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Date: Sat, 14 Jul 2001 16:52:50 -0400 (EDT)
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Subject: kern/28974: PPPoE software fails when SOCK_RAW employed
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>Number:         28974
>Category:       kern
>Synopsis:       PPPoE software fails when SOCK_RAW employed
>Confidential:   no
>Severity:       critical
>Priority:       high
>Responsible:    freebsd-bugs
>State:          open
>Quarter:        
>Keywords:       
>Date-Required:
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Sat Jul 14 14:00:02 PDT 2001
>Closed-Date:
>Last-Modified:
>Originator:     Charlie & brad@brad-x.com
>Release:        FreeBSD 4.3-STABLE i386
>Organization:
brad-x.com
>Environment:
System: FreeBSD TMA-1.brad-x.com 4.3-STABLE FreeBSD 4.3-STABLE #0: Sat Jul 14 05:01:28 EDT 2001 root@TMA-1.brad-x.com:/usr/src/sys/compile/DISCOVERY-IPF i386

ng_pppoe loaded - connected using Bell Sympatico DSL

>Description:

Explicit attempt to generate ICMP from this system fails with SIOCGIFADDR: failed to assign requested address. Any other program
attempting to generate packets using the raw protocol interface similarly bail out. Naturally, all other machines on the LAN are unaffected, and this appears to impact command line issued programs (there are no servers I've seen that employ SOCK_RAW).





>How-To-Repeat:
	From a machine connected to the internet via PPPoE: - ifconfig tun0, get it's IP
	
	hping <ip of the tun0 interface>
	hping <ip of any host passing through tun0>

	nmap <ip of the tun0 interface>
	nmap <any host passing through tun0>
	

>Fix:

None known.
>Release-Note:
>Audit-Trail:
>Unformatted:

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