RE: Natting problem...help!!! [7:66111]
??? There is no IP in the payload of an icmp echo or echo-reply packet so what would NAT modify? I'm gonna hafta lab this up and see it in action I suppose. One good thing about working Sundays... plenty o' time to play ;) Charles -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Behalf Of Scott Roberts Sent: Friday, March 28, 2003 2:01 PM To: [EMAIL PROTECTED] Subject: Re: Natting problem...help!!! [7:66111] I've never had to implement a dns change, but supposedly yes it does change the payload. there is only a few services where is does these payload changes though. another big one used to be ping, NATing modifies the payload of that also. scott ""Charles D Hammonds"" wrote in message news:[EMAIL PROTECTED] > from the below link: > > > Is that accurate??? The "ip nat outside source" command will translate the > IP in the PAYLOAD of the DNS reply packet even though it is not the > source??? doesn't sound right and I am unable to test it rite now... > > Charles > > -Original Message- > From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] > Sent: Tuesday, March 25, 2003 1:06 AM > To: [EMAIL PROTECTED] > Subject: RE: Natting problem...help!!! [7:66111] > > > You could get around this by doing a two way nat, or as cisco calls it, > nating for overlapping networks .. > > http://www.cisco.com/en/US/tech/tk648/tk361/technologies_configuration_examp > le09186a0080093f30.shtml > > JP wrote: > > > > I have the following scenario > > > > 0---0--telnet > > application > > network3network 1 network 2 > >lan wan link > > > > I need all hosts on network 3 to telnet to my "telnet > > application" > > Problem is network 3 and network 2 both have the same ip range. > > > > My question is the following: > > Is there any way i can perform natting to allow network 3 hosts > > to telnet to > > the application and use an ip address other than the one > > assigned to the > > application as the destination address??? > > > > Any ideas appreciated > > > > Thanks Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=66521&t=66111 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: Natting problem...help!!! [7:66111]
I've never had to implement a dns change, but supposedly yes it does change the payload. there is only a few services where is does these payload changes though. another big one used to be ping, NATing modifies the payload of that also. scott ""Charles D Hammonds"" wrote in message news:[EMAIL PROTECTED] > from the below link: > > > Is that accurate??? The "ip nat outside source" command will translate the > IP in the PAYLOAD of the DNS reply packet even though it is not the > source??? doesn't sound right and I am unable to test it rite now... > > Charles > > -Original Message- > From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] > Sent: Tuesday, March 25, 2003 1:06 AM > To: [EMAIL PROTECTED] > Subject: RE: Natting problem...help!!! [7:66111] > > > You could get around this by doing a two way nat, or as cisco calls it, > nating for overlapping networks .. > > http://www.cisco.com/en/US/tech/tk648/tk361/technologies_configuration_examp > le09186a0080093f30.shtml > > JP wrote: > > > > I have the following scenario > > > > 0---0--telnet > > application > > network3network 1 network 2 > >lan wan link > > > > I need all hosts on network 3 to telnet to my "telnet > > application" > > Problem is network 3 and network 2 both have the same ip range. > > > > My question is the following: > > Is there any way i can perform natting to allow network 3 hosts > > to telnet to > > the application and use an ip address other than the one > > assigned to the > > application as the destination address??? > > > > Any ideas appreciated > > > > Thanks Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=66406&t=66111 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: Natting problem...help!!! [7:66111]
from the below link: "...The inside device cannot use the IP address of the outside device because it is the same as the address assigned to itself (the inside device). Therefore, the inside device will send a DNS query for the outside device's domain name. The inside device's IP address will be the source of this query, and that address will be translated to an address from the "test-loop" pool because the ip nat inside source list command is configured. The DNS server replies to the address which came from the pool "test-loop" with the IP address associated with the outside device's domain name in the payload of the packet. The destination address of the reply packet is translated back to the inside device's address, and the address in the payload of the reply packet is then translated to an address from the pool "test-dns" because of the ip nat outside source list command. Therefore the inside device learns that the IP address for the outside device is one of the addresses from the "test-dns" pool, and it will use this address when communicating with the outside device. The router running NAT takes care of the translations at this point..." Is that accurate??? The "ip nat outside source" command will translate the IP in the PAYLOAD of the DNS reply packet even though it is not the source??? doesn't sound right and I am unable to test it rite now... Charles -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Sent: Tuesday, March 25, 2003 1:06 AM To: [EMAIL PROTECTED] Subject: RE: Natting problem...help!!! [7:66111] You could get around this by doing a two way nat, or as cisco calls it, nating for overlapping networks .. http://www.cisco.com/en/US/tech/tk648/tk361/technologies_configuration_examp le09186a0080093f30.shtml JP wrote: > > I have the following scenario > > 0---0--telnet > application > network3network 1 network 2 >lan wan link > > I need all hosts on network 3 to telnet to my "telnet > application" > Problem is network 3 and network 2 both have the same ip range. > > My question is the following: > Is there any way i can perform natting to allow network 3 hosts > to telnet to > the application and use an ip address other than the one > assigned to the > application as the destination address??? > > Any ideas appreciated > > Thanks Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=66215&t=66111 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: Natting problem...help!!! [7:66111]
You could get around this by doing a two way nat, or as cisco calls it, nating for overlapping networks .. http://www.cisco.com/en/US/tech/tk648/tk361/technologies_configuration_example09186a0080093f30.shtml JP wrote: > > I have the following scenario > > 0---0--telnet > application > network3network 1 network 2 >lan wan link > > I need all hosts on network 3 to telnet to my "telnet > application" > Problem is network 3 and network 2 both have the same ip range. > > My question is the following: > Is there any way i can perform natting to allow network 3 hosts > to telnet to > the application and use an ip address other than the one > assigned to the > application as the destination address??? > > Any ideas appreciated > > Thanks > > Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=66126&t=66111 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]