My mac routing table usually is very simple.
I know it's based on bsd , but what's it doing or trying to do.
My routing table is usually very simple
however, the second one, default was point to link5 ?
Is this normal, or is this IPV6 craziness at work?
Can somehelp me understand what OSX/BSD is doing?
nternet:
Destination Gateway Flags Refs Use Netif Expire
default 192.168.1.254 UGSc 22 0 en1
127 127.0.0.1 UCS 0 0 lo0
127.0.0.1 127.0.0.1 UH 4 44102 lo0
169.254 link#5 UCS 0 0 en1
192.168.1 link#5 UCS 6 0 en1
192.168.1.1 0:18:39:6d:89:c5 UHLWIi 0 0 en1 739
192.168.1.189 50:ea:d6:86:26:91 UHLWIi 0 0 en1 798
192.168.1.194 127.0.0.1 UHS 0 0 lo0
192.168.1.203 5c:95:ae:dd:34:8d UHLWIi 0 0 en1 316
192.168.1.253 a:76:ff:b5:51:79 UHLWIi 0 0 en1 911
192.168.1.254 8:76:ff:b5:51:79 UHLWIi 32 204 en1 1117
192.168.1.255 ff:ff:ff:ff:ff:ff UHLWbI 0 7 en1
Internet6:
Destination Gateway Flags Netif Expire
::1 link#1 UHL lo0
fe80::%lo0/64 fe80::1%lo0 UcI lo0
fe80::1%lo0 link#1 UHLI lo0
fe80::%en1/64 link#5 UCI en1
fe80::21b:63ff:fec7:c486%en1 0:1b:63:c7:c4:86 UHLI lo0
fe80::223:12ff:fe01:d7fe%en1 0:23:12:1:d7:fe UHLWIi en1
ff01::%lo0/32 fe80::1%lo0 UmCI lo0
ff01::%en1/32 link#5 UmCI en1
ff02::%lo0/32 fe80::1%lo0 UmCI lo0
ff02::%en1/32 link#5 UmCI en1
-----------------------------------
Bizzare routing table here
Internet:
Destination Gateway Flags Refs Use Netif Expire
default link#5 UCS 113 0 en1
17.72.255.12 0:50:7f:5e:92:e2 UHLWIi 2 7 en1 1156
64.4.23.141 0:50:7f:5e:92:e2 UHLWIi 0 3 en1 1181
64.4.23.143 0:50:7f:5e:92:e2 UHLWIi 0 1 en1 1189
64.4.23.147 0:50:7f:5e:92:e2 UHLWIi 0 1 en1 1183
64.4.23.149 link#5 UHLWIi 0 1 en1
64.4.23.150 0:50:7f:5e:92:e2 UHLWIi 0 24 en1 1175
64.4.23.151 link#5 UHLWIi 0 1 en1
64.4.23.153 link#5 UHLWIi 0 1 en1
64.4.23.155 link#5 UHLWIi 0 1 en1
64.4.23.157 0:50:7f:5e:92:e2 UHLWIi 0 3 en1 1181
64.4.23.165 link#5 UHLWIi 0 2 en1
64.4.23.166 link#5 UHLWIi 0 1 en1
65.55.223.15 0:50:7f:5e:92:e2 UHLWIi 3 21 en1 1189
65.55.223.16 0:50:7f:5e:92:e2 UHLWIi 0 1 en1 1181
65.55.223.17 0:50:7f:5e:92:e2 UHLWIi 0 2 en1 1199
65.55.223.20 link#5 UHLWIi 0 1 en1
65.55.223.23 0:50:7f:5e:92:e2 UHLWIi 0 1 en1 1199
65.55.223.31 link#5 UHLWIi 0 1 en1
65.55.223.32 link#5 UHLWIi 0 1 en1
65.55.223.37 0:50:7f:5e:92:e2 UHLWIi 3 21 en1 1189
65.55.223.38 link#5 UHLWIi 0 1 en1
69.163.252.33 0:50:7f:5e:92:e2 UHLWIi 1 9 en1 1181
77.67.32.254 0:50:7f:5e:92:e2 UHLWIi 0 1 en1 1164
111.221.74.13 0:50:7f:5e:92:e2 UHLWIi 0 24 en1 1183
111.221.74.15 link#5 UHLWIi 0 1 en1
111.221.74.16 0:50:7f:5e:92:e2 UHLWIi 0 1 en1 1183
111.221.74.17 0:50:7f:5e:92:e2 UHLWIi 3 23 en1 1172
111.221.74.21 0:50:7f:5e:92:e2 UHLWIi 0 1 en1 1181
111.221.74.23 0:50:7f:5e:92:e2 UHLWIi 0 2 en1 1172
111.221.74.24 0:50:7f:5e:92:e2 UHLWIi 0 2 en1 1181
111.221.74.26 0:50:7f:5e:92:e2 UHLWIi 0 1 en1 1199
111.221.74.29 0:50:7f:5e:92:e2 UHLWIi 0 2 en1 1181
111.221.74.31 link#5 UHLWIi 0 1 en1
111.221.74.37 0:50:7f:5e:92:e2 UHLWIi 0 1 en1 1190
111.221.74.38 0:50:7f:5e:92:e2 UHLWIi 0 1 en1 1199
111.221.77.141 0:50:7f:5e:92:e2 UHLWIi 0 3 en1 1199
111.221.77.144 link#5 UHLWIi 0 1 en1
111.221.77.145 0:50:7f:5e:92:e2 UHLWIi 0 1 en1 1190
111.221.77.149 0:50:7f:5e:92:e2 UHLWIi 0 1 en1 1183
111.221.77.154 0:50:7f:5e:92:e2 UHLWIi 0 1 en1 1181
111.221.77.156 0:50:7f:5e:92:e2 UHLWIi 0 1 en1 1190
111.221.77.157 0:50:7f:5e:92:e2 UHLWIi 0 1 en1 1183
111.221.77.162 link#5 UHLWIi 0 1 en1
111.221.77.165 link#5 UHLWIi 0 1 en1
127 127.0.0.1 UCS 0 0 lo0
127.0.0.1 127.0.0.1 UH 4 40073 lo0
157.55.56.140 0:50:7f:5e:92:e2 UHLWIi 0 1 en1 1199
157.55.56.141 0:50:7f:5e:92:e2 UHLWIi 0 1 en1 1181
157.55.56.143 link#5 UHLWIi 0 1 en1
157.55.56.147 0:50:7f:5e:92:e2 UHLWIi 0 1 en1 1183
157.55.56.148 0:50:7f:5e:92:e2 UHLWIi 0 1 en1 1183
157.55.56.149 0:50:7f:5e:92:e2 UHLWIi 0 1 en1 1189
157.55.56.150 link#5 UHLWIi 0 1 en1
157.55.56.157 0:50:7f:5e:92:e2 UHLWIi 0 1 en1 1172
157.55.56.158 0:50:7f:5e:92:e2 UHLWIi 0 1 en1 1175
157.55.130.143 link#5 UHLWIi 0 1 en1
157.55.130.144 link#5 UHLWIi 0 1 en1
157.55.130.145 0:50:7f:5e:92:e2 UHLWIi 0 24 en1 1181
157.55.130.152 0:50:7f:5e:92:e2 UHLWIi 0 2 en1 1199
157.55.130.153 0:50:7f:5e:92:e2 UHLWIi 0 1 en1 1172
157.55.130.155 0:50:7f:5e:92:e2 UHLWIi 0 2 en1 1189
157.55.130.156 0:50:7f:5e:92:e2 UHLWIi 0 1 en1 1186
157.55.130.157 0:50:7f:5e:92:e2 UHLWIi 0 1 en1 1189
157.55.130.158 0:50:7f:5e:92:e2 UHLWIi 0 3 en1 1172
157.55.130.160 0:50:7f:5e:92:e2 UHLWIi 0 1 en1 1189
157.55.130.162 0:50:7f:5e:92:e2 UHLWIi 3 21 en1 1193
157.55.130.166 link#5 UHLWIi 0 1 en1
157.55.235.141 0:50:7f:5e:92:e2 UHLWIi 0 1 en1 1193
157.55.235.142 link#5 UHLWIi 1 1 en1
157.55.235.144 0:50:7f:5e:92:e2 UHLWIi 0 2 en1 1172
157.55.235.145 0:50:7f:5e:92:e2 UHLWIi 0 2 en1 1172
157.55.235.149 0:50:7f:5e:92:e2 UHLWIi 0 1 en1 1181
157.55.235.151 link#5 UHRLWIi 0 36 en1
157.55.235.152 0:50:7f:5e:92:e2 UHLWIi 3 21 en1 1189
157.55.235.153 0:50:7f:5e:92:e2 UHLWIi 0 1 en1 1178
157.55.235.156 link#5 UHLWIi 0 2 en1
157.55.235.157 0:50:7f:5e:92:e2 UHLWIi 0 1 en1 1181
157.55.235.158 link#5 UHLWIi 0 1 en1
157.55.235.159 0:50:7f:5e:92:e2 UHLWIi 0 1 en1 1181
157.55.235.162 0:50:7f:5e:92:e2 UHLWIi 0 1 en1 1183
157.55.235.166 0:50:7f:5e:92:e2 UHLWIi 0 25 en1 1181
157.56.52.14 0:50:7f:5e:92:e2 UHLWIi 0 1 en1 1181
157.56.52.15 0:50:7f:5e:92:e2 UHLWIi 0 2 en1 1183
157.56.52.16 link#5 UHLWIi 0 1 en1
157.56.52.17 0:50:7f:5e:92:e2 UHLWIi 3 14 en1 1199
157.56.52.19 link#5 UHLWIi 0 1 en1
157.56.52.20 0:50:7f:5e:92:e2 UHLWIi 3 17 en1 1199
157.56.52.22 0:50:7f:5e:92:e2 UHLWIi 0 24 en1 1181
157.56.52.25 link#5 UHLWIi 0 1 en1
157.56.52.28 link#5 UHLWIi 0 1 en1
157.56.52.29 link#5 UHLWIi 0 1 en1
157.56.52.31 link#5 UHLWIi 0 1 en1
157.56.52.33 0:50:7f:5e:92:e2 UHLWIi 0 1 en1 1189
169.254 link#5 UC 1 0 en1
169.254.174.250 127.0.0.1 UHS 1 0 lo0
169.254.255.255 ff:ff:ff:ff:ff:ff UHLWb 0 2 en1
193.88.6.19 link#5 UHLWIi 0 1 en1
194.165.188.82 0:50:7f:5e:92:e2 UHLWIi 0 1 en1 1166
195.46.253.211 link#5 UHLWIi 0 1 en1
204.9.163.143 0:50:7f:5e:92:e2 UHLWIi 0 1 en1 1178
213.199.179.141 0:50:7f:5e:92:e2 UHLWIi 0 2 en1 1172
213.199.179.142 0:50:7f:5e:92:e2 UHLWIi 0 1 en1 1165
213.199.179.143 0:50:7f:5e:92:e2 UHLWIi 0 1 en1 1166
213.199.179.146 0:50:7f:5e:92:e2 UHLWIi 0 1 en1 1172
213.199.179.147 0:50:7f:5e:92:e2 UHLWIi 0 2 en1 1164
213.199.179.148 0:50:7f:5e:92:e2 UHLWIi 0 1 en1 1165
213.199.179.149 0:50:7f:5e:92:e2 UHLWIi 0 1 en1 1172
213.199.179.150 0:50:7f:5e:92:e2 UHLWIi 0 1 en1 1165
213.199.179.151 0:50:7f:5e:92:e2 UHLWIi 0 1 en1 1164
213.199.179.153 0:50:7f:5e:92:e2 UHLWIi 0 1 en1 1166
213.199.179.157 0:50:7f:5e:92:e2 UHLWIi 0 2 en1 1167
213.199.179.160 0:50:7f:5e:92:e2 UHLWIi 0 1 en1 1165
213.199.179.161 0:50:7f:5e:92:e2 UHLWIi 0 1 en1 1172
213.199.179.162 0:50:7f:5e:92:e2 UHLWIi 0 2 en1 1163
213.199.179.165 0:50:7f:5e:92:e2 UHLWIi 0 1 en1 1164
213.199.179.166 0:50:7f:5e:92:e2 UHLWIi 0 3 en1 1164
224.0.0.251 1:0:5e:0:0:fc UHmLWI 0 0 en1
255.255.255.255 ff:ff:ff:ff:ff:ff UHLWbI 0 2 en1
Internet6:
Destination Gateway Flags Netif Expire
::1 link#1 UHL lo0
fe80::%lo0/64 fe80::1%lo0 UcI lo0
fe80::1%lo0 link#1 UHLI lo0
fe80::%en1/64 link#5 UCI en1
fe80::21b:63ff:fec7:c486%en1 0:1b:63:c7:c4:87 UHLI lo0
fe80::223:12ff:fe01:d7fe%en1 0:23:12:1:d7:ff UHLWIi en1
ff01::%lo0/32 fe80::1%lo0 UmCI lo0
ff01::%en1/32 link#5 UmCI en1
ff02::%lo0/32 fe80::1%lo0 UmCI lo0
ff02::%en1/32 link#5 UmCI en1
I think you're looking in the wrong place. Check your basic network settings in the Network preferences pane in System Preferences before you go looking at the raw routing tables. I'm pretty sure what you'll see is that your en1 port has a self-assigned IP address of 169.254.174.250, and no router address. The UI doesn't always explicitly indicate that it's in self-assigned mode, but the 169.254 prefix on the address is a dead giveaway. What this means is that DHCP has failed, your server wasn't assigned a proper IP address so it made one up (self-assigned), and since it doesn't have a way to make up a router address, it's in link-local mode with no router and no idea how to get off the local network.
The reason the routing table looks so weird is that, since it has no router configured, it tries to reach everything on the local network (i.e. it sends out ARP requests for every IP address it tries to reach). Something on the local network (something with the MAC address 0:50:7f:5e:92:e2) is replying to these ARP requests; it's probably a router doing some variety of ARP proxying. Because
netstat -ron OS X displays the ARP table as part of the routing table, you're seeing ARP entries for every IP address your server has tried to reach.First solution: find out what's wrong with DHCP and fix it.
Second solution: what's a server doing on DHCP anyway? Servers should almost always be statically configured, so assign it a static address (in the Network preferences pane, not with ifconfig).