there is the section i'm looking for...  37 dollars for a serial to usb adapter... i have these visions that i'm about to nickel and dime myself into the poor house with this project... all right, buy it, return it before 14 days are up, and get a cheaper one on line... not a chance, 30 bucks on line not including shipping... good God...

had to install software for it also...  connect it up, run putty, select serial, com1, defaults to 8, none, and 1
and i get errors; serial port not found...  go to control-panel, system, hardware, (xp machine) and there it is... on com3...

works great... connected it up through the wireless router to the cable modem and i'm pinging the time warner gateway within moments... routers and more switches tomorrow...

is this heaven or hell...

more from this guys basement here... http://smorris.uber-geek.net/lab.htm

i want to party with this guy...

quiz...

1) what is the root bridge default priority?

2) what is the DOD equivalent of the OSI transport layer?

3) what is 90.37.200.31 in binary?

4)  /17.  how many subnets and hosts?

5)  what is the hop count for OSPF?

6) what kind of traffic does IGMP service?

7) IP is connection oriented? true or false

8) what is 2 to the 15th?

9) what does CHAP stand for?

10) how do you turn off CDP on an interface?

bonus:  what is the theme of this quiz?

answers after the trip

contivity takes a bow...

the nortel contivity firewall was reaching end of life, at least my life, so i seized the opportunity to introduce another cisco system to the community; the ASA-5520...

the 5520 naturally had its roots in pix technology, so i ordered it and also ordered a book... the book that was available was geared towards the 5520 but it was mostly pix with a few hints about the new (for us) firewall...

i was a little sad to see contivity go...  she had been a good box and over the years i had become accustomed to it, pretty good at its filtering features actually, but she had had her day and i always wanted more cisco wherever i could get it...remember, i was always fighting the nortel monster...

the 5520 took about a half a day to implement but she came around... the front end was a lot like what SDM is now...  not awfully friendly but serviceable... the feature set was extensive and whereas the VPN of the contivity was pretty straight forward, 5520 was a little more complicated... my long term cisco hopes were slowly, very slowly, coming to fruition...

a poor man's routing...

routing rudiments... 

given: hosts are directly connected, host_A pings host_B

with a nod to lammle, odom, et al

1) host_A creates an echo request for host_B (ICMP)

2) ICMP hands the request to IP, which makes a packet that contains the IP source address, the IP destination address and a protocol field

3) IP determines whether the destination is a local or remote network

4) in this case it is remote, so the packet needs to go to the remote network determined by host_A’s OS (default gateway 172.16.10.1)

5) the MAC address of 172.16.10.1 (E0) is known by host_A. this supposes the arp cache has resolved E0’s IP address to a hardware address. (the output of arp -a will display E0’s MAC address) the packet will be framed by the datalink layer and shipped to the MAC address of E0. hosts only communicate with MAC addresses on the local network

6) if not already resolved, the host sends an arp broadcast to the local network. Upon receipt of the resolution, the host cache’s the MAC address of E0 and encapsulates the packet in a frame with control information.

In both the above cases (hardware address known, hardware address resolved) the framed destination MAC address (E0) and source MAC address (host_A), an ether-type field (network layer IP), the packet, and FCS (frame check sequence which holds the result of a cyclic redundancy check CRC) are shipped to the MAC address of the default gateway, not the MAC address of the remote host

7) the frame thusly prepared, is ready to traverse the physical layer bit by bit

8) at the router, the packet is taken from the frame and off loaded to IP. The remainder of the frame is discarded.

a good place to jump

my plan...

i am setting up a lab comprised of 3 2610xm routers, a 3550 layer 3 switch, 2 2950 switches and all the cables...  basically, a ccnp lab in which i will share lab experiences, lab set ups and anything else i bump into along the way... all things useful that i find towards a certification end, i will post... i will continue to share networking experiences i've had over the past twenty years, as well as any tips or help i may be able to provide... test questions, labs, trial and error, etc...

a word on braindumps...  don't waste your time... trust in the materials within your reach... do it legitimately and it will be worth it in the end...  there are no shortcuts...

please post any and all comments or suggestions and feel free to email any time...   any difficult areas you might have with study materials, test questions, et al...

this will help me in my quest, and hopefully, this will help in yours...