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Wed, 09 Dec 2020 06:35:45 -0800 (PST) MIME-Version: 1.0 Received: by 2002:a05:651c:2011:0:0:0:0 with HTTP; Wed, 9 Dec 2020 06:35:44 -0800 (PST) In-Reply-To: <16074972350.fF34.73931@composer.9fans.topicbox.com> References: <16073224010.Cc413b.250465@composer.9fans.topicbox.com> <4d912a98-b0b1-476f-b306-491d91d2bf79@www.fastmail.com> <16074740400.63F6dbAdf.71435@composer.9fans.topicbox.com> <16074972350.fF34.73931@composer.9fans.topicbox.com> From: Lucio De Re Date: Wed, 9 Dec 2020 16:35:44 +0200 Message-ID: Subject: Re: [9fans] Raw ethernet on 9vx To: 9fans <9fans@9fans.net> Content-Type: text/plain; charset="UTF-8" Topicbox-Policy-Reasoning: allow: sender is a member Topicbox-Message-UUID: d64d64b6-3a2b-11eb-a0c7-88bb00e8c7d0 Archived-At: =?UTF-8?B?PGh0dHBzOi8vOWZhbnMudG9waWNib3guY29tL2dyb3Vwcy85?= =?UTF-8?B?ZmFucy9UODRiNDQ5MmY5MWYyYWJiNi1NNzdmOGUyMTBiN2U5ZTJhOWZiYmYy?= =?UTF-8?B?ZTJkPg==?= List-Help: List-Id: "9fans" <9fans.9fans.net> List-Post: List-Software: Topicbox v0 List-Subscribe: Precedence: list Reply-To: 9fans <9fans@9fans.net> Content-Transfer-Encoding: quoted-printable List-Unsubscribe: , Topicbox-Delivery-ID: 2:9fans:437d30aa-c441-11e9-8a57-d036212d11b0:522be890-2105-11eb-b15e-8d699134e1fa:M77f8e210b7e9e2a9fbbf2e2d:1:4QeELeUWP-8AbEcGOn5G9XCo6qvg0mrcBveDF7B3ksY On 12/9/20, remywang@cs.washington.edu wrote: > > [ ... ] You're brave! > And several details: > 1. I had to hard-code the tap device name "tap5" because `ip tuntap ...` > doesn't return the interface name. > 2. I have no idea what 0.0.0.0 is, or where to pass it in. (tried `ip link > set tap5 up address 0.0.0.0` but it complained the address was too short). > Even if the interface name is not returned (which usually means the powers that be have found a more sensible, but totally novel way to make it available), you should really set iface=3Dtap5 or even export iface=3Dtap5 and save a lot of editing later. If "0.0.0.0" is too short, the chances are "0.0.0.0/0" may be the valid for= m. 0.0.0.0[/0] is more a place holder (a bit like NULL) than a real IP address. That said, I am still trying to get my head around creating tap devices for VMs, in the new lingo (or in the old) even though my TCP/IP experience goes back to 1990. But then I think the RFCs at that stage were still below one thousand. Lucio. ------------------------------------------ 9fans: 9fans Permalink: https://9fans.topicbox.com/groups/9fans/T84b4492f91f2abb6-M77f8e= 210b7e9e2a9fbbf2e2d Delivery options: https://9fans.topicbox.com/groups/9fans/subscription