目前在用cisco C1100系列路由器,具体型号为C1111-4P,具体配置如下
Current configuration : 12558 bytes ! ! Last configuration change at 15:52:46 UTC Sat Jul 12 2025 by admin ! NVRAM config last updated at 15:49:06 UTC Sat Jul 12 2025 by admin ! version 17.16 service timestamps debug datetime msec service timestamps log datetime msec service call-home platform qfp utilization monitor load 80 no platform punt-keepalive disable-kernel-core platform hardware throughput crypto 50000 ! hostname C1111-4P ! boot-start-marker boot system bootflash:c1100-universalk9.17.16.01a.SPA.bin ! Warning: Booting with bundle mode will be deprecated in the near future. Migration to install mode is required. boot system bootflash:c1100-universalk9.17.12.01a.SPA.bin ! Warning: Booting with bundle mode will be deprecated in the near future. Migration to install mode is required. boot-end-marker ! ! no aaa new-model clock timezone UTC 8 0 ! ip name-server 114.114.114.114 8.8.8.8 ! ! ! ip nbar http-services ! ! ! ! ! ip dhcp excluded-address 192.168.1.0 ip dhcp excluded-address 192.168.1.255 255.255.255.255 ! ip dhcp pool Vlan1 network 192.168.1.0 255.255.255.0 default-router 192.168.1.254 dns-server 202.101.224.69 ! ! ! login on-success log ! ! ! ! ! ipv6 unicast-routing ! ! subscriber templating ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! crypto pki trustpoint TP-self-signed-350757299 enrollment selfsigned subject-name cn=IOS-Self-Signed-Certificate-350757299 revocation-check none rsakeypair TP-self-signed-350757299 hash sha256 ! crypto pki trustpoint SLA-TrustPoint enrollment pkcs12 revocation-check crl hash sha256 ! ! crypto pki certificate chain TP-self-signed-350757299 crypto pki certificate chain SLA-TrustPoint ! crypto pki certificate pool cabundle nvram:ios_core.p7b ! ! ! ! voice service voip allow-connections sip to sip supplementary-service media-renegotiate trace sip registrar server expires max 120 min 60 ! ! ! ! ! ! voice register global mode cme source-address 192.168.5.1 port 5060 max-dn 200 max-pool 50 auto-register ! ! ! ! ! diagnostic bootup level minimal ! no license feature hseck9 license udi pid C1111-4P sn FGL2415LMTW license boot suite FoundationSuiteK9 license boot level uck9 memory free low-watermark processor 65914 et-analytics ! spanning-tree extend system-id ! ! username admin privilege 15 password 0 redundancy mode none ! ! ! ! ! ! ! vlan internal allocation policy ascending ! lldp run ! class-map match-all WEBUI-MULTIMEDIA_CONFERENCING-DSCP match dscp af41 class-map match-all WEBUI-BROADCAST_VIDEO-NBAR match protocol attribute traffic-class broadcast-video match protocol attribute business-relevance business-relevant class-map match-all WEBUI-VOICE-NBAR match protocol attribute traffic-class voip-telephony match protocol attribute business-relevance business-relevant class-map match-all WEBUI-BULK_DATA-NBAR match protocol attribute traffic-class bulk-data match protocol attribute business-relevance business-relevant class-map match-all WEBUI-SIGNALING-NBAR match protocol attribute traffic-class signaling match protocol attribute business-relevance business-relevant class-map match-all WEBUI-NETWORK_CONTROL-DSCP match dscp cs6 class-map match-all WEBUI-SCAVENGER-NBAR match protocol attribute business-relevance business-irrelevant class-map match-all WEBUI-SCAVENGER-DSCP match dscp cs1 class-map match-all WEBUI-NETWORK_CONTROL-NBAR match protocol attribute traffic-class network-control match protocol attribute business-relevance business-relevant class-map match-all WEBUI-SIGNALING-DSCP match dscp cs3 class-map match-all WEBUI-BULK_DATA-DSCP match dscp af11 class-map match-all WEBUI-BROADCAST_VIDEO-DSCP match dscp cs5 class-map match-all WEBUI-MULTIMEDIA_CONFERENCING-NBAR match protocol attribute traffic-class multimedia-conferencing match protocol attribute business-relevance business-relevant class-map match-all WEBUI-VOICE-DSCP match dscp ef class-map match-all WEBUI-NETWORK_MANAGEMENT-NBAR match protocol attribute traffic-class ops-admin-mgmt match protocol attribute business-relevance business-relevant class-map match-all WEBUI-MULTIMEDIA_STREAMING-DSCP match dscp af31 class-map match-all WEBUI-REALTIME_INTERACTIVE-NBAR match protocol attribute traffic-class real-time-interactive match protocol attribute business-relevance business-relevant class-map match-all WEBUI-TRANSACTIONAL_DATA-DSCP match dscp af21 class-map match-all WEBUI-REALTIME_INTERACTIVE-DSCP match dscp cs4 class-map match-all WEBUI-TRANSACTIONAL_DATA-NBAR match protocol attribute traffic-class transactional-data match protocol attribute business-relevance business-relevant class-map match-all WEBUI-NETWORK_MANAGEMENT-DSCP match dscp cs2 class-map match-all WEBUI-MULTIMEDIA_STREAMING-NBAR match protocol attribute traffic-class multimedia-streaming match protocol attribute business-relevance business-relevant ! policy-map WEBUI-MARKING-IN class WEBUI-VOICE-NBAR set dscp ef class WEBUI-BROADCAST_VIDEO-NBAR set dscp cs5 class WEBUI-REALTIME_INTERACTIVE-NBAR set dscp cs4 class WEBUI-MULTIMEDIA_CONFERENCING-NBAR set dscp af41 class WEBUI-MULTIMEDIA_STREAMING-NBAR set dscp af31 class WEBUI-SIGNALING-NBAR set dscp cs3 class WEBUI-NETWORK_CONTROL-NBAR set dscp cs6 class WEBUI-NETWORK_MANAGEMENT-NBAR set dscp cs2 class WEBUI-TRANSACTIONAL_DATA-NBAR set dscp af21 class WEBUI-BULK_DATA-NBAR set dscp af11 class WEBUI-SCAVENGER-NBAR set dscp cs1 class class-default set dscp default policy-map WEBUI-QUEUING-OUT class WEBUI-VOICE-DSCP priority percent 10 class WEBUI-BROADCAST_VIDEO-DSCP priority percent 10 class WEBUI-REALTIME_INTERACTIVE-DSCP priority percent 13 class WEBUI-NETWORK_CONTROL-DSCP bandwidth percent 2 class WEBUI-SIGNALING-DSCP bandwidth percent 2 class WEBUI-NETWORK_MANAGEMENT-DSCP bandwidth percent 3 class WEBUI-MULTIMEDIA_CONFERENCING-DSCP bandwidth percent 10 fair-queue random-detect dscp-based class WEBUI-MULTIMEDIA_STREAMING-DSCP bandwidth percent 10 fair-queue random-detect dscp-based class WEBUI-TRANSACTIONAL_DATA-DSCP bandwidth percent 10 fair-queue random-detect dscp-based class WEBUI-BULK_DATA-DSCP bandwidth percent 4 fair-queue random-detect dscp-based class WEBUI-SCAVENGER-DSCP bandwidth percent 1 class class-default bandwidth percent 25 fair-queue random-detect dscp-based ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! interface Loopback0 ip address 192.168.254.1 255.255.255.0 ! interface GigabitEthernet0/0/0 no ip address negotiation auto service-policy output WEBUI-QUEUING-OUT ! interface GigabitEthernet0/0/1 ip address 192.168.128.81 255.255.255.0 ip nat outside media-type rj45 negotiation auto spanning-tree bpdufilter enable spanning-tree bpduguard enable service-policy output WEBUI-QUEUING-OUT ! interface GigabitEthernet0/1/0 spanning-tree bpdufilter enable spanning-tree bpduguard enable ! interface GigabitEthernet0/1/1 ! interface GigabitEthernet0/1/2 switchport ! interface GigabitEthernet0/1/3 switchport switchport mode access ! interface Vlan1 ip address 192.168.1.254 255.255.255.0 ip nbar protocol-discovery ip nat inside service-policy input WEBUI-MARKING-IN ! iox ip forward-protocol nd ip forward-protocol udp ip http server ip http authentication local ip http secure-server ip http secure-trustpoint TP-self-signed-350757299 ip http timeout-policy idle 600 life 600 requests 25 ! ip nat inside source list 101 interface GigabitEthernet0/0/1 overload ip nat inside source list CISCO-CWA-URL-REDIRECT-ACL interface GigabitEthernet0/0/1 overload ip nat inside source route-map track-primary-if interface GigabitEthernet0/0/1 overload ip route 0.0.0.0 0.0.0.0 192.168.128.254 ip ssh bulk-mode 131072 ! ip access-list extended 101 10 permit ip any any 20 permit udp any eq domain any route-map track-primary-if permit 1 match ip address 197 set interface GigabitEthernet0/0/1 ! snmp-server manager ! ! ! control-plane ! ! ! ! ! telephony-service max-dn 200 ip source-address 192.168.5.1 port 2000 max-conferences 8 gain -6 transfer-system full-consult ! ! ! ! line con 0 transport input none stopbits 1 line vty 0 login length 0 transport input ssh line vty 1 4 login transport input ssh line vty 5 14 login transport input ssh ! ntp server ip ciscome.pool.ntp.org prefer source GigabitEthernet0/0/1 call-home ! If contact email address in call-home is configured as sch-smart-licensing@cisco.com ! the email address configured in Cisco Smart License Portal will be used as contact email address to send SCH notifications. contact-email-addr sch-smart-licensing@cisco.com profile "CiscoTAC-1" active destination transport-method http ! ! ! ! ! ! end
上面的配置中,将interface GigabitEthernet0/0/1配置为192.168.128.81 255.255.255.0
网关配置为 192.168.128.254
但是在这个配置下,系统显示GigabitEthernet0/0/1为lan口,如图:
如果在webUI将GigabitEthernet0/0/1修改为wan口,系统会自动添加一条静态路由
ip route 0.0.0.0 0.0.0.0 GigabitEthernet0/0/1,导致网络不通。如下图:
如果删除该条静态路由,则GigabitEthernet0/0/1在系统中又会显示为lan口。
想请教下各位,
1. 在给定ip和网关的情况下,我的配置是否正确?
2. webUI是不是通过ip route 0.0.0.0 0.0.0.0 GigabitEthernet0/0/1这条配置来判断某接口是lan还是wan?
3. 还是说需要将GigabitEthernet0/0/1设置为wan口,保留ip route 0.0.0.0 0.0.0.0 GigabitEthernet0/0/1的配置?
4. 在保留ip route 0.0.0.0 0.0.0.0 GigabitEthernet0/0/1配置的情况下,又需要增加哪些配置才能走通网络呢?
5. GigabitEthernet0/0/1设置为lan或wan,会有哪些影响?是否会对后续配置隧道和DMVPN造成影响?
谢谢各位
已解决! 转到解答。
1. 在给定ip和网关的情况下,我的配置是否正确?
答:基本正确但有缺陷:
NAT配置合理(ip nat inside source list 101 interface GigabitEthernet0/0/1 overload)。
静态路由需修正:当前配置 ip route 0.0.0.0 0.0.0.0 192.168.128.254 未绑定出接口,应改为:
ip route 0.0.0.0 0.0.0.0 GigabitEthernet0/0/1 192.168.128.254
或明确指定下一跳IP(如现有配置),但需确保ARP解析正常。
2. webUI是不是通过ip route 0.0.0.0 0.0.0.0 GigabitEthernet0/0/1这条配置来判断某接口是lan还是wan?
答:是的。WebUI根据以下逻辑自动识别接口角色:若接口是默认路由的出接口 → 识别为 WAN口(连接外网)。若接口连接内网设备且无默认路由 → 识别为 LAN口(如VLAN1)。
3. 还是说需要将GigabitEthernet0/0/1设置为wan口,保留ip route 0.0.0.0 0.0.0.0 GigabitEthernet0/0/1的配置?
答:必须设置为WAN口。因该接口承担外网通信(NAT Outside、网关指向公网),作为WAN口是正确设计。保留修正后的默认路由(包含出接口+网关IP)。
4. 在保留ip route 0.0.0.0 0.0.0.0 GigabitEthernet0/0/1配置的情况下,又需要增加哪些配置才能走通网络呢?
答:修正默认路由并验证基础配置:
! 删除原错误路由
no ip route 0.0.0.0 0.0.0.0 GigabitEthernet0/0/1
! 添加正确路由(二选一)
ip route 0.0.0.0 0.0.0.0 GigabitEthernet0/0/1 192.168.128.254 # 指定出接口+网关
或
ip route 0.0.0.0 0.0.0.0 192.168.128.254 # 仅网关(依赖ARP解析)
关键验证步骤:
ping 192.168.128.254 # 确认网关可达
show ip route # 检查默认路由是否生效
show ip nat translations # 验证NAT会话状态
5. GigabitEthernet0/0/1设置为lan或wan,会有哪些影响?是否会对后续配置隧道和DMVPN造成影响?
答:接口类型为WAN口,DMVPN依赖公网IP接口建立隧道(mGRE/NHRP需公网可达性)。接口类型为LAN口,若错误配置为LAN口,隧道无法建立(NHRP注册失败,路由协议无法交互)。
GigabitEthernet0/0/1 被配置为:
IP地址:192.168.128.81/24
NAT Outside(外网接口)
网关:192.168.128.254
静态路由:ip route 0.0.0.0 0.0.0.0 192.168.128.254
问题:静态路由未指定出接口(如 ip route 0.0.0.0 0.0.0.0 GigabitEthernet0/0/1 192.168.128.254),导致路由表可能无法正确关联接口。
当您将接口改为WAN口时,系统自动添加 ip route 0.0.0.0 0.0.0.0 GigabitEthernet0/0/1,这是正确的默认路由。此时网络不通是因缺少下一跳网关地址(仅指定出接口未指定网关IP),需结合网关IP配置。
1. 在给定ip和网关的情况下,我的配置是否正确?
答:基本正确但有缺陷:
NAT配置合理(ip nat inside source list 101 interface GigabitEthernet0/0/1 overload)。
静态路由需修正:当前配置 ip route 0.0.0.0 0.0.0.0 192.168.128.254 未绑定出接口,应改为:
ip route 0.0.0.0 0.0.0.0 GigabitEthernet0/0/1 192.168.128.254
或明确指定下一跳IP(如现有配置),但需确保ARP解析正常。
2. webUI是不是通过ip route 0.0.0.0 0.0.0.0 GigabitEthernet0/0/1这条配置来判断某接口是lan还是wan?
答:是的。WebUI根据以下逻辑自动识别接口角色:若接口是默认路由的出接口 → 识别为 WAN口(连接外网)。若接口连接内网设备且无默认路由 → 识别为 LAN口(如VLAN1)。
3. 还是说需要将GigabitEthernet0/0/1设置为wan口,保留ip route 0.0.0.0 0.0.0.0 GigabitEthernet0/0/1的配置?
答:必须设置为WAN口。因该接口承担外网通信(NAT Outside、网关指向公网),作为WAN口是正确设计。保留修正后的默认路由(包含出接口+网关IP)。
4. 在保留ip route 0.0.0.0 0.0.0.0 GigabitEthernet0/0/1配置的情况下,又需要增加哪些配置才能走通网络呢?
答:修正默认路由并验证基础配置:
! 删除原错误路由
no ip route 0.0.0.0 0.0.0.0 GigabitEthernet0/0/1
! 添加正确路由(二选一)
ip route 0.0.0.0 0.0.0.0 GigabitEthernet0/0/1 192.168.128.254 # 指定出接口+网关
或
ip route 0.0.0.0 0.0.0.0 192.168.128.254 # 仅网关(依赖ARP解析)
关键验证步骤:
ping 192.168.128.254 # 确认网关可达
show ip route # 检查默认路由是否生效
show ip nat translations # 验证NAT会话状态
5. GigabitEthernet0/0/1设置为lan或wan,会有哪些影响?是否会对后续配置隧道和DMVPN造成影响?
答:接口类型为WAN口,DMVPN依赖公网IP接口建立隧道(mGRE/NHRP需公网可达性)。接口类型为LAN口,若错误配置为LAN口,隧道无法建立(NHRP注册失败,路由协议无法交互)。
WebUI对WAN口的“Primary”状态检测通常依赖以下条件:
·默认路由指向WAN口:您已通过ip route 0.0.0.0 0.0.0.0 GigabitEthernet0/0/1 192.168.128.254满足该条件。
·NAT配置关联WAN口:您的配置ip nat outside已正确应用在接口上。
·接口协议状态为UP:需确保物理层(Layer 1)和协议层(Layer 2)状态正常(show interfaces GigabitEthernet0/0/1确认无down状态)。
·DHCP或静态IP配置完整性:若WebUI要求DHCP客户端激活,需补充相关配置。
解决方案
(1) 启用DHCP客户端功能(即使使用静态IP)
部分WebUI要求WAN口启用DHCP客户端服务(即使实际使用静态IP),需在接口添加:
interface GigabitEthernet0/0/1
ip address 192.168.128.81 255.255.255.0
ip dhcp client route track 1 # 启用DHCP路由跟踪(模拟WAN服务状态)
(2) 显式声明WAN角色
通过CLI强制标记接口为Primary WAN:
interface GigabitEthernet0/0/1
description PRIMARY-WAN # 明确描述接口角色
(3) 检查NAT与路由协同
确认NAT配置关联了正确的ACL和接口:
ip nat inside source list 101 interface GigabitEthernet0/0/1 overload
若ACL 101未涵盖所有内网流量(如缺少子网),需扩展ACL范围。
(4) 更新WebUI缓存
重启Web服务刷新状态检测:
reload webui # 或重启路由器(谨慎操作)
反复试验了一下,现在webUI似乎只认为存在配置ip route 0.0.0.0 0.0.0.0 GigabitEthernet0/0/1时,才显示wen口已配置。
如果将配置改为 ip route 0.0.0.0 0.0.0.0 GigabitEthernet0/0/1 192.168.128.254,接口配置中显示为wan,但是外面任然显示wan口未配置
这是不是ios webUI的bug?