About marelecnv

marelecnv · 07-09-2006

Dear,We have a 837 ADSL router, but are unable to make our DNS server accesible from the outsidewe have following NAT static entry:ip nat inside source static udp 192.168.0.253 53 213.49.131.61 53 extendableAll query's reach our server as expected, b...

marelecnv · 07-07-2006

Dear,We have a HTTP, FTP, SMTP and a DNS server set up behand a 837 router with nat enabled. Everything except the DNS server is working ok. The configuration is in attachmentIf I change the nat for port 53 to port 5353 local (and reconfigure the dns...

marelecnv · 07-13-2006

Problem solvedThere has to be a 1-1 NAT rule in the configuration: ip nat inside source static 192.168.0.253 213.49.131.61 Only forwarding port 53 UDP and TCP doesn't work. AND The DNS server must be configured to supply A records with the local IP a...

marelecnv · 07-13-2006

Thaks for your response, but no, that is not the problem.I've solved the problem yesterday.There has to be a 1-1 NAT rule in the configuration:ip nat inside source static 192.168.0.253 213.49.131.61Only forwarding port 53 UDP and TCP doesn't work.AND...

marelecnv · 07-10-2006

i've changed the access-list toaccess-list 112 permit ip any anybut it still doesn't work. (as I expected as packets with a source address of 192.168.0.253 are unroutable through the internet as this is a reserved address)The problem is with the NAT....

marelecnv · 07-10-2006

Yes,both UDP and TCP port 53 are translated (and port 53 TCP works fine, 53 UDP not)ip nat inside source static tcp 192.168.0.253 53 213.49.131.61 53 extendableip nat inside source static udp 192.168.0.253 53 213.49.131.61 53 extendableI've done some...

Member Since	‎07-07-2006 03:30 AM
Date Last Visited	‎08-18-2017 03:53 AM
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DNS server behind NAT router is inaccesible

Problem with DNS server behind a 837 router with NAT

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