Re: UNKNOWN IP OPTION emergency

2002-09-26 Thread Terry Lambert
soheil h wrote: > Hi > but the tunnel_send() for multicast tunnel do this with LSRR option > is the tunnel_send() a standard tunnel ?? that anyone understand it ? or > not ??? Thanx Sorry; I couldn't find a tunnel_send() function to check this against in the FreeBSD kernel sources. So I can

Re: UNKNOWN IP OPTION emergency

2002-09-26 Thread soheil h
Hi but the tunnel_send() for multicast tunnel do this with LSRR option is the tunnel_send() a standard tunnel ?? that anyone understand it ? or not ??? Thanx >From: Terry Lambert <[EMAIL PROTECTED]> >To: soheil h <[EMAIL PROTECTED]> >CC: [EMAIL PROTECTED], [EMAIL PROTECTED] >Subject: Re: U

Re: UNKNOWN IP OPTION emergency

2002-09-26 Thread Terry Lambert
soheil h wrote: > as in stevens' Tcp/Ip illustrated says when a router see an unknown option > it must silently ignore it but when i put an option by type 253 len 12 and > 10 byte of data > some router on my path drop it > how can i set an option an put 2 ip address in it that no router delete my

Re: Forwarding selected broadcasts with ipfw

2002-09-26 Thread Lars Eggert
David Zimmer wrote: > 1. I introduced a rule that should forward the packets, this rule looks > like > > fwd 212.88.130.135 udp from any to 255.255.255.255 19813 > > 2. The incoming packets match this rule according to the output of ipfw > show > > 3. The forwarded packet never gets out onto an

Forwarding selected broadcasts with ipfw

2002-09-26 Thread David Zimmer
Hello, we are using ipfw on FreeBSD 4.7 PRERELEASE as our main firewall. The box has 5 ethernet segments connected to it that serve - DMZ - DMZ Cisco CallManager - private LAN, Workstations - private LAN, Cisco IP Phones - public LAN, Internet Due to a new application that we are introducing we

Re: UNKNOWN IP OPTION emergency

2002-09-26 Thread Maxim Konovalov
On 19:00+0400, Sep 26, 2002, soheil h wrote: > > Dear All > > as in stevens' Tcp/Ip illustrated says when a router see an unknown option > it must silently ignore it but when i put an option by type 253 len 12 and > 10 byte of data > some router on my path drop it Do Not Crosspost (r) and Show Y

Re: UNKNOWN IP OPTION emergency

2002-09-26 Thread Barney Wolff
You can't. Some networks have firewalls or routers that drop any packet with IP options, as a security measure. You will not be able to persuade them otherwise. On Thu, Sep 26, 2002 at 06:30:54PM +0330, soheil h wrote: > some router on my path drop it > how can i set an option an put 2 ip addr

UNKNOWN IP OPTION emergency

2002-09-26 Thread soheil h
Dear All as in stevens' Tcp/Ip illustrated says when a router see an unknown option it must silently ignore it but when i put an option by type 253 len 12 and 10 byte of data some router on my path drop it how can i set an option an put 2 ip address in it that no router delete my data thanx

Re: Routed Log

2002-09-26 Thread Bruce M Simpson
On Wed, Sep 25, 2002 at 03:15:48PM -0400, Louis A. Mamakos wrote: > > > I do not permit any ICMP packages... > Sigh, and this is why Path MTU discovery is broken on the Internet. 'Packages' sounds awfully Checkpoint-ish. There's a lot of it about these days. :-( BMS To Unsubscribe: send mail t

Re: mbuf chain

2002-09-26 Thread Maxim Konovalov
[...] > I don't believe that mbuf fragments have any relationship to IP > fragmentation. > > And while you mention it, the IP fragmentation handling code is another > place where we need to add mbuf merging/chaining. > > I've been thinking about this, actually. How many IP fragments will a > pac

Re: mbuf chain

2002-09-26 Thread Mike Silbersack
On Wed, 25 Sep 2002, Giorgos Keramidas wrote: > On 2002-09-24 13:57, Prafulla Deuskar <[EMAIL PROTECTED]> wrote: > > All, > > > > Is there a pre-set limit on maximum number of fragments in a > > mbuf chain ? > > Not as a limit of the mbuf chain code, but as a limit of the IP packet > input code.