[SOLVED] LAN-2-LAN IPsec stablished, but can not ping remote lan computers

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[SOLVED] LAN-2-LAN IPsec stablished, but can not ping remote lan computers

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Re:[SOLVED] LAN-2-LAN IPsec stablished, but can not ping remote lan computers
2017-04-28 16:43:04 - last edited 2021-04-18 10:47:41
Well, I have to say that all seems to be working. I can access services from both sides of VLAN without problems. However I still can not reach any computer by means of ping, neither traceroute. I can't understand why ping and traceroute are not working properly. As I said, I can access samba shares, web servers, and so others services. I don't know why is this happening.

Thanks everybody for comments and help.
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#12
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Re:[SOLVED] LAN-2-LAN IPsec stablished, but can not ping remote lan computers
2017-05-26 11:25:55 - last edited 2021-04-18 10:47:41
you must check the option "Use default gateway on remote network".
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#13
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Re:[SOLVED] LAN-2-LAN IPsec stablished, but can not ping remote lan computers
2017-06-19 16:53:25 - last edited 2021-04-18 10:47:41
check the option "Use default gateway on remote network"
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#14
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Re:[SOLVED] LAN-2-LAN IPsec stablished, but can not ping remote lan computers
2019-12-28 10:31:32 - last edited 2021-04-18 10:47:41

@malaguna I live the same problem, I wonder if I can solve.
ipsec vpn is active on both sides, but when I want to ping the PC to eat Request timed out. I get an error.
please help me.

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#15
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Re:[SOLVED] LAN-2-LAN IPsec stablished, but can not ping remote lan computers
2019-12-30 01:38:21 - last edited 2021-04-18 10:47:41

@muhce 

 

Check if there are IPsec entries in IPsec SA list. It's for confirming IPsec VPN has been established.

And make sure you have used the latest firmware for your router.

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#16
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Re:[SOLVED] LAN-2-LAN IPsec stablished, but can not ping remote lan computers
2020-01-13 14:31:54 - last edited 2021-04-18 10:47:41

I don't understand why people are posting about default gateway. That's a network adapter setting in windows. 

Like really, did you even read the post. Do you even know what IPSec is? Jesus... Infuriating.  

 

So I have the same problem.

However I believe the problem is that the router is NAT'd. Double nat'd that is. You cannot put this device behind a NAT, and expect the tunnel to complete fully. 

Sure it can communicate, but the other side cannot. Because it's behind a NAT. You cannot expect outside entities to reach through your top-level router and touch your IPSec router, not without some configuration (forwarding for ipsec:  AH 51, TCP && UDP 500, ESP 50, udp 4500).

 

I'm testing that theory now and will report back within a day or two. If I'm right, then simply exposing the router to the public WAN of the world does the job for this exact issue.

And yes, my IPSec SA listing shows a successfull connection just like you. But zero ping success. It doesn't hop across the tunnel, stops at the vpn router gateway. 

Diagnostics tab has a ping utility, and it too cannot reach the other network devices. 

 

I suspect reviewing logs on the other device would reveal the cause (failure to communicate)

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#17
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Re:[SOLVED] LAN-2-LAN IPsec stablished, but can not ping remote lan computers
2020-01-24 20:45:03 - last edited 2021-04-18 10:47:41

@malaguna 

 

Disable windows firewall in both sides and try to ping again

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#18
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Re:[SOLVED] LAN-2-LAN IPsec stablished, but can not ping remote lan computers
2020-07-23 22:02:06 - last edited 2021-04-18 10:47:41

@malaguna Check your VPN IP pool make sure there is no Ip confilct between Lan IP and VPN IP pool
Go to VPN, L2TP/PPP. Select tab IP Address Pool.
Best practice here is to assignd your Lan DCHP ex: 192.168.1.10 through 192.168.1.200
VPN IP pool 192.168.1.201 through 192.168.1.210
Double check and make sure no devices in either lan had beein assigned manaully with a static ip from your VPN IP pool

 

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#19
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Re:[SOLVED] LAN-2-LAN IPsec stablished, but can not ping remote lan computers
2020-10-23 18:00:24 - last edited 2021-04-18 10:47:41
I'm also facing this problem, after being beaten and a lot to get the tunnel to work, now I can't see the network from both sides, I have already disabled load balancing, bandwidth control and firewall and nothing. Were you able to solve the problem?
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#20
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