I'll try a few......
1. for CCNA version 1.0, subnet zero is not valid, don't know about
version 2
2. the most common problem about tftp to any Unix is that the file being
copied to the server must exist before the copy takes place.
i.e. telnet to the server, cd to the tftp directory and give the command
"touch myconfig" and "touch myios"
then the permissions have to be correct. give the command "chmod 777
myconfig" and "chmod myconfig"
now at the router you can "copy running-config tftp (write net)" and follow
the prompts eventually giving the ip and the filename "myconfig"
now at the router you can "copy flash tftp" and follow the prompts
eventually giving the IP and the filename "myios".
I suggest you get a tftp server for the NT boxes. They have no requirement
for security or pre-existing filenames. Try this until you get the Linux
side working.
3. If you can arrange something like
Server ----- RouterA ------ RouterB ------- Server
then yes, you can do RIP and IGRP. You can also do one area OSPF and 2 area
OSPF.
I have a bunch of routers but this example shows only two turned on, they
are joined like above through their serial connections. The RIP route shows
the ethernet network on the far side of router 2
RouterA>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, * - candidate
default
U - per-user static route, o - ODR
Gateway of last resort is 24.112.214.1 to network 0.0.0.0
C 10.0.0.0/8 is directly connected, Loopback0
24.0.0.0/8 is variably subnetted, 2 subnets, 2 masks
S 24.0.0.0/8 [1/0] via 24.112.214.0
C 24.112.214.0/23 is directly connected, Ethernet0
---> R 200.1.1.0/24 [120/1] via 210.1.1.2, 00:00:13, Serial1 <----
210.1.1.0/24 is variably subnetted, 2 subnets, 2 masks
C 210.1.1.2/32 is directly connected, Serial1
C 210.1.1.0/24 is directly connected, Serial1
S* 0.0.0.0/0 [1/0] via 24.112.214.1
Hope this helps
Kevin Wigle
CCNA CCDA CBE CBI MCSE
----- Original Message -----
From: Viet Tran <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Sent: Wednesday, 10 May, 2000 21:27
Subject: CCNA Study Questions
> Dear Cisco Study Group,
>
> I would like to have your expertise helping me answer
> three following questions of my on-going study for
> CCNA exam.
>
> 1) Should I say subnet zero is valid in exam
> questions? Todd Lammle (Exam Notes), Stevens (TCP/IP
> Illustrated) and Laura Chapell (CCNA Prep Lib) say no.
> Number of valid subnets still has rule (2 exp n - 2).
> However, Allen Leinwal (Cisco Router Configuration,
> Cisco Press) and Kevin Fall (TCP/IP Protocol
> Architecture, UCSC Extension) say yes. Number of
> valid subnets is (2 exp n - 1) using command ip
> subnet-zero. I know both are correct depending upon
> how new the routing protocol is, however, which one
> should we CCNA candidates pick?
>
> 2) Setting TFTP server for my lab which has two
> Linux'es, three NT's (PDC/BDC/WRK), and two routers
> 2500 & 4000, I still cannot make them run the commands
> copying tftp to NVRAM vice versa. I use all Linux
> procedures as told in RedHat Secret textbook. I
> modify /etc/inetd.conf, kill -HUD inetd process id,
> modify /etc/hosts.allow & deny. May I have from you
> experts specific instructions on how to set up such
> TFTP server using RedHat Linux?
>
> 3) With only two routers and some machines (Linux,
> NT), can I set up some lab scenarios to practice RIP
> and IGRP? Am I right saying no because with two
> routers, C (connected) would be the only outcome I can
> get when executing "sh ip route"?
>
> Thanks very much for all wonderful helps.
>
> Regards,
>
> Victor Tran.
> Programmer Analyst III.
> Santa Clara County ISD.
>
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