Skip to main content

All Questions

Tagged with
Filter by
Sorted by
Tagged with
0 votes
1 answer
3k views

How can I create an IPsec tunnel between a FritzBox and a pfsense, without using Aggressive Mode?

I've successfully created an IPSEC Tunnel between my local FritzBox 7590 and my office, which is running a pfsense hardware firewall (APU2) with pfsense 2.4.5-RELEASE-p1 and coreboot firmware v4.11.0....
Alex's user avatar
  • 151
1 vote
0 answers
35 views

Is it possible to skip main mode for IPSec communication on Windows?

On Linux, after registered several SAs (Security Associations) between a pair of Linux host, I can create communication between those two Linux hosts, i.e, communicate with ESP packets. But on ...
gzh's user avatar
  • 111
0 votes
1 answer
3k views

IKEV2 tunnel not getting created

Getting bellow error message while trying to ping. Feb 12 17:51:11.383 IST: IKEv2-INTERNAL:Processing an item off the pak queue Feb 12 17:51:11.384 IST: IKEv2-INTERNAL:Couldn't find matching ...
Chiranjib Goswami's user avatar
0 votes
1 answer
2k views

Required ICMP types for IPSec tunnel?

I have IPSec tunnel set up between 2 routers. It used to work fine, however recently I hardened policy in IDS and I started getting alerts about ICMP type 11 code 1 being sent from one router to ...
Lapsio's user avatar
  • 820
0 votes
1 answer
84 views

How does IPsec operate in NAT environment?

I know that if you mess with IPsec header it will drop the packet and NAT is build exactly for that. How do they deploy IPsec where NAT is also needed.
Youbecks003's user avatar
0 votes
1 answer
327 views

Can I run a VPN server with certificates only, and no password/pre-shared keys?

I've seen several writeups around discussing VPN server configuration. In all of them, there are 2 or 3 pre-shared keys / passwords used at various levels of the tunnel -- one for IPSec, one for L2TP,...
James B's user avatar
  • 533
1 vote
1 answer
2k views

Private IP address over IPSEC tunnel

I have two dedicated servers that I have configured to require AH and ESP between their (public) IP addresses and using racoon I've set up isakmp. The IPsec tunnel between them is working well - I ...
Jeremy Thomerson's user avatar