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About DtD interface ip address.

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TA5SMS
About DtD interface ip address.

Hello Everyone

Why DtD interface ip addresses end with .0. These interfaces are /8 and at first glance I thought it was subnet ID. But after wireshark listening I saw this DtD ip address in the source ip address. Why do DtD interfaces end with the last two octets 0.0?

 

B.R.

nc8q
nc8q's picture
DtD interfaces end with the last two octets 0.0?
root@NC8Q-Services:~# ifconfig|grep "0\.0"
          inet addr:10.5.236.70  Bcast:10.255.255.255  Mask:255.0.0.0
          inet addr:127.0.0.1  Mask:255.0.0.0
          RX bytes:0 (0.0 B)  TX bytes:0 (0.0 B)
          RX bytes:0 (0.0 B)  TX bytes:15968756 (15.2 MiB)
root@NC8Q-Services:~# 
 

DtD interfaces end with the last two octets 0.0?


root@NC8Q-Services:~# ifconfig
br-dtdlink Link encap:Ethernet  HWaddr 02:18:17:02:A6:60  
          inet addr:10.5.236.70  Bcast:10.255.255.255  Mask:255.0.0.0
          inet6 addr: fe80::18:17ff:fe02:a660/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:1013601 errors:0 dropped:0 overruns:0 frame:0
          TX packets:337311 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000 
          RX bytes:356213632 (339.7 MiB)  TX bytes:104315068 (99.4 MiB)

br-lan    Link encap:Ethernet  HWaddr 02:2C:90:E0:06:6A  
          inet addr:10.78.196.97  Bcast:10.78.196.111  Mask:255.255.255.240
          inet6 addr: fe80::2c:90ff:fee0:66a/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:742785 errors:0 dropped:0 overruns:0 frame:0
          TX packets:795128 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000 
          RX bytes:307363263 (293.1 MiB)  TX bytes:304442181 (290.3 MiB)

br-wan    Link encap:Ethernet  HWaddr 02:0F:7D:C4:19:48  
          inet addr:192.168.8.99  Bcast:192.168.8.255  Mask:255.255.255.0
          inet6 addr: fe80::f:7dff:fec4:1948/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:571386 errors:0 dropped:0 overruns:0 frame:0
          TX packets:397789 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000 
          RX bytes:266511474 (254.1 MiB)  TX bytes:256369207 (244.4 MiB)

br0       Link encap:Ethernet  HWaddr 94:83:C4:07:B7:F2  
          inet6 addr: fe80::9683:c4ff:fe07:b7f2/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:2304567 errors:0 dropped:0 overruns:0 frame:0
          TX packets:1501173 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000 
          RX bytes:928419001 (885.4 MiB)  TX bytes:643541375 (613.7 MiB)

br0.1     Link encap:Ethernet  HWaddr 94:83:C4:07:B7:F2  
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:719530 errors:0 dropped:0 overruns:0 frame:0
          TX packets:766064 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000 
          RX bytes:305690392 (291.5 MiB)  TX bytes:282856134 (269.7 MiB)

br0.2     Link encap:Ethernet  HWaddr 94:83:C4:07:B7:F2  
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:1013629 errors:0 dropped:0 overruns:0 frame:0
          TX packets:337311 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000 
          RX bytes:356214858 (339.7 MiB)  TX bytes:104315068 (99.4 MiB)

br0.4     Link encap:Ethernet  HWaddr 94:83:C4:07:B7:F2  
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:571405 errors:0 dropped:0 overruns:0 frame:0
          TX packets:397789 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000 
          RX bytes:266512745 (254.1 MiB)  TX bytes:256369207 (244.4 MiB)

eth0      Link encap:Ethernet  HWaddr 94:83:C4:07:B7:F2  
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:1737826 errors:0 dropped:4664 overruns:0 frame:0
          TX packets:1103375 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000 
          RX bytes:694308819 (662.1 MiB)  TX bytes:391584702 (373.4 MiB)
          Interrupt:5 

eth1      Link encap:Ethernet  HWaddr 94:83:C4:07:B7:F1  
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:571405 errors:0 dropped:0 overruns:13 frame:0
          TX packets:397780 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000 
          RX bytes:274512415 (261.7 MiB)  TX bytes:256368241 (244.4 MiB)
          Interrupt:4 

lo        Link encap:Local Loopback  
          inet addr:127.0.0.1  Mask:255.0.0.0
          inet6 addr: ::1/128 Scope:Host
          UP LOOPBACK RUNNING  MTU:65536  Metric:1
          RX packets:56062 errors:0 dropped:0 overruns:0 frame:0
          TX packets:56062 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000 
          RX bytes:49689733 (47.3 MiB)  TX bytes:49689733 (47.3 MiB)

wgc0      Link encap:UNSPEC  HWaddr 00-00-00-00-00-00-00-00-00-00-00-00-00-00-00-00  
          inet addr:172.31.242.220  P-t-P:172.31.242.220  Mask:255.255.255.255
          inet6 addr: fe80::200:acff:fe1f:f2dc/64 Scope:Link
          UP POINTOPOINT RUNNING NOARP  MTU:1420  Metric:1
          RX packets:0 errors:0 dropped:0 overruns:0 frame:0
          TX packets:0 errors:45003 dropped:537 overruns:0 carrier:0
          collisions:0 txqueuelen:1000 
          RX bytes:0 (0.0 B)  TX bytes:0 (0.0 B)

wlan0     Link encap:Ethernet  HWaddr 94:83:C4:07:B7:F2  
          inet addr:10.4.236.70  Bcast:255.255.255.255  Mask:255.255.255.255
          inet6 addr: fe80::9683:c4ff:fe07:b7f2/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:0 errors:0 dropped:0 overruns:0 frame:0
          TX packets:42291 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000 
          RX bytes:0 (0.0 B)  TX bytes:15949556 (15.2 MiB)

wlan1     Link encap:Ethernet  HWaddr 94:83:C4:07:B7:F1  
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:2589254 errors:0 dropped:0 overruns:0 frame:0
          TX packets:2607965 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000 
          RX bytes:2968025986 (2.7 GiB)  TX bytes:3062109035 (2.8 GiB)

root@NC8Q-Services:~# 
 

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