I have a site2site vpn with GRE tunneling between main office (Cisco2811)and a remote office (Cisco1841).
All the configurations are standart and similar, I used the examples on this site...
I have main mail server in main office, and a 2nd mail sever (wich is also a DNS-server, DHCP-server, domain controller)in the Remote office. These two severs must communicate with each other, replicate their databases and so on...
I use port address translation in both Remote an Main office.
I also use some static NAT statements for the server in the Main office.
The problem is that I can ping all the devices through the VPN tunnel in every direction, except ping from Main Office to the 2nd sever in Remote Office!!
Plese, help with some wise advice =)
PS: I also have another issue with tunnel between this sites. In case of any failure (for example, reboot due to power failure) the tunnel between these sites establishes for 3-4 hours!!
I have another pair of VPN routers, and tunnel between them is established within some seconds...
Hm... there was one string in the Remote router config... Static nat, that allowed to connect to remote server by RDP using external router address... I realized that NAT occures BEFORE ipsec encapsulation... and deleted those string... The server was reachable again after 20 minutes.
(by the way, HOW could RDP mapping influence ping to server?.. )
Login to the FXOS chassis manager.
Direct your browser to https://hostname/, and log-in using the user-name and password.
Go to Help > About and check the current version:
Check the current version availa...
We have configured the outside and inside Interface with official ipv6 adresses, set a default route on outside Interface to our router, we also have definied a rule , which also gets hits, to permit tcp from inside Interface to any6.
In Syslog I also se...