菜鸟求助！！！

目前两条线路，要求是两条线路同时使用，负载均衡。
现具体情况是路由器一的interface Serial0/1接口与路由器二的interface Serial0/0接口相连，使用线路1；路由器一的interface Ethernet1/0接口与路由器二的interface Ethernet1/0接口相连，使用线路2。

/*****************路由器一的配置**********************/
zjrly#show run
Building configuration...

Current configuration : 1200 bytes
!
version 12.2
service timestamps debug uptime
service timestamps log uptime
no service password-encryption
!
hostname zjrly
!
enable secret 5 $1$/Yt8$sF/0hLg/r9levAD41RGrL
!
ip subnet-zero
!
!
!
!
!
/**********************本地局域网接口********************/
interface FastEthernet0/0
description to_lan
ip address 10.174.124.254 255.255.255.0
duplex auto
speed auto
/*********************上连集团公司接口***************/
interface Serial0/0
description to_teli
ip address 10.175.110.134 255.255.255.252
no fair-queue
/*****************本地服务器接口*********************/
interface FastEthernet0/1
description to_fw
ip address 10.175.110.137 255.255.255.252
duplex auto
speed auto
/**************线路1到厂区接口********************/
interface Serial0/1
description to-changqu
ip address 10.175.110.141 255.255.255.252
no fair-queue
/***************线路2到厂区接口****************/
interface Ethernet1/0
ip address 172.0.0.1 255.255.255.252
full-duplex
!
router ospf 100
log-adjacency-changes
redistribute connected subnets
redistribute static subnets
network 10.175.110.140 0.0.0.3 area 0
network 172.0.0.0 0.255.255.255 area 0
default-information originate
!
ip classless
ip route 0.0.0.0 0.0.0.0 10.175.110.138
ip route 10.0.0.0 255.0.0.0 10.175.110.133
ip http server
ip pim bidir-enable
!
!
snmp-server community 2005zjup RO
snmp-server host 10.170.8.3 public
!
line con 0
line aux 0
line vty 0 4
password ######
login
!
!
End

/***************路由器一的版本信息*************************************/
zjrly#show version
Cisco Internetwork Operating System Software
IOS (tm) C2600 Software (C2600-I-M), Version 12.2(8)T5,  RELEASE SOFTWARE (fc1)
TAC Support: http://www.cisco.com/tac
Copyright (c) 1986-2002 by cisco Systems, Inc.
Compiled Fri 21-Jun-02 08:50 by ccai
Image text-base: 0x80008074, data-base: 0x80A2BD40

ROM: System Bootstrap, Version 12.2(7r) [cmong 7r], RELEASE SOFTWARE (fc1)

zjrly uptime is 4 weeks, 4 days, 17 hours, 18 minutes
System returned to ROM by bus error at PC 0x800281F4, address 0x40800014
System image file is "flash:C2600-i-mz.122-8.t5.bin"

cisco 2611XM (MPC860P) processor (revision 0x100) with 60416K/5120K bytes of mem
ory.
Processor board ID FHK0931F0Q2 (3529235476)
M860 processor: part number 5, mask 1
Bridging software.
X.25 software, Version 3.0.0.
1 Ethernet/IEEE 802.3 interface(s)
2 FastEthernet/IEEE 802.3 interface(s)
2 Serial network interface(s)
32K bytes of non-volatile configuration memory.
32768K bytes of processor board System flash (Read/Write)

Configuration register is 0x101

/*********************路由器二的配置******************************************/
zjrly#show run
Building configuration...

Current configuration : 973 bytes
!
version 12.2
service timestamps debug uptime
service timestamps log uptime
no service password-encryption
!
hostname zjrly
!
logging buffered 4096 informational
enable secret 5 $1$VXmZ$1vqMyhdkTEwL/q1PYX6XQ1
enable password password
!
ip subnet-zero
!
!
!
!
!
!
interface FastEthernet0/0
no ip address
duplex auto
speed auto
/*********************线路1接口*************/
interface Serial0/0
description to_taihua
ip address 10.175.110.142 255.255.255.252
no fair-queue
/*********************厂区局域网接口********************/
interface FastEthernet0/1
description to_lan
ip address 10.174.125.254 255.255.255.0
duplex auto
speed auto
/**************** 线路2接口************************/
interface Ethernet1/0
ip address 172.0.0.2 255.255.255.252
full-duplex
!
router ospf 100
log-adjacency-changes
network 10.174.125.0 0.0.0.255 area 0
network 10.175.110.140 0.0.0.3 area 0
network 172.0.0.0 0.0.0.3 area 0
!
ip classless
no ip http server
ip pim bidir-enable
!
!
snmp-server community 2005zjup RO
snmp-server host 10.170.8.3 public
!
line con 0
line aux 0
line vty 0 4
password ########
login
!
!
End

/************路由器二的版本信息*****************************/

zjrly#show version
Cisco Internetwork Operating System Software
IOS (tm) C2600 Software (C2600-I-M), Version 12.2(8)T5,  RELEASE SOFTWARE (fc1)
TAC Support: http://www.cisco.com/tac
Copyright (c) 1986-2002 by cisco Systems, Inc.
Compiled Fri 21-Jun-02 08:50 by ccai
Image text-base: 0x80008074, data-base: 0x80A2BD40

ROM: System Bootstrap, Version 12.2(7r) [cmong 7r], RELEASE SOFTWARE (fc1)

zjrly uptime is 2 weeks, 4 days, 18 hours, 35 minutes
System returned to ROM by bus error at PC 0x80024C78, address 0x40800014
System image file is "flash:C2600-i-mz.122-8.t5.bin"

cisco 2611XM (MPC860P) processor (revision 0x100) with 60416K/5120K bytes of mem
ory.
Processor board ID FHK0931F0Q5 (2799992050)
M860 processor: part number 5, mask 1
Bridging software.
X.25 software, Version 3.0.0.
1 Ethernet/IEEE 802.3 interface(s)
2 FastEthernet/IEEE 802.3 interface(s)
1 Serial network interface(s)
32K bytes of non-volatile configuration memory.
16384K bytes of processor board System flash (Read/Write)

Configuration register is 0x101