[疑问] redhat linux5拨号上网求助

我按照书上的步骤来做的，下面是我做的命令以及相应的结果。请高手指点下。我在Windows下能拨号上网啊。在redhat linux5下不行啊。我的QQ：664801683，在线等。
第一步：[root@chen ~]# ifconfig
eth0 Link encap:Ethernet HWaddr 00:1E:C9:05:34:8B
inet addr:192.168.1.98 Bcast:192.168.1.98 Mask:255.255.255.0
inet6 addr: fe80::21e:c9ff:fe05:348b/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:113115 error s:0 dropped:0 overruns:0 frame:0
TX packets:261 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:27787334 (26.5 MiB) TX bytes:30516 (29.8 KiB)

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:16436 Metric:1
RX packets:1507 errors:0 dropped:0 overruns:0 frame:0
TX packets:1507 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:2276172 (2.1 MiB) TX bytes:2276172 (2.1 MiB)

peth0 Link encap:Ethernet HWaddr FE:FF:FF:FF:FF:FF
inet6 addr: fe80::fcff:ffff:feff:ffff/64 Scope:Link
UP BROADCAST RUNNING NOARP MTU:1500 Metric:1
RX packets:113154 errors:0 dropped:0 overruns:0 frame:0
TX packets:261 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:28240509 (26.9 MiB) TX bytes:32070 (31.3 KiB)
Interrupt:17

vif0.0 Link encap:Ethernet HWaddr FE:FF:FF:FF:FF:FF
inet6 addr: fe80::fcff:ffff:feff:ffff/64 Scope:Link
UP BROADCAST RUNNING NOARP MTU:1500 Metric:1
RX packets:261 errors:0 dropped:0 overruns:0 frame:0
TX packets:113173 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:30516 (29.8 KiB) TX bytes:27804924 (26.5 MiB)

virbr0 Link encap:Ethernet HWaddr 00:00:00:00:00:00
inet addr:192.168.122.1 Bcast:192.168.122.255 Mask:255.255.255.0
inet6 addr: fe80::200:ff:fe00:0/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:39 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:0 (0.0 b) TX bytes:7596 (7.4 KiB)

xenbr0 Link encap:Ethernet HWaddr FE:FF:FF:FF:FF:FF
inet6 addr: fe80::200:ff:fe00:0/64 Scope:Link
UP BROADCAST RUNNING NOARP MTU:1500 Metric:1
RX packets:113185 errors:0 dropped:0 overruns:0 frame:0
TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:26224152 (25.0 MiB) TX bytes:0 (0.0 b)

第二步：

[root@chen ~]# ping 192.168.1.94
PING 192.168.1.94 (192.168.1.94) 56(84) bytes of data.

--- 192.168.1.94 ping statistics ---
255 packets transmitted, 0 received, 100% packet loss, time 254072ms

第三步：
[root@chen ~]# route
Kernel IP routing table
Destination Gateway Genmask Flags Metric Ref Use Iface
192.168.1.0 * 255.255.255.0 U 0 0 0 eth0
192.168.122.0 * 255.255.255.0 U 0 0 0 virbr0
169.254.0.0 * 255.255.0.0 U 0 0 0 eth0

第四步：
[root@chen ~]# ping 192.168.1.1


PING 192.168.1.1 (192.168.1.1) 56(84) bytes of data.
64 bytes from 192.168.1.1: icmp_seq=1 ttl=128 time=0.374 ms
64 bytes from 192.168.1.1: icmp_seq=2 ttl=128 time=0.392 ms
64 bytes from 192.168.1.1: icmp_seq=3 ttl=128 time=0.384 ms
64 bytes from 192.168.1.1: icmp_seq=4 ttl=128 time=0.379 ms
64 bytes from 192.168.1.1: icmp_seq=5 ttl=128 time=0.375 ms
64 bytes from 192.168.1.1: icmp_seq=6 ttl=128 time=0.365 ms
64 bytes from 192.168.1.1: icmp_seq=7 ttl=128 time=0.392 ms

--- 192.168.1.1 ping statistics ---
7 packets transmitted, 7 received, 0% packet loss, time 6000ms
rtt min/avg/max/mdev = 0.365/0.380/0.392/0.013 ms