08-31-2012 10:17 AM - edited 03-04-2019 05:26 PM
Hi.
I have cisco router 2911 (Cisco IOS Software, C2900 Software (C2900-UNIVERSALK9-M), Version 15.2(3)T, RELEASE SOFTWARE (fc1)
In local nework i have public DNS server with our domain,
On the cisco router i have
ip nat inside source static tcp 192.168.10.2 53 ISP_IP 53 extendable
ip nat inside source static udp 192.168.10.2 53 ISP_IP 53 extendable
I turn off any firewalls on both sides and on DNS server. But when i try to resolve my dns zone on my server from outside I have connection time out.
In the local network anything is worked.
tcpdump on server show that request packet to the server arrived. And i see response on this server interface.
So i don't understant what i need to do?
08-31-2012 10:58 AM
May be I make questiion incorrect. But in my local network anythink is workin. i needs make posible dns quires from outside to inside. Because my dns server is NS for my internet domain.
I
08-31-2012 11:04 AM
YEEES. I Found IT!!!
ip nat inside source static tcp 192.168.10.2 53 ISP_IP 53 extendable no-payload
ip nat inside source static udp 192.168.10.2 53 ISP_IP 53 extendable no-payload
And anythig worked!!!!
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