我的板子是tiny6410 3G网卡是huawei e1750设备，联通的资费卡，在板子上能连上网，也能上网，但是ping的时候ping不通我自己的网络的网址，麻烦路过的各位高手帮帮忙，怎么解决，谢谢，板子通过串口的提示如下：
[root@FriendlyARM /]# ifconfig
eth0 Link encap:Ethernet HWaddr 08:90:90:90:90:90
inet addr:172.19.69.111 Bcast:172.19.69.255 Mask:255.255.255.0
UP BROADCAST MULTICAST MTU:1500 Metric:1
RX packets:270 errors:0 dropped:6 overruns:0 frame:0
TX packets:22 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:22310 (21.7 KiB) TX bytes:1683 (1.6 KiB)
Interrupt:108
lo Link encap:Local Loopback
inet addr:127.0.0.1 Mask:255.0.0.0
UP LOOPBACK RUNNING MTU:16436 Metric:1
RX packets:113 errors:0 dropped:0 overruns:0 frame:0
TX packets:113 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:11656 (11.3 KiB) TX bytes:11656 (11.3 KiB)
ppp0 Link encap:Point-to-Point Protocol
inet addr:172.17.29.70 P-t-P:10.64.64.64 Mask:255.255.255.255 （分配的ip地址）
UP POINTOPOINT RUNNING NOARP MULTICAST MTU:1500 Metric:1
RX packets:15 errors:0 dropped:0 overruns:0 frame:0
TX packets:14 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:3
RX bytes:810 (810.0 B) TX bytes:711 (711.0 B)
[root@FriendlyARM /]# ping 172.17.29.70 （ping自己肯定可以ping通的）
PING 172.17.29.70 (172.17.29.70): 56 data bytes
64 bytes from 172.17.29.70: seq=0 ttl=64 time=1.111 ms
64 bytes from 172.17.29.70: seq=1 ttl=64 time=0.698 ms
64 bytes from 172.17.29.70: seq=2 ttl=64 time=0.547 ms
^C
--- 172.17.29.70 ping statistics ---
3 packets transmitted, 3 packets received, 0% packet loss
round-trip min/avg/max = 0.547/0.785/1.111 ms
[root@FriendlyARM /]# ping 172.17.29.1 （这里ping不通了）
PING 172.17.29.1 (172.17.29.1): 56 data bytes
[root@FriendlyARM /]# ping
www.baidu.com （ping 百度也可以）
PING
www.baidu.com (61.135.169.125): 56 data bytes
64 bytes from 61.135.169.125: seq=0 ttl=51 time=296.655 ms
64 bytes from 61.135.169.125: seq=1 ttl=51 time=280.280 ms
64 bytes from 61.135.169.125: seq=2 ttl=51 time=270.280 ms
64 bytes from 61.135.169.125: seq=3 ttl=51 time=300.290 ms
64 bytes from 61.135.169.125: seq=4 ttl=51 time=290.271 ms
^C
--- 172.17.29.1 ping statistics ---
47 packets transmitted, 0 packets received, 100% packet loss
[root@FriendlyARM /]# ping 172.19.69.110 （ping我自己的网络也不可以）
PING 172.19.69.110 (172.19.69.110): 56 data bytes
^C
--- 172.19.69.110 ping statistics ---
4 packets transmitted, 0 packets received, 100% packet loss
[root@FriendlyARM /]# ftp 172.19.69.110 （登陆我自己的服务器显示没有路由）
ftp: connect: No route to host
ftp> !
