IP Forwarding
Outline
This challenge involves the configuration of the IP forward protocol. The objectives of this challenge are to:
Commands
> en
(config)# int e0
(config-if)# ip address 199.68.92.6 255.255.254.0
(config-if)# no shutdown
(config-if)# exit
(config)# no ip forward-protocol udp syslog
(config)# no ip forward-protocol udp tacacs
(config)# no ip forward-protocol udp ntp
Example
> en
(config)# int e0
(config-if)# ip address 199.68.92.6 255.255.254.0
(config-if)# no shutdown
(config-if)# exit
(config)# no ip forward-protocol ?
nd
Sun's Network Disk protocol
sdns
Network Security Protocol
spanning-tree
Use transparent bridging to flood UDP broadcasts
turbo-flood
Fast flooding of UDP broadcasts
udp
Packets to a specific UDP port
(config)# no ip forward-protocol udp ?
<0-65535> Port number
biff
Biff (mail notification, comsat, 512)
bootpc
Bootstrap Protocol (BOOTP) client (68)
bootps
Bootstrap Protocol (BOOTP) server (67)
discard
Discard (9)
dnsix
DNSIX security protocol auditing (195)
domain
Domain Name Service (DNS, 53)
echo
Echo (7)
isakmp
Internet Security Association and Key Management Protocol (500)
mobile-ip
Mobile IP registration (434)
nameserver
IEN116 name service (obsolete, 42)
netbios-dgm
NetBios datagram service (138)
netbios-ns
NetBios name service (137)
netbios-ss
NetBios session service (139)
ntp
Network Time Protocol (123)
pim-auto-rp
PIM Auto-RP (496)
rip
Routing Information Protocol (router, in.routed, 520)
snmp
Simple Network Management Protocol (161)
snmptrap
SNMP Traps (162)
sunrpc
Sun Remote Procedure Call (111)
syslog
System Logger (514)
tacacs
TAC Access Control System (49)
talk
Talk (517)
tftp
Trivial File Transfer Protocol (69)
time
Time (37)
who
Who service (rwho, 513)
xdmcp
X Display Manager Control Protocol (177)
(config)# no ip forward-protocol udp syslog
(config)# no ip forward-protocol udp tacacs
(config)# no ip forward-protocol udp ntp