The startup scriptfor sipx checks to see if iptables is running, because it is automatically "problematic" if it is...
On Thu, Aug 19, 2010 at 11:14 PM, Michael Scheidell < [email protected]> wrote: > It just occurred to me that sipx on centos has iptables. maybe not > active, but its got it. > > can I use iptables, internally, without involving natting to do selective > port forwarding. > > example: > private ip address of 192.168.0.2 sipx.secnap.com. > public ip of ITSP: 4.2.2.2 > > I want to do something like this: > > if traffic comes in from source ip 4.2.2.2 to 192.168.0.2:5060 redirect > it to 192.168.0.2:5080 > (assuming that the original firewall did the natting. pretend here isn't > one) > > all other traffic to 192.168.0.2:5060 goes to 192.168.0.2:5080 > all traffic to 192.168.0.2:5080 goes to 192.168.0.2:5080. > > pretend I know lots about freebsd and ipfw and just tonight figures out how > to type 'iptables --list' > eg: tutor me. > I am thinking that if this can be done, it might make life easier for > people like me and mitchel who can't get the ITSP to send to port 5080. > > before I take m live phone system offline, look here, several paragraphs > down: > > <http://www.linuxquestions.org/questions/linux-networking-3/iptables-port-forwarding-599401/><http://www.linuxquestions.org/questions/linux-networking-3/iptables-port-forwarding-599401/> > > they do something like this: > > echo 1 > /proc/sys/net/ipv4/ip_forward > iptables -t nat -A PREROUTING -p tcp -s *route_only_for_this_ip* -d > *router_ip* --dport 80 -j DNAT --to *destination_ip*:*destination_port* > iptables -t nat -A POSTROUTING -o eth0 -d *destination_ip* -j SNAT > --to-source *router_ip* > > > so, echo 1 > /proc/sys/net/ipv4/ip_forward (might not be needed) > but > iptables -t nat -A PREROUTING -p tcp -s 4.2.2.2 -d localhost --dport 5060 > -j DNAT to localhost:5080 > > -- > Michael Scheidell, CTO > o: 561-999-5000 > d: 561-948-2259 > ISN: 1259*1300 > > *| *SECNAP Network Security Corporation > > - Certified SNORT Integrator > - 2008-9 Hot Company Award Winner, World Executive Alliance > - Five-Star Partner Program 2009, VARBusiness > - Best in Email Security,2010: Network Products Guide > - King of Spam Filters, SC Magazine 2008 > > > ------------------------------ > > This email has been scanned and certified safe by SpammerTrap®. > For Information please see http://www.secnap.com/products/spammertrap/ > ------------------------------ > > > _______________________________________________ > sipx-users mailing list > [email protected] > List Archive: http://list.sipfoundry.org/archive/sipx-users/ > -- ====================== Tony Graziano, Manager Telephone: 434.984.8430 sip: [email protected] Fax: 434.984.8431 Email: [email protected] LAN/Telephony/Security and Control Systems Helpdesk: Telephone: 434.984.8426 sip: [email protected] Fax: 434.984.8427 Helpdesk Contract Customers: http://www.myitdepartment.net/gethelp/ Why do mathematicians always confuse Halloween and Christmas? Because 31 Oct = 25 Dec.
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