现场组网比较规范是IPv4 Full-Mesh的组网,HUB和server是同一台设备(MSR3640),spoke是一台设备(防火墙F1000-AK135)server连接运营商专线和HUB建立ADVPN。
1.两边隧道建立不起来,HUB和spoke设备也没有注册上
2.看不到VAM Client的IPv4私网地址映射信息
1、首先检查两边设备配置,ADVPN实际上也是建立IPsec VPN隧道,检查发现配置中存在问题
(1)spoke中下面的地址
interface Tunnel1 mode advpn gre
ip address 172.32.254.9 255.255.255.0 检查发现这个地址不在server设备上Hub组内Spoke的IPv4私网地址范围,正常是要在这个范围内
server中的配置
vam server advpn-domain mem id 1
pre-shared-key cipher $c$3$qtHxMApstPa0BpKt51BUDS5B+tFoSg==
server enable hub-group 0
hub private-address 172.32.254.10
spoke private-address range 172.31.254.0 172.35.254.255
(2)HUB设备上IPv4 ADVPN隧道接口Tunnel1配置错误
interface Tunnel1 mode advpn gre
ip address 172.32.254.10 255.255.255.0 //要和server中Hub组内的Hub IPv4私网地址一致
ospf network-type broadcast
source GigabitEthernet1/4/3
tunnel protection ipsec profile dvpn
vam client mem
(3)终端不结合服务器,在设备本地认证,这个需要HUB的用户名和SPOKE不能配置成一样的。domain域按照下面配置即可,如果是结合AAA服务器认证,就严格按照官网配置。
domain mem
authentication advpn local none
accounting advpn local none
(4)OSPF中发布的配置要包含私网地址信息
ospf 2
area 0.0.0.0
network 172.32.254.0 0.0.0.255
1、按照如上检查修改配置后,HUB和SPOKE可以正常注册上线,也可以看到私网地址信息,隧道也可以正常建立。
[SERVER] display vam server address-map
ADVPN domain name: mem
Total private address mappings: 2
Group Private address Public address Type NAT Holding time
0 172.32.254.9 124.126.16.130 Spoke No 0H 14M 7S
0 172.32.254.10 124.65.137.178 Hub No 0H 15M 22S
[SERVER]ping 172.32.254.9 (在server上ping spoke设备地址)
Ping 172.32.254.9 (172.32.254.9): 56 data bytes, press CTRL+C to break
56 bytes from 172.32.254.9: icmp_seq=0 ttl=255 time=4.575 ms
56 bytes from 172.32.254.9: icmp_seq=1 ttl=255 time=4.435 ms
56 bytes from 172.32.254.9: icmp_seq=2 ttl=255 time=4.343 ms
56 bytes from 172.32.254.9: icmp_seq=3 ttl=255 time=4.269 ms
56 bytes from 172.32.254.9: icmp_seq=4 ttl=255 time=4.288 ms
--- Ping statistics for 172.32.254.9 ---
5 packet(s) transmitted, 5 packet(s) received, 0.0% packet loss
round-trip min/avg/max/std-dev = 4.269/4.382/4.575/0.112 ms
[SERVER]dis ipsec sa
-------------------------------
Interface: Tunnel1
------------------------------
IPsec profile: dvpn
Mode: ISAKMP
-----------------------------
Tunnel id: 0
Encapsulation mode: transport
Perfect forward secrecy:
Path MTU: 1404
Tunnel:
local address: 124.65.137.178
remote address: 124.126.16.130
Flow:
sour addr: 124.65.137.178/255.255.255.255 port: 0 protocol: gre
dest addr: 124.126.16.130/255.255.255.255 port: 0 protocol: gre
[Inbound ESP SAs]
SPI: 2965272858 (0xb0be791a)
Connection ID: 4294967296
Transform set: ESP-ENCRYPT-DES-CBC ESP-AUTH-SHA1
SA duration (kilobytes/sec): 1843200/3600
SA remaining duration (kilobytes/sec): 1843187/2244
Max received sequence-number: 160
Anti-replay check enable: Y
Anti-replay window size: 64
UDP encapsulation used for NAT traversal: N
Status: Active
[Outbound ESP SAs]
SPI: 3922642703 (0xe9cec70f)
Connection ID: 4294967297
Transform set: ESP-ENCRYPT-DES-CBC ESP-AUTH-SHA1
SA duration (kilobytes/sec): 1843200/3600
SA remaining duration (kilobytes/sec): 1843186/2244
Max sent sequence-number: 159
UDP encapsulation used for NAT traversal: N
Status: Active
[SERVER]dis ike sa
Connection-ID Local Remote Flag DOI
-------------------------------------------------------------------------
9 124.65.137.178 124.126.16.130 RD IPsec