Dear Ian, thanks for clarifications. Regulator in India mandated to preserve the following details for each flow. 1. Source IP + Port (private for end subscriber device) 2. Destination IP + Port (public) 3. Translated IP + port (public) 4. Date and time
There is no brainer and all this is available in NAT44. MAP being stateless, no such data available from MAP-BR. We are exploring alternate option on BR to create this data in MAP. Pls advise. Regds ramesh -----Original Message----- From: [email protected] [mailto:[email protected]] Sent: 04 May 2018 17:28 To: Rajiv Asati (rajiva) Cc: Softwires-wg list; [email protected]; Ramesh R Chandra Subject: Re: [Softwires] ISP CGN logging inc. Destination ?? Hi Rajiv, Please see inline. Cheers, Ian > On 4. May 2018, at 12:01, Rajiv Asati (rajiva) <[email protected]> wrote: > > Ian, > > Thanks for sharing the URL. While not explicit, “all metadata” would include > both source and destination A+P. Is that the right interpretation? [if - My understanding is that per-flow logging is necessary to meet the requirement, but I’m not familiar enough with the legislation to know what exactly needs to be stored.] > > If an ISP were to use “binding” mode on the BR, then without using net > flow/IPFIX, How could the compliance be achieved ? [if - If there’s address sharing and the requirement is to provide an exact match to a data retention request (in some countries, a list of e.g. 16 users is OK), then AFAICS, you have to use IPFIX. The implementation problem for this is compounded by the lack of state table on most BR implementations (e.g. how do you know when a UDP session has completed without state for that flow?)] "Confidentiality Warning: This message and any attachments are intended only for the use of the intended recipient(s). are confidential and may be privileged. If you are not the intended recipient. you are hereby notified that any review. re-transmission. conversion to hard copy. copying. circulation or other use of this message and any attachments is strictly prohibited. If you are not the intended recipient. please notify the sender immediately by return email. and delete this message and any attachments from your system. Virus Warning: Although the company has taken reasonable precautions to ensure no viruses are present in this email. The company cannot accept responsibility for any loss or damage arising from the use of this email or attachment." _______________________________________________ Softwires mailing list [email protected] https://www.ietf.org/mailman/listinfo/softwires
