CCIE Brianteasers

From: Albert Lu (albert_ccie@xxxxxxxxx)
Date: Sun Nov 25 2001 - 18:41:54 GMT-3


   
Hello Group,

Just working through a practise lab at the moment, with solutions that don't
look correct. Could someone confirm these solutions? (Don't worry, no NDA is
being broken, as they are from a practise lab scenario)

1. Generate traps that are supported under the RFC for SNMP
A. No idea. =) Suggestions please

2. Allow SNMP host 150.50.6.225 to access SNMP information from the devices.
A.
        access-list 10 permit 150.50.6.225
        snmp-server community test rw 10

3. Restrict web traffic on the interface E1/0 to only the hours of 8:00AM to
6:00PM, Monday thru Friday. Allow all other IP traffic to pass.
A.

        interface Ethernet1/0
         ip address 10.1.1.4 255.255.255.0
         ip access-group 100 in

        access-list 100 permit tcp any any eq www time-range allow_time
        access-list 100 deny tcp any any eq www
        access-list 100 permit ip any any

        time-range allow_time
         periodic weekdays 8:00 to 18:00

4. Restrict inbound telnet traffic on interface E0 on from 9:00AM to 1:00PM
only on Monday, Wednesday, and Friday
A.
        int Ethernet0
         ip access-group 100 in

        access-list 100 permit tcp any any eq telnet time-range allow_telnet
        access-list 100 deny tcp any any eq telnet
        access-list 100 permit ip any any

        time-range allow_telnet
         periodic Monday Wednesday Friday 9:00 to 13:00

5. Configure DLSW between Token Ring segments on R1 and R8. Use IP address
of the loopback interfaces for the DLSW peer-id with ring-group value of
4000
    Configure router R1 to block users from accessing SAP with a value of
012 <-----***** Not sure how to do this!!
    Adjust the following DLSW Netbios timers to 50,000 seconds on R1 and R8:
        NetBIOS - cache-timeout
        NetBIOS - explorer-timeout
        NetBIOS - retry-interval
   Adjust the value of the LLC2 idle timer on TR segments on R1 and R8 to
value of 60,000 <-----***** Not sure how to do this!!

A.

R1

----
source-bridge ring-group 4000
dlsw local-peer peer-id 200.0.0.1
dlsw remote-peer 0 tcp 200.0.0.8
dlsw timers netbios-cache-timeout 50000
dlsw timers netbios-explorer-timeout 50000
dlsw timers netbios-retry-interval 50000
!
interface Loopback0
 ip address 200.0.0.1 255.255.255.255
!

interface To0 no ip address ring-speed 16 source-bridge 10 1 4000

R8 ---- source-bridge ring-group 4000 dlsw local-peer peer-id 200.0.0.8 dlsw remote-peer 0 tcp 200.0.0.1 dlsw timers netbios-cache-timeout 50000 dlsw timers netbios-explorer-timeout 50000 dlsw timers netbios-retry-interval 50000 ! interface Loopback0 ip address 200.0.0.8 255.255.255.255 ! interface To0 no ip address ring-speed 16 source-bridge 10 1 4000

Any feedback is greatly appreciated.

Thanks

Albert



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