Search found 4 matches

by user12345
2019/08/01 12:30:39
Forum: CentOS 7 - Networking Support
Topic: Firewall Rules not allowing VPN Traffic to pass through
Replies: 7
Views: 3359

Re: Firewall Rules not allowing VPN Traffic to pass through

Great explanation. I have understood much better in terms of NAT concepts. iptables -S FORWARD -P FORWARD ACCEPT -A FORWARD -d 192.168.122.0/24 -o virbr0 -m conntrack --ctstate RELATED,ESTABLISHED -j ACCEPT -A FORWARD -s 192.168.122.0/24 -i virbr0 -j ACCEPT -A FORWARD -i virbr0 -o virbr0 -j ACCEPT -...
by user12345
2019/07/31 12:38:24
Forum: CentOS 7 - Networking Support
Topic: Firewall Rules not allowing VPN Traffic to pass through
Replies: 7
Views: 3359

Re: Firewall Rules not allowing VPN Traffic to pass through

Hey man, thanks for your detailed explanation! Now I have a better understanding of how Iptables works, with regards to effectively using it to tell whether traffic is being passed through. With your help, I think I have isolated the problem to be the masquerading option set for the ens33 and ens37 ...
by user12345
2019/07/31 02:42:34
Forum: CentOS 7 - Networking Support
Topic: Firewall Rules not allowing VPN Traffic to pass through
Replies: 7
Views: 3359

Re: Firewall Rules not allowing VPN Traffic to pass through

Hi, thanks for your help. Unfortunately, I am not understanding what you have meant. I presume that as long as there are routes configured on the server to route packets from one router to another, then it should be fine? Pardon as I have little experience with iptables. Another thing is that I am u...
by user12345
2019/07/30 13:01:31
Forum: CentOS 7 - Networking Support
Topic: Firewall Rules not allowing VPN Traffic to pass through
Replies: 7
Views: 3359

Firewall Rules not allowing VPN Traffic to pass through

Hi all, would need some help. I have a CentOS 7 Server sitting between two cisco routers. Between these routers is a site-to-site VPN connection, and CentOS 7 is configured as a router to forward/route packets from one end of the router to the other. However, when I try to ping from one end to anoth...

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