[H3C]display current-configuration
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version 7.1.070, Release 1119P11
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sysname H3C
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telnet server enable
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irf mac-address persistent timer
irf auto-update enable
undo irf link-delay
irf member 1 priority 1
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dhcp enable
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lldp global enable
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fan prefer-direction slot 1 power-to-port password-recovery enable
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vlan 1
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vlan 10 # vlan 20
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vlan 30
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vlan 40
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stp global enable
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dhcp server ip-pool vlan20
gateway-list 10.10.20.1
network 10.10.20.0 mask 255.255.255.0
dns-list 218.201.4.3
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dhcp server ip-pool vlan30
gateway-list 10.10.30.1
network 10.10.30.0 mask 255.255.255.0
dns-list 218.201.4.3
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dhcp server ip-pool vlan40
gateway-list 10.10.40.1
network 10.10.40.0 mask 255.255.255.0
dns-list 218.201.4.3
# interface NULL0
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interface Vlan-interface10
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interface Vlan-interface20
ip address 10.10.20.1 255.255.255.0
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interface Vlan-interface30
ip address 10.10.30.1 255.255.255.0
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interface Vlan-interface40
ip address 10.10.40.1 255.255.255.0
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interface GigabitEthernet1/0/24
port link-mode route
combo enable copper
ip address 192.168.2.241 255.255.255.0
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interface GigabitEthernet1/0/1
port link-mode bridge
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interface GigabitEthernet1/0/2
port link-mode bridge
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interface GigabitEthernet1/0/3
port link-mode bridge
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interface GigabitEthernet1/0/4
port link-mode bridge
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interface GigabitEthernet1/0/5
port link-mode bridge
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interface GigabitEthernet1/0/6
port link-mode bridge
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interface GigabitEthernet1/0/7
port link-mode bridge
port access vlan 20
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interface GigabitEthernet1/0/8
port link-mode bridge
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interface GigabitEthernet1/0/9
port link-mode bridge
# interface GigabitEthernet1/0/10
port link-mode bridge
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interface GigabitEthernet1/0/11
port link-mode bridge
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interface GigabitEthernet1/0/12
port link-mode bridge
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interface GigabitEthernet1/0/13
port link-mode bridge
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interface GigabitEthernet1/0/14
port link-mode bridge
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interface GigabitEthernet1/0/15
port link-mode bridge
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interface GigabitEthernet1/0/16
port link-mode bridge
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interface GigabitEthernet1/0/17
port link-mode bridge
port access vlan 20
combo enable copper
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interface GigabitEthernet1/0/18
port link-mode bridge
port access vlan 30
combo enable copper
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interface GigabitEthernet1/0/19
port link-mode bridge
port access vlan 40
combo enable copper
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interface GigabitEthernet1/0/20
port link-mode bridge
combo enable copper
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interface GigabitEthernet1/0/21
port link-mode bridge
combo enable copper
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interface GigabitEthernet1/0/22
port link-mode bridge
combo enable copper
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interface GigabitEthernet1/0/23
port link-mode bridge
combo enable copper
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interface M-GigabitEthernet0/0/0
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interface Ten-GigabitEthernet1/0/25
port link-mode bridge
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interface Ten-GigabitEthernet1/0/26
port link-mode bridge
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interface Ten-GigabitEthernet1/0/27
port link-mode bridge
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interface Ten-GigabitEthernet1/0/28
port link-mode bridge
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scheduler logfile size 16
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line class aux user-role network-admin
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line class usb
user-role network-admin
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line class vty
user-role network-operator
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line aux 0
user-role network-admin
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line vty 0 63
authentication-mode scheme
user-role network-operator
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ip route-static 0.0.0.0 0 GigabitEthernet1/0/24 192.168.2.1
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radius scheme system
user-name-format without-domain
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domain system
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domain default enable system
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role name level-0
description Predefined level-0 role
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role name level-1
description Predefined level-1 role
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role name level-2
description Predefined level-2 role
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role name level-3
description Predefined level-3 role
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role name level-4
description Predefined level-4 role
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role name level-5
description Predefined level-5 role
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role name level-6
description Predefined level-6 role
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role name level-7
description Predefined level-7 role
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role name level-8
description Predefined level-8 role
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role name level-9
description Predefined level-9 role
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role name level-10
description Predefined level-10 role
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role name level-11
description Predefined level-11 role
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role name level-12
description Predefined level-12 role
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role name level-13
description Predefined level-13 role
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role name level-14
description Predefined level-14 role
# user-group system
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local-user admin class manage
password hash $h$6$iPN6AN/jI1ETih6t$eVpGI/+K+oN4ull5adRYCZhtR7/blj1hEpPSdtWwndKuGocD2xE4zjlzqXHMHumAVzp++np1TKMspmEkxB40HQ==
service-type telnet http https
authorization-attribute user-role network-admin
authorization-attribute user-role network-operator
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ip http enable
ip https enable
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配置如上，埠24啟用路由功能，上聯網關192.168.2.1/24，埠17、18、19接電腦，電腦都能獲取到對應DHCP地址，能PING通網關20.1、30.1、40.1，也能ping通192.168.2.241，但是不能ping通上級網關192.168.2.1
在交換機里面能ping通192.168.2.1，求老師傅指點迷津。
uj5u.com熱心網友回復：
192.168.2.1所在設備沒有回程路由uj5u.com熱心網友回復：
192.168.2.1是路由器，已開啟DHCP，192.168.2.0其它設備都能ping通192.168.2.241，不應該是回程路由不通的原因啊？uj5u.com熱心網友回復：
up route-static 0.0.0.00 GigabitEthernet1/0/24
192.168.2.1
千兆以太網都是作業在橋接模式，所有子網的總出口都是192.168.2.1。
好像沒出什么問題呀。
uj5u.com熱心網友回復：
查一下17.18.19口獲取的IP地址是多少？和你預期要獲取的IP地址池一致嗎？uj5u.com熱心網友回復：
的確需要在路由器上寫一個回程路由 ： ip route-static 192.168.0.0 16 192.168.2.241uj5u.com熱心網友回復：
17.18.19分別獲取的20.0/30.0/40.0地址，證明DHCP服務是正常啟動了的uj5u.com熱心網友回復：
交換機通過10網段交接pc，通過168.168.2.0網段連接路由器，所以路由器并不知道10網段怎么走，所以需要查一下是否有去往10網段的路由。uj5u.com熱心網友回復：
添加回程路由就可以了。之前我也在這里卡了一下，然后整了很久很久uj5u.com熱心網友回復：
的確需要在192.168.2.1路由器上寫一個回程路由 ： ip route-static 192.168.0.0 16 192.168.2.241
如果在2.241的設備是路由設備 做的nat 那樣就不需要寫回程路由因為他們都是以192.168.2.241的身份或者2.0網段的其他身份去訪問的2.1設備，而你其他vlan30 和vlan40 之所以能ping通是因為在三層sw上起了vlanif介面并且配置了ip 所以這臺設備有去192.168.2.0網段的路由自然且因為241在自身設備上所以沒有問題，但是2.1的設備不行 因為此時你的訪問是以vlan30 1010.30.254/24 的ip去訪問的 但是在2.1設備沒有該路由，有的是2.0網段的路由
uj5u.com熱心網友回復：
檢查路由器的路由表資訊看看是否有指向內網的路由，再檢查一下交換機的默認路由是否生效。uj5u.com熱心網友回復：
需要回程路由轉載請註明出處，本文鏈接：https://www.uj5u.com/qita/13669.html
標籤：交換及路由技術
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