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Running Mac OS X Tiger
book

Running Mac OS X Tiger

by Jason Deraleau, James Duncan Davidson
December 2005
Intermediate to advanced content levelIntermediate to advanced
400 pages
11h 33m
English
O'Reilly Media, Inc.
Content preview from Running Mac OS X Tiger

Routing

To see the routing table used by the system, you can use the Netstat tab of the Network Utility application, click the Display routing table information radio button, and then hit the Netstat button, as shown in Figure 11-7. This outputs the same routing table information as the netstat -r command, shown in Example 11-5.

Example 11-5. The routing table as displayed by netstat -r

$ netstat -r
Routing tables

Internet:
Destination        Gateway            Flags    Refs      Use  Netif Expire
default            192.168.79.1       UGSc       19       13    en0
192.168.79         link#4             UCS         6        0    en0
192.168.79.1       0:0:d1:f0:67:9     UHLW        5        0    en0   1178
192.168.79.9       127.0.0.1          UHS         0        0    lo0
127                127.0.0.1          UCS         0        0    lo0
127.0.0.1          127.0.0.1          UH         13   259841    lo0
169.254            link#4             UCS         0        0    en0

Internet6:
Destination        Gateway            Flags      Netif Expire
::1                link#1             UHL          lo0
fe80::%lo0/64      fe80::1%lo0        Uc           lo0
fe80::1%lo0        link#1             UHL          lo0
ff01::/32          ::1                U            lo0
ff02::/32          ::1                UC           lo0
Using Network Utility to examine routing information

Figure 11-7. Using Network Utility to examine routing information

There are two parts to the routing table: the first is the Internet table for routing packets to IPv4-based networks; the second is the Internet6 table for routing packets to IPv6-based networks. Each part contains a set of entries. Here’s what the first few entries in the Internet table mean:

  • The first line indicates that the default destination for all packets is 192.168.79.1, a router to the Internet. The packets should be sent via the en0 interface. ...

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Publisher Resources

ISBN: 0596009135Catalog PageErrata