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Date:      Sat, 13 Oct 2001 14:01:57 -0400
From:      "luca ferrara" <oolyakoo@hotmail.com>
To:        freebsd-questions@FreeBSD.ORG
Subject:   routed broken interface
Message-ID:  <F185gFzp2jjh6q6Kw3y000078c6@hotmail.com>
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### (OS: FreeBSD 4.2-RELESE, i686)

  Thanks to those who will care


### Often the net seems to shut down completely, even a ping to a computer 
on the same ethernet lan does't work
### (localhost stands for my ip address throughout the text):

    [.......]#ping OTHERHOST
    PING localhost (localhost): 56 data bytes

    (no output)
    ^C
    [......]#

### I guess it must have some to do with the following routed complaints:
    [...]
    routed[122]: rdisc length 492 does not match ad_num 1
    routed[122]: interface ed1 to localhost broken: in=1 ierr=15 out=0 
oerr=0
    routed[122]: interface ed1 to localhost restored
    # What is 224.0.0.2 anyway !!!!!
    routed[122]: sendto(ed1, 224.0.0.2): Permission denied
    routed[122]: interface ed1 to localhost broken: in=342 ierr=414 out=24 
oerr=0
    routed[122]: interface ed1 to localhost restored
    routed[122]: sendto(ed1, 224.0.0.2): Permission denied
    routed[98]: rdisc length 492 does not match ad_num 1
    # What is 195.223.76.41 anyway !!!!!
    routed[232]: write(rt_sock) RTM_ADD 0.0.0.0 -->195.223.76.41 metric=1 
flags=0x2: File exists
    [...]

### routed is launched at boot as:
    routed -q

### netstat -r shows:
    Routing tables

    Internet:
    Destination        Gateway            Flags     Refs     Use     Netif 
Expire
    default            gate               UGSc        2        3      ed1
    localhost          localhost          UH          0        0      lo0
    # What is 193.193.64&0xe1e1e anyway !!!!!
    193.193.64&0xe1e1e link#1             UCc         0        0      ed1 =>
    gate               [gate eth address] UHLW        2       29      ed1   
1198
    localhost          [loc eth address]  UHLW        0        2      lo0

    Internet:
    Destination        Gateway            Flags     Refs     Use     Netif 
Expire
    default            gate               UGSc        2        3      ed1
    localhost          localhost          UH          0        0      lo0
    # What is 193.193.64&0xe1e1e anyway !!!!!
    193.193.64&0xe1e1e link#1             UCc         0        0      ed1 =>
    gate               [gate eth address] UHLW        2       29      ed1   
1199
    localhost          [loc eth address]  UHLW        0        2      lo0

### if that might be of any relevance, here's /etc/rc.firewall:
    [...]
    ${fwcmd} = ipfw -q

    # Flush
    ${fwcmd} -f flush

    # lo0
    ${fwcmd} add 100 pass all from any to any via lo0
    ${fwcmd} add 200 deny all from any to 127.0.0.0/8

    # Allow any traffic to or from my own net.
    ${fwcmd} add pass all from localhost to localhost/24
    ${fwcmd} add pass all from localhost/24 to localhost

    # Allow TCP through if setup succeeded
    ${fwcmd} add pass tcp from any to any established

    # Allow IP fragments to pass through
    ${fwcmd} add pass all from any to any frag

    # Allow setup of outgoing TCP connections only
    ${fwcmd} add pass tcp from localhost to any setup

    # Disallow setup of all other TCP connections
    ${fwcmd} add deny tcp from any to any setup

    # Allow DNS queries out in the world
    ${fwcmd} add pass udp from any 53 to localhost
    ${fwcmd} add pass udp from localhost to any 53
    [...]


###
    Thank you for having cared
                    luca
###


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