ipf Kernel Panic log.. w/ Vonage linksys RT31P2, 5.4 Stable, IPF + IPNAT

[Vladimir Botka]

Hello,
if your "Vonage linksys RT31P2" talks H323 try /usr/ports/net/gatekeeper 
in proxy mode.

Cheers,
Vladimir Botka

On Sun, 12 Jun 2005, Damon Hopkins wrote:

> I can reproduce this very easily.. I pick up my phone and make a call
> Current Setup
> <Cable Modem>---<FreeBSD 5.4 Stable>---<HUB>--<Machines>
>                                         \------<Vonage Linksys RT31P2>
>
> I've tried various nap rules and ipf filter settings.. here are the
> current mappings and setup.. the kernel is GENERIC w/ the debuggong
> stuff put in it.
> ---------------- IPNAT RULES --------------------
> map vr0 10.69.0.0/24 -> 0/32 proxy port ftp ftp/tcp
> map vr0 10.69.0.0/24 -> 0/32
>
> ----------------- IPF RULES ---------------------
> pass in quick on lo0 proto tcp from any to any flags S keep state
> pass in quick on lo0 proto udp from any to any keep state
> pass in quick on lo0 proto icmp from any to any keep state
> pass in quick on lo0 all keep state
> pass out quick on lo0 proto tcp from any to any flags S keep state
> pass out quick on lo0 proto udp from any to any keep state
> pass out quick on lo0 proto icmp from any to any keep state
> pass out quick on lo0 all keep state
>
> pass in quick on rl0 proto tcp from any to any flags S keep state
> pass in log first quick on rl0 proto udp from any to any keep state
> pass in log first quick on rl0 proto icmp from any to any keep state keep 
> frags
> pass in quick on rl0 all keep state
> pass out quick on rl0 proto tcp from any to any flags S keep state
> pass out log first quick on rl0 proto udp from any to any keep state
> pass out log first quick on rl0 proto icmp from any to any keep state
> keep frags
> pass out quick on rl0 all keep state
>
> pass in quick on vr0 proto tcp from any to any flags S keep state keep frags
> pass in quick on vr0 proto udp from any to any keep state keep frags
> pass in log first quick on vr0 proto icmp from any to any keep state
> keep frags
> pass in quick on vr0 all keep state keep frags
> pass out quick on vr0 proto tcp from any to any flags S keep state keep
> frags
> pass out quick on vr0 proto udp from any to any keep state keep frags
> pass out log first quick on vr0 proto icmp from any to any keep state
> keep frags
> pass out quick on vr0 all keep state keep frags
>
> pass in quick on ng0 proto tcp from any to any flags S keep state
> pass in quick on ng0 proto udp from any to any keep state
> pass in log first quick on ng0 proto icmp from any to any keep state
> pass in quick on ng0 all keep state
> pass out quick on ng0 proto tcp from any to any flags S keep state
> pass out quick on ng0 proto udp from any to any keep state
> pass out log first quick on ng0 proto icmp from any to any keep state
> pass out quick on ng0 all keep state
>
> <SNIP> MORE ng rules form my other VPNS </SNIP>
> I've also just tried to pass everything
> pass in quick on vr0 all
> pass out quick on vr0 all
>
> but that didn't help any
>
> I've notices a lot of UDP traffic from the linksys adapter durring a phone 
> call..
>
> Thanks Guys.. I hope this gets fixes real fast cause my old number goes away 
> in a few days and this is not going to be fun.. I can't put the linksys 
> adapter in front of the firewall because it doesn't route my VPN's.. we use 
> MPD and bgpd (zebra)
>
>
> Later,
> Damon Hopkins
>
> ------------- DEBUG OUTPUT ----------------------
> Fatal trap 12: page fault while in kernel mode
> fault virtual address	= 0xc
> fault code		= supervisor read, page not present
> instruction pointer	= 0x8:0xc0651550
> stack pointer		= 0x10:0xd3d46aec
> frame pointer		= 0x10:0xd3d46af8
> code segment		= base 0x0, limit 0xfffffm type 0x1b
> 			= DPL 0, pres 1, def32 1, gran 1
> processor eflags	= interrupt enabled, resume, IOPL = 0
> current process		= 27 (swi1:net)
> [thread pid 27 tid 100021 ]
> Stopped at m_copydata+0x28:	movl	0xc(%esi),%eax
> db> examine
> m_copydata+0x28:	290c468b
> db> trace
> Tracing pid 27 tid 100021 td 0xc15a4180
> mcopydata(c17fa400,0,38,c193abc0,0) at m_copydata+0x28
> ipllog(0,d3d46bc8,d3d46b50,d3d46b48,d3d46b40) at ipllog+0x1f1
> ipflog(105819,c17fa450,d3d46bc8,c17fa400,0) at ipflog+0x18f
> fr_check(c17fa450,14,c16c6000,0,d3d46c70) at fr_check+0xc6c
> fr_check_wrapper(0,d3d46c70,c16c6000,1,0) at fr_check_wrapper+0x2a
> pfil_run_hooks(c08fa5c0,d3d46cbc,c16c600,1,0) at pfil_run_hooks+0xeb
> ip_input(c17fa400) at ip_input+0x211
> netisr_processqueue(c08f9858) at netisr_processqueue+0x9f
> swi_net(0) at swi_net+0xee
> ithread_loop(c159a500,d3d46d38) at ithread_loop+0x151
> fork_exit(c0609f4c,c159a500,d3d46d38) at fork_exit+0x74
> fork_trampoline() at fork_trampoline+0x8
> --- trap 0x1, eip = 0, esp = 0xd3d46d6c, ebp = 0 ---
>
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