TP340G+硬改后刷DD-WRT成功，如何才能通过TTL线进入redboot?

micr***

TP340G+路由器，硬改8M闪存，32M内存后，用编程器写入本站提供的340 DD-WRT编程器固件能正常启动。
该固件使用redboot引导
通过TTL连接路由器，在电脑端口和SecureCRT中同时设置115200速率正常显示和输入。但不知为何怎样也进不了redboot的控制台，设备的启动信息如下，启动好后输入账号和密码能进入dd-wrt的控制台，等同于路由启动好以后telnet 到机器。
附上TTL启动信息，望高手释惑如何才能进入redboot控制台！

mem setup
scanning for root partition
found RedBoot partition at [0xA8000000]
found linux partition at [0xA8030000]
decode 1f02
start service
starting Architecture code for fonera
Segmentation fault
/proc/sys/net/ipv4/ip_forward: No such file or directory
/etc/preinit: line 53: can't create /proc/sys/net/ipv4/netfilter/ip_conntrack_max: nonexistent directory
/etc/preinit: line 54: can't create /proc/sys/net/ipv4/netfilter/ip_conntrack_tcp_timeout_established: nonexistent directory
/etc/preinit: line 55: can't create /proc/sys/net/ipv4/netfilter/ip_conntrack_udp_timeout: nonexistent directory
sh: can't create /proc/sys/net/ipv4/tcp_congestion_control: nonexistent directory
/tmp/etc/passwd: No such file or directory
fit init
fis init
fis init -f
mem setup
scanning for root partition
found RedBoot partition at [0xA8000000]
found linux partition at [0xA8030000]
decode 1f02
start service
starting Architecture code for fonera
ar2315_wdt: starting watchdog w/timeout 60 seconds
watchdog hb: 60  ISR: 0x20  IMR: 0x89  WD : 0x8f0af1b2  WDC: 0x0
eth0: Atheros AR231x: 00:1d:0f:78:11:b3, irq 4
ar2313_eth_mii: probed
eth0: attached PHY driver [Generic PHY] (mii_bus:phy_addr=0:00)
load ATH 802.11 a/b/g Driver
ath_hal: module license 'Proprietary' taints kernel.
br0: Dropping NETIF_F_UFO since no NETIF_F_HW_CSUM feature.
device br0 entered promiscuous mode
device eth0 entered promiscuous mode
sh: ead: not found
sh: can't create /proc/sys/dev/wifi0/maxvaps: Permission denied
ath0
sh: can't create /proc/sys/dev/wifi0/csma: nonexistent directory
device ath0 entered promiscuous mode
br0: port 2(ath0) entering learning state
br0: port 1(eth0) entering learning state
device br0 left promiscuous mode
device br0 entered promiscuous mode
device br0 left promiscuous mode
device br0 entered promiscuous mode
br0: topology change detected, propagating
br0: port 2(ath0) entering forwarding state
br0: topology change detected, propagating
br0: port 1(eth0) entering forwarding state
br0: No such process
SIOCGIFFLAGS: No such device
SIOCGIFFLAGS: No such device
SIOCGIFFLAGS: No such device
SIOCGIFFLAGS: No such device
SIOCGIFFLAGS: No such device
SIOCGIFFLAGS: No such device
connect: Network is unreachable
connect: Network is unreachable
connect: Network is unreachable
gethostbyname: Network is unreachable
SIOCGIFFLAGS: No such device
SIOCGIFFLAGS: No such device
SIOCGIFFLAGS: No such device
SIOCGIFFLAGS: No such device
SIOCGIFFLAGS: No such device
SIOCGIFFLAGS: No such device
SIOCGIFFLAGS: No such device
SIOCGIFFLAGS: No such device
SIOCGIFFLAGS: No such device
SIOCGIFFLAGS: No such device
SIOCGIFFLAGS: No such device
SIOCGIFFLAGS: No such device
etherip: Ethernet over IPv4 tunneling driver
The Milkfish Router Services
ERROR: Necessary service setting not found: milkfish_username - aborting.
The Milkfish Router Services
Restoring SIP ddsubscriber database from NVRAM...
Empty.
The Milkfish Router Services
Restoring SIP ddaliases database from NVRAM...
Empty.
connect: Network is unreachable
connect: Network is unreachable
connect: Network is unreachable
gethostbyname: Network is unreachable
DD-WRT v24-sp2 std (c) 2010 NewMedia-NET GmbH
Release: 08/07/10 (SVN revision: 14896)
DD-WRT login: root
Password:
==========================================================

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||_| ||_||_____\ V  V / |  _ < | |    \ V / / __/|__   _|
|___/|___/      \_/\_/  |_| \_\|_|     \_/ |_____|  |_|

                       DD-WRT v24-sp2
                   http://www.dd-wrt.com

==========================================================
Jan  1 00:01:14 login[1479]: root login on 'console'

BusyBox v1.13.4 (2010-08-07 01:35:22 CEST) built-in shell (ash)
Enter 'help' for a list of built-in commands.
root@DD-WRT:~#

micr***

找到进入redboot的方法了，根本不需要TTL线，而是用网线连接LAN口，在刚上电的时候ping 192.168.1.1,在刚ping通的时候直接telnet 192.168.1.1:9000就进入redboot的命令行了。

官方进入的教程是：
http://www.dd-wrt.com/wiki/index.php/Redboot_access_script