Re: Disable Exponential Backoff (retry) on Ethernet?

Len Gross wrote this message on Wed, Oct 17, 2007 at 20:51 -0700: > I'm doing some protocol development and it is convenient to start it on > Ethernet. I will need to send a packet to the Ethernet device and only have > it be sent once, even if there is a colision. (Higher levels in the > protoco

packet loss with carp on 6.2

Hi guys, I have had a FreeBSD 6.2 (-p1 - yes I know :) firewall running for a while, with pf fw rules. It has worked fine, and was a replacement for a fbsd 4.x ipfw firewall. Now I just replaced the 6.2 pf firewall, with a 6.2 (-p7) and carp interfaces enabled. It's using the same cables and the

packet loss with carp on 6.2

Hi guys, I have had a FreeBSD 6.2 (-p1 - yes I know :) firewall running for a while, with pf fw rules. It has worked fine, and was a replacement for a fbsd 4.x ipfw firewall. Now I just replaced the 6.2 pf firewall, with a 6.2 (-p7) and carp interfaces enabled. It's using the same cables and the

Re: packet loss with carp on 6.2

I tried to just disable carp on the new machine (simply comment out carp config from /etc/rc.conf.local) and now the packet loss is gone - and hasn't been there for half an hour, so far. Seems the carp network interfaces has bugs. On Thu, October 18, 2007 10:33, Klavs Klavsen said: > Hi guys, > >

Re: packet loss with carp on 6.2

On Thursday 18 October 2007, Klavs Klavsen wrote: > I tried to just disable carp on the new machine (simply comment out > carp config from /etc/rc.conf.local) and now the packet loss is gone - > and hasn't been there for half an hour, so far. I supposed you also had to change your firewall rules?

Re: packet loss with carp on 6.2

On Thu, October 18, 2007 12:50, Max Laier said: > On Thursday 18 October 2007, Klavs Klavsen wrote: >> I tried to just disable carp on the new machine (simply comment out >> carp config from /etc/rc.conf.local) and now the packet loss is gone - >> and hasn't been there for half an hour, so far. >

Re: packet loss with carp on 6.2

On Thursday 18 October 2007 12:50:19 Max Laier wrote: > On Thursday 18 October 2007, Klavs Klavsen wrote: > > I tried to just disable carp on the new machine (simply comment out > > carp config from /etc/rc.conf.local) and now the packet loss is gone - > > and hasn't been there for half an hour, so

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Re: packet loss with carp on 6.2

On Thursday 18 October 2007 14:32:13 Milan Obuch wrote: > On Thursday 18 October 2007 12:50:19 Max Laier wrote: > > On Thursday 18 October 2007, Klavs Klavsen wrote: > > > I tried to just disable carp on the new machine (simply comment out > > > carp config from /etc/rc.conf.local) and now the pack

Re: tcp analysis tool?

-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Julian Elischer <[EMAIL PROTECTED]> wrote: > > does anyone have a favourite tool for analysing tcp flows to easily figure > out why a transfer is slow? Wireshark is good for interactively examining a tcpdump trace between two hosts. It will point ou

Secure Wireless Router using FreeBSD ...

-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Within my Linksys, I can restrict wireless to MAC addresses, as well as using stuff like WPA ... quick search on google, and I found: Which talks about setting up a WPA based

accept filters and zero copy sockets

I'm in the process of upgrading my web/database/nfs/jack-of-all-trades box from 6.2 to RELENG_7. I figured now would be a good time to clean up my kernel config files. I have the following in my old kernel config: # Statically Link in accept filters options ACCEPT_FILTER_DATA options

Re: packet loss with carp on 6.2

On Thursday 18 October 2007, Milan Obuch wrote: > On Thursday 18 October 2007 14:32:13 Milan Obuch wrote: > > On Thursday 18 October 2007 12:50:19 Max Laier wrote: > > > On Thursday 18 October 2007, Klavs Klavsen wrote: > > > > I tried to just disable carp on the new machine (simply comment > > > >

Re: kern/116172

The following reply was made to PR kern/116172; it has been noted by GNATS. From: Peter Wemm <[EMAIL PROTECTED]> To: [EMAIL PROTECTED] Cc: Subject: Re: kern/116172 Date: Thu, 18 Oct 2007 19:32:25 -0700 I've narrowed down the panic trigger. I have two userland processes doing a tun0 tunnel.

Re: tcp analysis tool?

Maksim Yevmenkin wrote: On 10/18/07, Julian Elischer <[EMAIL PROTECTED]> wrote: does anyone have a favourite tool for analysing tcp flows to easily figure out why a transfer is slow? I am hoping for something that can help visualise the flow as one of those "two timeline poles with lines betwe

Re: tcp analysis tool?

On 10/18/07, Julian Elischer <[EMAIL PROTECTED]> wrote: > does anyone have a favourite tool for analysing tcp flows to easily figure > out why a transfer is slow? > > I am hoping for something that can help visualise the flow as one of those > "two timeline poles with lines between them" diagrams.

IPv6 <-> NAT <-> IPv4 ... possible?

-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Could I hide an IPv6 network behind NAT? I don't know if that is even possible ... the IPv6 IPs would be private (equiv to 192.168.x.x) ... basically, none of the hosts behind NAT need a public IP, *but* I may end up with more then 256 hosts, so w

tcp analysis tool?

does anyone have a favourite tool for analysing tcp flows to easily figure out why a transfer is slow? I am hoping for something that can help visualise the flow as one of those "two timeline poles with lines between them" diagrams.. (that doesn't require too much extra software to be loaded.

Re: Disable Exponential Backoff (retry) on Ethernet?

Thanks so much for the response. Here is some additional information. I'm trying to emulate an RF network where there are colisions (e.g. "Aloha" type protocol) so I actually need collisions! I had forgotten that modern hardware essentially eliminated them. So, lets say I can find/use an "old h