Belajar Routing

Awal-awal punya modem masih gak berani pake di kantor, jadi gak bisa berekspresi dweh. Soalnya waktu saya colokin modem dan diconnect, intranet saya langsung nge-blank jadi agak takut kalo sewaktu-waktu ada masalah saya gak bisa langsung tau. Tanya-tanya Pak Simon kali aja ada caranya buat ngakali ini, jadi saya bisa colokin modem, tapi intranet juga masih oke. Ini neh, saya share cara manipulasi network routing tables yang saya dapet dari Pak Simon, kata beliau kalo mau rajin cari di official web nya windows, bisa dapet lebih lengkap:

Ketik di cmd: ROUTE [-f] [-p] [command [destination]
[MASK netmask] [gateway] [METRIC metric] [IF interface]

-f Clears the routing tables of all gateway entries. If this is
used in conjunction with one of the commands, the tables are
cleared prior to running the command.
-p When used with the ADD command, makes a route persistent across
boots of the system. By default, routes are not preserved
when the system is restarted. Ignored for all other commands,
which always affect the appropriate persistent routes. This
option is not supported in Windows 95.
command One of these:
PRINT Prints a route
ADD Adds a route
DELETE Deletes a route
CHANGE Modifies an existing route
destination Specifies the host.
MASK Specifies that the next parameter is the 'netmask' value.
netmask Specifies a subnet mask value for this route entry.
If not specified, it defaults to 255.255.255.255.
gateway Specifies gateway.
interface the interface number for the specified route.
METRIC specifies the metric, ie. cost for the destination.

All symbolic names used for destination are looked up in the network database
file NETWORKS. The symbolic names for gateway are looked up in the host name
database file HOSTS.

If the command is PRINT or DELETE. Destination or gateway can be a wildcard,
(wildcard is specified as a star '*'), or the gateway argument may be omitted.

If Dest contains a * or ?, it is treated as a shell pattern, and only
matching destination routes are printed. The '*' matches any string,
and '?' matches any one char. Examples: 157.*.1, 157.*, 127.*, *224*.
Diagnostic Notes:
Invalid MASK generates an error, that is when (DEST & MASK) != DEST.
Example> route ADD 157.0.0.0 MASK 155.0.0.0 157.55.80.1 IF 1
The route addition failed: The specified mask parameter is invalid.
(Destination & Mask) != Destination.

Examples:

> route PRINT
> route ADD 157.0.0.0 MASK 255.0.0.0 157.55.80.1 METRIC 3 IF 2
destination^ ^mask ^gateway metric^ ^
Interface^
If IF is not given, it tries to find the best interface for a given
gateway.
> route PRINT
> route PRINT 157* .... Only prints those matching 157*
> route CHANGE 157.0.0.0 MASK 255.0.0.0 157.55.80.5 METRIC 2 IF 2

CHANGE is used to modify gateway and/or metric only.
> route PRINT
> route DELETE 157.0.0.0
> route PRINT

USUAL
=====

D:\My_Data\Wink\routing>ipconfig /all

Windows IP Configuration

Host Name . . . . . . . . . . . . : C0460
Primary Dns Suffix . . . . . . . : mjt.app.com
Node Type . . . . . . . . . . . . : Hybrid
IP Routing Enabled. . . . . . . . : No
WINS Proxy Enabled. . . . . . . . : No
DNS Suffix Search List. . . . . . : mjt.app.com
mjt.tjiwi.co.id

Ethernet adapter Local Area Connection:

Connection-specific DNS Suffix . : mjt.tjiwi.co.id
Description . . . . . . . . . . . : Broadcom NetXtreme 57xx Gigabit Cont
roller
Physical Address. . . . . . . . . : 00-18-8B-7D-89-51
Dhcp Enabled. . . . . . . . . . . : No
IP Address. . . . . . . . . . . . : 172.16.128.39
Subnet Mask . . . . . . . . . . . : 255.255.255.0
Default Gateway . . . . . . . . . : 172.16.128.254
DNS Servers . . . . . . . . . . . : 172.16.148.19
172.16.148.18
Primary WINS Server . . . . . . . : 172.16.148.19
Secondary WINS Server . . . . . . : 172.16.148.18

D:\My_Data\Wink\routing>route print
===========================================================================
Interface List
0x1 ........................... MS TCP Loopback interface
0x10003 ...00 18 8b 7d 89 51 ...... Broadcom NetXtreme 57xx Gigabit Controller
===========================================================================
===========================================================================
Active Routes:
Network Destination Netmask Gateway Interface Metric
0.0.0.0 0.0.0.0 172.16.128.254 172.16.128.39 20
127.0.0.0 255.0.0.0 127.0.0.1 127.0.0.1 1
172.16.128.0 255.255.255.0 172.16.128.39 172.16.128.39 20
172.16.128.39 255.255.255.255 127.0.0.1 127.0.0.1 20
172.16.255.255 255.255.255.255 172.16.128.39 172.16.128.39 20
224.0.0.0 240.0.0.0 172.16.128.39 172.16.128.39 20
255.255.255.255 255.255.255.255 172.16.128.39 172.16.128.39 1
Default Gateway: 172.16.128.254
===========================================================================
Persistent Routes:
None

Modem ON
=============
D:\My_Data\Wink\routing>ipconfig /all

Windows IP Configuration

Host Name . . . . . . . . . . . . : C0460
Primary Dns Suffix . . . . . . . : mjt.app.com
Node Type . . . . . . . . . . . . : Hybrid
IP Routing Enabled. . . . . . . . : No
WINS Proxy Enabled. . . . . . . . : No
DNS Suffix Search List. . . . . . : mjt.app.com

Ethernet adapter Local Area Connection:

Connection-specific DNS Suffix . : mjt.tjiwi.co.id
Description . . . . . . . . . . . : Broadcom NetXtreme 57xx Gigabit Cont
roller
Physical Address. . . . . . . . . : 00-18-8B-7D-89-51
Dhcp Enabled. . . . . . . . . . . : No
IP Address. . . . . . . . . . . . : 172.16.128.39
Subnet Mask . . . . . . . . . . . : 255.255.255.0
Default Gateway . . . . . . . . . : 172.16.128.254
DNS Servers . . . . . . . . . . . : 172.16.148.19
172.16.148.18
Primary WINS Server . . . . . . . : 172.16.148.19
Secondary WINS Server . . . . . . : 172.16.148.18

PPP adapter Provider:

Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : WAN (PPP/SLIP) Interface
Physical Address. . . . . . . . . : 00-53-45-00-00-00
Dhcp Enabled. . . . . . . . . . . : No
IP Address. . . . . . . . . . . . : 114.121.39.118
Subnet Mask . . . . . . . . . . . : 255.255.255.255
Default Gateway . . . . . . . . . : 114.121.39.118
DNS Servers . . . . . . . . . . . : 202.3.208.11
202.3.210.11
Primary WINS Server . . . . . . . : 10.11.12.13
Secondary WINS Server . . . . . . : 10.11.12.14
NetBIOS over Tcpip. . . . . . . . : Disabled

D:\My_Data\Wink\routing>route print
===========================================================================
Interface List
0x1 ........................... MS TCP Loopback interface
0x10003 ...00 18 8b 7d 89 51 ...... Broadcom NetXtreme 57xx Gigabit Controller
0x20004 ...00 53 45 00 00 00 ...... WAN (PPP/SLIP) Interface
===========================================================================
===========================================================================
Active Routes:
Network Destination Netmask Gateway Interface Metric
0.0.0.0 0.0.0.0 114.121.39.118 114.121.39.118 1
0.0.0.0 0.0.0.0 172.16.128.254 172.16.128.39 21
114.121.39.118 255.255.255.255 127.0.0.1 127.0.0.1 50
114.255.255.255 255.255.255.255 114.121.39.118 114.121.39.118 50
127.0.0.0 255.0.0.0 127.0.0.1 127.0.0.1 1
172.16.128.0 255.255.255.0 172.16.128.39 172.16.128.39 20
172.16.128.39 255.255.255.255 127.0.0.1 127.0.0.1 20
172.16.255.255 255.255.255.255 172.16.128.39 172.16.128.39 20
224.0.0.0 240.0.0.0 172.16.128.39 172.16.128.39 20
224.0.0.0 240.0.0.0 114.121.39.118 114.121.39.118 1
255.255.255.255 255.255.255.255 114.121.39.118 114.121.39.118 1
255.255.255.255 255.255.255.255 172.16.128.39 172.16.128.39 1
Default Gateway: 114.121.39.118
===========================================================================
Persistent Routes:
None

*** DO ***
route add 172.16.0.0 mask 255.255.0.0 172.16.128.254
*** REMOVE ***
route delete 172.16.0.0

*** RESULT ***

D:\My_Data\Wink\routing>route print
===========================================================================
Interface List
0x1 ........................... MS TCP Loopback interface
0x10003 ...00 18 8b 7d 89 51 ...... Broadcom NetXtreme 57xx Gigabit Controller
0x20004 ...00 53 45 00 00 00 ...... WAN (PPP/SLIP) Interface
===========================================================================
===========================================================================
Active Routes:
Network Destination Netmask Gateway Interface Metric
0.0.0.0 0.0.0.0 114.121.39.118 114.121.39.118 1
0.0.0.0 0.0.0.0 172.16.128.254 172.16.128.39 21
114.121.39.118 255.255.255.255 127.0.0.1 127.0.0.1 50
114.255.255.255 255.255.255.255 114.121.39.118 114.121.39.118 50
127.0.0.0 255.0.0.0 127.0.0.1 127.0.0.1 1
172.16.0.0 255.255.0.0 172.16.128.254 172.16.128.39 1
172.16.128.0 255.255.255.0 172.16.128.39 172.16.128.39 20
172.16.128.39 255.255.255.255 127.0.0.1 127.0.0.1 20
172.16.255.255 255.255.255.255 172.16.128.39 172.16.128.39 20
224.0.0.0 240.0.0.0 172.16.128.39 172.16.128.39 20
224.0.0.0 240.0.0.0 114.121.39.118 114.121.39.118 1
255.255.255.255 255.255.255.255 114.121.39.118 114.121.39.118 1
255.255.255.255 255.255.255.255 172.16.128.39 172.16.128.39 1
Default Gateway: 114.121.39.118
===========================================================================
Persistent Routes:
None