Date: Wed, 20 Feb 2013 15:43:43 +0100 From: Matthias Apitz <guru@unixarea.de> To: freebsd-questions@freebsd.org Subject: Re: cannot ssh into a box with DHCP assigned IP address Message-ID: <20130220144343.GA9073@tiny.Sisis.de> In-Reply-To: <685C610D-D19A-46FE-851F-3A00EACF3AE3@my.gd> References: <201302201355.r1KDt8Lt063091@mech-cluster241.men.bris.ac.uk> <685C610D-D19A-46FE-851F-3A00EACF3AE3@my.gd>
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El día Wednesday, February 20, 2013 a las 03:18:47PM +0100, Fleuriot Damien escribió: > > Well.. what should it be? > > I have on the problem box (ssh server): > > > > wlan0: flags=8943<UP,BROADCAST,RUNNING,PROMISC,SIMPLEX,MULTICAST> metric 0 mtu 1 > > 500 > > ether 00:21:5c:50:68:c3 > > inet 172.21.220.12 netmask 0xfffffc00 broadcast 255.255.255.255 > > nd6 options=29<PERFORMNUD,IFDISABLED,AUTO_LINKLOCAL> > > media: IEEE 802.11 Wireless Ethernet OFDM/54Mbps mode 11g > > status: associated > > ssid eduroam channel 1 (2412 MHz 11g) bssid 00:3a:98:62:cd:a0 > > country US authmode WPA2/802.11i privacy ON deftxkey UNDEF > > AES-CCM 2:128-bit AES-CCM 3:128-bit txpower 14 bmiss 10 scanvalid 450 > > bgscan bgscanintvl 300 bgscanidle 250 roam:rssi 7 roam:rate 5 > > protmode CTS wme roaming MANUAL > > > > I'm trying to ssh from 137.222.187.241. The class B network 172.16.0.0 to 172.31.255.255 is not routed in Internet (see RFC1918). This is a so called "private addr" you get from your Access Point. It is hided by the AP (or by some other router more far away) behind a real IP addr. You can check what this addr is by going to the page http://myip.nl/ And you can not SSH to the addr shown there, at least normally it would not be NAT'ed to your addr you got by DHCP. No way. matthias -- Sent from my FreeBSD netbook Matthias Apitz | - No system with backdoors like Apple/Android E-mail: guru@unixarea.de | - No HTML/RTF in E-mail WWW: http://www.unixarea.de/ | - No proprietary attachments phone: +49-170-4527211 | - Respect for open standards
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