mac系统，ping得通，但上不了网

系统是mac 10.8.5，能ping通，但是上不了网。
我在学校里，有ipv6，试过win系统可以用了。采用的是宽带连接的方式。
请问有谁知道怎么解决吗？


以下是ifconfig得到的信息：
lo0: flags=8049<UP,LOOPBACK,RUNNING,MULTICAST> mtu 16384
        options=3<RXCSUM,TXCSUM>
        inet6 fe80::1%lo0 prefixlen 64 scopeid 0x1
        inet 127.0.0.1 netmask 0xff000000
        inet6 ::1 prefixlen 128
gif0: flags=8010<POINTOPOINT,MULTICAST> mtu 1280
stf0: flags=0<> mtu 1280
en0: flags=8863<UP,BROADCAST,SMART,RUNNING,SIMPLEX,MULTICAST> mtu 1500
        options=2b<RXCSUM,TXCSUM,VLAN_HWTAGGING,TSO4>
        ether c8:2a:14:1a:47:07
        inet6 fe80::ca2a:14ff:fe1a:4707%en0 prefixlen 64 scopeid 0x4
        inet 169.254.132.58 netmask 0xffff0000 broadcast 169.254.255.255
        media: autoselect (100baseTX <full-duplex>)
        status: active
en1: flags=8863<UP,BROADCAST,SMART,RUNNING,SIMPLEX,MULTICAST> mtu 1500
        ether e0:f8:47:38:6b:5a
        inet6 fe80::e2f8:47ff:fe38:6b5a%en1 prefixlen 64 scopeid 0x5
        inet 192.168.199.190 netmask 0xffffff00 broadcast 192.168.199.255
        inet6 fc00:101:101::e2f8:47ff:fe38:6b5a prefixlen 64 autoconf
        inet6 fc00:101:101::a5bf:f200:a42e:ac00 prefixlen 64 autoconf temporary
        media: autoselect
        status: active
fw0: flags=8863<UP,BROADCAST,SMART,RUNNING,SIMPLEX,MULTICAST> mtu 4078
        lladdr 70:cd:60:ff:fe:ea:fe:88
        media: autoselect <full-duplex>
        status: inactive
p2p0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> mtu 2304
        ether 02:f8:47:38:6b:5a
        media: autoselect
        status: inactive
ppp0: flags=8051<UP,POINTOPOINT,RUNNING,MULTICAST> mtu 1492
        inet 110.65.82.150 --> 110.65.82.1 netmask 0xff000000
        inet6 fe80::ca2a:14ff:fe1a:4707%ppp0 prefixlen 64 scopeid 0x8