专用ADSL在CISCO 1721上如何配置

yanglinyu

大虾，我公司申请了一条专用ADSL，IP：218.19.174.8；网关：218.19.174.1 。DNS：202.96.128.68，请问在CISCO 1721上如何配置

zujuhu

是专线就直接配。

yanglinyu

楼上的大虾，具体点如何？。虚拟ADSL的配置方式我知道。那些有变动。

yanglinyu

直接用电话线连接还是要是用ADSL MODEM再与路由器连接。

zujuhu

在专线接入方式中，ＡＤＳＬ设备提供透明的ＡＴＭ ＰＶＣ通路,ＡＤＳＬ－Ｍｏｄｅｍ采用１４８３－Ｂｒｉｄｇｅ协议,在路由器上配ip地址,局域网要上internet要做nat就行了.

yanglinyu

以下是我根据具体情况配置的请楼上的大虾指点:
!
ip nat pool pool  c1721 192.168.0.1 192.168.0.254 netmask 255.255.255.0

interface FastEthernet0
ip address 192.168.0.1 255.255.255.0

no shutdown

ip nat inside
!

interface ATM0

ip address 218.19.174.10  255.255.255.0

no shutdown

bundle-enable

dsl operating-mode auto

hold-queue 224 in

interface ATM0.1 point-to-point <=ADSL的通讯 依靠VC，所以必须设定点到点VC

pvc 8/35

!

ip mtu 1492

ip nat outside

encapsulation ppp

ip nat inside source list 1 pool c1721 overload


ip classless

ip route 0.0.0.0 0.0.0.0 218.19.174.1

no ip http server

!

access-list 1 permit 10.92.1.0 0.0.0.255

zujuhu

你是专线还是pppoa方式接入
专线方式

　　在专线接入方式中，ＡＤＳＬ设备提供透明的ＡＴＭ ＰＶＣ通路，ＡＤＳＬ－Ｍｏｄｅｍ采用１４８３－Ｂｒｉｄｇｅ协议，而业务提供点需要专线接入服务器提供支持，单用户ＰＣ的ＩＰ地址和接入服务器接入端口设在同一网段上。局域网接入时，为保证用户数据安全以及减少局端路由设备的操作，需在用户接入端加路由设备。

　　专线接入方式可以应用于各种数据通信场合，特别是企业专线上网，它具有开通安装简单等特点，但缺乏对用户的管理手段。

ＰＰＰｏＡ方式

　　ＰＰＰｏＡ方式中，ＰＰＰ可以由用户端ＰＣ发起，也可以由ＡＤＳＬ－Ｍｏｄｅｍ发起，ＰＰＰｏＡ方式需要有宽带的接入服务器支持。

　　ＰＰＰ由用户ＰＣ发起时，ＡＤＳＬ－Ｍｏｄｅｍ需用２５Ｍｂｉｔ／ｓ ＡＴＭ端口通过５类线用ＲＪ４５头和用户ＰＣ相连，用户ＰＣ需插ＡＴＭ网卡，并安装客户端软件，在ＡＴＭ网卡和宽带接入服务器之间建立ＰＶＣ连接。ＰＰＰ由ＡＤＳＬ－Ｍｏｄｅｍ发起时，ＡＤＳＬ－Ｍｏｄｅｍ需支持ＰＰＰｏＡ，用户ＰＣ可以通过１０ ＢａｓｅＴ以太网口和ＡＤＳＬ－Ｍｏｄｅｍ相连，在ＡＤＳＬ－Ｍｏｄｅｍ和宽带接入服务器之间建立ＰＶＣ连接，此时ＡＤＳＬ－Ｍｏｄｅｍ实际起到了ＰＰＰ代理的作用。

　　由于ＡＴＭ到桌面存在ＡＴＭ网卡价格高等局限性，且没有以太网接入方式普及，因此下面主要讨论用户通过以太网口接入方式。ＡＤＳＬ－Ｍｏｄｅｍ发起ＰＰＰ方式时，用户ＰＣ不必安装客户端软件，像专线一样可直接使用浏览器软件上网。ＡＤＳＬ－Ｍｏｄｅｍ在接收到来自用户端的数据时，会向宽带接入服务器发起ＰＰＰ连接；接入服务器在接收到ＰＰＰ连接后，可以对ＡＤＳＬ－Ｍｏｄｅｍ进行合法性确认，向ＡＤＳＬ－Ｍｏｄｅｍ分配ＩＰ地址；ＡＤＳＬ－ Ｍｏｄｅｍ通过ＮＡＴ功能允许用户ＰＣ接入。此时需要ＡＤＳＬ－Ｍｏｄｅｍ支持认证功能，并在ＰＰＰｏＡ配置时，在ＡＤＳＬ－Ｍｏｄｅｍ上设账号及口令；也可以在ＡＤＳＬ－Ｍｏｄｅｍ和接入服务器只是建立ＰＰＰ连接而不做任何事情。可以看出，使用ＰＰＰｏＡ时，用户端ＰＣ并没有进行ＰＰＰ的认证，也无法通过ＰＰＰ协议从接入服务器获得ＩＰ地址，而需通过静态分配获得ＩＰ地址。因此从用户端看，ＰＰＰｏＡ方式和专线接入方式没有任何差别。

　　ＰＰＰｏＡ方式具有用户接入简单的特点，但由于它在接入速率上没有比专线接入更特别的优势，且ＡＤＳＬ－Ｍｏｄｅｍ必须支持ＰＰＰｏＡ，因此这种方式在实际应用中很少使用。

yanglinyu

大虾，很好，首先很感谢你的几次回复。现在我把我的情况告诉你。首先我的配置如下：
Current configuration : 784 bytes
!
version 12.2
service timestamps debug datetime msec
service timestamps log datetime msec
no service password-encryption
!
hostname Router
!
!
ip subnet-zero
!
!
!
!
!
interface ATM0
ip address 218.19.174.10 255.255.255.0
ip mtu 1492
ip nat outside
no atm ilmi-keepalive
pvc 8/35
encapsulation aal5snap
!
dsl operating-mode auto
hold-queue 224 in
!
interface ATM0.1 point-to-point
!
interface FastEthernet0
ip address 192.168.0.13 255.255.255.0
ip nat inside
speed auto
!
router rip
network 192.168.0.0
network 218.19.174.0
!
ip nat inside source list 2 interface ATM0 overload
ip classless
ip route 0.0.0.0 0.0.0.0 218.19.174.1
no ip http server
!
!
access-list 2 permit 192.168.0.0 0.0.0.255
!
line con 0
line aux 0
line vty 0 4
login
!
no scheduler allocate
end

问题：1.在控制界面里不能PING到ATM0端口。但是在DOS环境里可以；
          2.PING不到网关218.19.174.1 ，在以上两种环境里。
请大虾帮助，并提出具体的补充配置。万分感谢！！

zujuhu

interface ATM0
ip address 218.19.174.10 255.255.255.0
ip mtu 1492
ip nat outside
no atm ilmi-keepalive
pvc 8/35
protocol ip 218.19.174.1
encapsulation aal5snap
!
dsl operating-mode auto
hold-queue 224 in
你输入这个看能不能通,不行的话打开debug atm event把信息抓下来.

yanglinyu

按你配置后，还是不行：debug atm ev  数据如下：
接电话线后：
Mar  1 00:13:34.535:
*Mar  1 00:13:34.539: cdlsar_safe_start: idb = 0x80FE31D8,
                    cos_queue = 0x81160F54
*Mar  1 00:13:37.939:
*Mar  1 00:13:37.943: cdlsar_safe_start: idb = 0x80FE31D8,
                    cos_queue = 0x81160F54
*Mar  1 00:13:37.943: ATM0: vcd=1, tsi not available, tx_os_cnt=3 tsi: last_rcvd
= 0, seq_num = 0

*Mar  1 00:13:42.891:
*Mar  1 00:13:42.891: cdlsar_safe_start: idb = 0x80FE31D8,
                    cos_queue = 0x81160F54
*Mar  1 00:13:46.027:
*Mar  1 00:13:46.027: cdlsar_safe_start: idb = 0x80FE31D8,
                    cos_queue = 0x81160F54
*Mar  1 00:13:46.219:
*Mar  1 00:13:46.219: cdlsar_safe_start: idb = 0x80FE31D8,
                    cos_queue = 0x81160F54
*Mar  1 00:13:46.219: ATM0: vcd=1, tsi not available, tx_os_cnt=3 tsi: last_rcvd
= 0, seq_num = 0

*Mar  1 00:13:49.247:
*Mar  1 00:13:49.247: cdlsar_safe_start: idb = 0x80FE31D8,
                    cos_queue = 0x81160F54
Mar  1 00:13:53.159:
*Mar  1 00:13:53.163: cdlsar_safe_start: idb = 0x80FE31D8,
                    cos_queue = 0x81160F54
*Mar  1 00:13:54.327:
*Mar  1 00:13:54.327: cdlsar_safe_start: idb = 0x80FE31D8,
                    cos_queue = 0x81160F54
*Mar  1 00:13:54.327: ATM0: vcd=1, tsi not available, tx_os_cnt=3 tsi: last_rcvd
= 0, seq_num = 0

*Mar  1 00:13:55.099:
*Mar  1 00:13:55.099: cdlsar_safe_start: idb = 0x80FE31D8,
                    cos_queue = 0x81160F54
*Mar  1 00:13:59.083:
*Mar  1 00:13:59.083: cdlsar_safe_start: idb = 0x80FE31D8,
                    cos_queue = 0x81160F54
*Mar  1 00:14:03.299:
*Mar  1 00:14:03.299: cdlsar_safe_start: idb = 0x80FE31D8,
                    cos_queue = 0x81160F54
*Mar  1 00:14:04.275:
*Mar  1 00:14:04.275: cdlsar_safe_start: idb = 0x80FE31D8,
                    cos_queue = 0x81160F54
*Mar  1 00:14:07.555:
*Mar  1 00:14:07.555: cdlsar_safe_start: idb = 0x80FE31D8,
                    cos_queue = 0x81160F54
*Mar  1 00:14:07.559: ATM0: vcd=1, tsi not available, tx_os_cnt=3 tsi: last_rcvd
= 0, seq_num = 0

*Mar  1 00:14:11.551:
*Mar  1 00:14:11.555: cdlsar_safe_start: idb = 0x80FE31D8,
                    cos_queue = 0x81160F54
Mar  1 00:14:17.339: ATM0: vcd=1, tsi not available, tx_os_cnt=3 tsi: last_rcvd
= 0, seq_num = 0

*Mar  1 00:14:17.355:
*Mar  1 00:14:17.355: cdlsar_safe_start: idb = 0x80FE31D8,
                    cos_queue = 0x81160F54
*Mar  1 00:14:25.163:
*Mar  1 00:14:25.163: cdlsar_safe_start: idb = 0x80FE31D8,
                    cos_queue = 0x81160F54
*Mar  1 00:14:26.371:
*Mar  1 00:14:26.371: cdlsar_safe_start: idb = 0x80FE31D8,
                    cos_queue = 0x81160F54
*Mar  1 00:14:26.371: ATM0: vcd=1, tsi not available, tx_os_cnt=3 tsi: last_rcvd
= 0, seq_num = 0
*Mar  1 00:15:07.951: cdlsar_safe_start: idb = 0x80FE31D8,
                    cos_queue = 0x81160F54
*Mar  1 00:15:08.947:
*Mar  1 00:15:08.951: cdlsar_safe_start: idb = 0x80FE31D8,
                    cos_queue = 0x81160F54
*Mar  1 00:15:08.951: ATM0: vcd=1, tsi not available, tx_os_cnt=3 tsi: last_rcvd
= 0, seq_num = 0

*Mar  1 00:15:10.459:
*Mar  1 00:15:10.459: cdlsar_safe_start: idb = 0x80FE31D8,
                    cos_queue = 0x81160F54
*Mar  1 00:15:12.903:
*Mar  1 00:15:12.903: cdlsar_safe_start: idb = 0x80FE31D8,
                    cos_queue = 0x81160F54
*Mar  1 00:15:13.543:
*Mar  1 00:15:13.543: cdlsar_safe_start: idb = 0x80FE31D8,
                    cos_queue = 0x81160F54
*Mar  1 00:15:13.543: ATM0: vcd=1, tsi not available, tx_os_cnt=3 tsi: last_rcvd
= 0, seq_num = 0

*Mar  1 00:15:27.659:
*Mar  1 00:15:27.659: cdlsar_safe_start: idb = 0x80FE31D8,
                    cos_queue = 0x81160F54
*Mar  1 00:15:28.495:
*Mar  1 00:15:28.495: cdlsar_safe_start: idb = 0x80FE31D8,
                    cos_queue = 0x81160F54
*Mar  1 00:15:29.231:
*Mar  1 00:15:29.231: cdlsar_safe_start: idb = 0x80FE31D8,
                    cos_queue = 0x81160F54
*Mar  1 00:15:29.231: ATM0: vcd=1, tsi not available, tx_os_cnt=3 tsi: last_rcvd
= 0, seq_num = 0
未接电话线时：
Mar  1 00:16:11.035: DSL(ATM0): 5: Modem state = 0x8
*Mar  1 00:16:13.535: DSL(ATM0): 6: Modem state = 0x8
*Mar  1 00:16:16.035: DSL(ATM0): 7: Modem state = 0x8
*Mar  1 00:16:18.535: DSL(ATM0): 8: Modem state = 0x8
*Mar  1 00:16:21.035: DSL(ATM0): 9: Modem state = 0x8
*Mar  1 00:16:23.535: DSL(ATM0): 10: Modem state = 0x8
*Mar  1 00:16:26.035: DSL(ATM0): 11: Modem state = 0x8
*Mar  1 00:16:28.535: DSL(ATM0): 12: Modem state = 0x8
*Mar  1 00:16:31.035: DSL(ATM0): 13: Modem state = 0x8
*Mar  1 00:16:33.535: DSL(ATM0): 14: Modem state = 0x8
*Mar  1 00:16:36.035: DSL(ATM0): 15: Modem state = 0x8
*Mar  1 00:16:38.535: DSL(ATM0): 16: Modem state = 0x8
*Mar  1 00:16:41.035: DSL(ATM0): 17: Modem state = 0x8
*Mar  1 00:16:43.535: DSL(ATM0): 18: Modem state = 0x8
*Mar  1 00:17:41.071: DSL(ATM0): 20: Modem state = 0x8
*Mar  1 00:17:43.571: DSL(ATM0): Could not establish connection event=1
*Mar  1 00:17:43.571: DSL(ATM0): Sent command 0x4
*Mar  1 00:17:43.571: DSL(ATM0): Send ADSL_OPEN command.
*Mar  1 00:17:43.571: DSL(ATM0): Using subfunction 0x15
*Mar  1 00:17:43.571: DSL(ATM0): Sent command 0x3
*Mar  1 00:17:43.603: DSL(ATM0): Received response: 0x25
*Mar  1 00:17:43.603: DSL(ATM0): Unexpected response 0x25
*Mar  1 00:17:43.603: DSL(ATM0): Send ADSL_OPEN command.
*Mar  1 00:17:43.603: DSL(ATM0): Using subfunction 0x15
*Mar  1 00:17:43.603: DSL(ATM0): Sent command 0x3
*Mar  1 00:17:46.103: DSL(ATM0): 1: Modem state = 0x8

请帮我分析一下

原帖由 "zujuhu" 发表：
interface ATM0
ip address 218.19.174.10 255.255.255.0
ip mtu 1492
ip nat outside
no atm ilmi-keepalive
pvc 8/35
protocol ip 218.19.174.1
encapsulation aal5snap
!
dsl operating-mode au..........