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Date:      Wed, 9 Dec 2009 21:01:46 +0200 (EET)
From:      Mario Pavlov <freebsd@abv.bg>
To:        freebsd-stable@freebsd.org, freebsd-current@freebsd.org
Subject:   proxy arp and MPD in RELENG_8
Message-ID:  <1005992950.59541.1260385306946.JavaMail.apache@mail53.abv.bg>
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 Hi,
some time ago I noticed that there's a problem with the new arp implementation - proxy arp was somehow not working when mpd is involved. I decided to try this out again assuming it was fixed for the release...unfortunately the problem is still there...
Here are the last few lines of the mpd output:


[B-1] IPCP: state change Ack-Rcvd --> Opened
[B-1] IPCP: LayerUp
[B-1]   192.168.10.1 -> 192.168.10.50
[B-1] IFACE: Connecting tcpmssfix
[B-1] IFACE: Add address 192.168.10.1/32->192.168.10.50 to ng0
[B-1] exec: /usr/sbin/arp -S 192.168.10.50 0:e0:28:62:e:9 pub
[B-1] system: command "/usr/sbin/arp" returned 256
[B-1] IFACE: Up event
[B-1] IFACE: idle-timeout: 1800 seconds
[B-1] IFACE: Change interface flags: -0 +1


there this is mpd.conf:


startup:

default:
        load pptp_server

pptp_server:

        set ippool add pool1 192.168.10.50 192.168.10.99

        create bundle template B
        set iface enable proxy-arp
        log +iface2
        set iface idle 1800
        set iface enable tcpmssfix
        set ipcp yes vjcomp
        set ipcp ranges 192.168.10.1/32 ippool pool1
        set ipcp dns 192.168.10.1
        set bundle enable compression
        set ccp yes mppc
        set mppc yes e40
        set mppc yes e128
        set mppc yes stateless

        create link template L pptp
        set link action bundle B
        set link enable multilink
        set link yes acfcomp protocomp
        set link no pap chap
        set link enable chap
        set link keep-alive 10 60
        set link mtu 1460
        set pptp self pub.ip.add.res
        set link enable incoming


this is probably the most common VPN setup and it was working fine with 7.2-STABLE but after I upgraded to 8-STABLE it broke up...
Is there a workaround or a plan to fix this? Or should I just go back to RELENG_7?

thank you.

P.S. this is discussed in the forums as well: http://forums.freebsd.org/showthread.php?t=8427

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