On every PC, the default serial irqs are 3 and 4.
You need to change the irq of your ethernet card with the DOS config tool that
came with it. Only modern PnP cards find an unused irq themselves.
-Joe
Jann Linder wrote:
>
> Well...i found out the following: my base addressof eth0 is 0x300 and
> Interrupt 3..
>
> Doesnt't that conflict with one of the serial ports default?
> I know on a Win95/NT system, the serial ports are (by default) irq 3 and 4?
>
> How do i change the eth0 irq?
>
> Jann
>
> Jann Linder
> Web Developer/CH2M Hill - SFO
> [EMAIL PROTECTED]
> Home Page:
> http://www.jann.com/
> CalendarPlus Web Site:
> http://www.calendarplus.com/
>
> -----Original Message-----
> From: Dave [SMTP:[EMAIL PROTECTED]]
> Sent: Tuesday, June 02, 1998 11:52 PM
> To: 'masq'
> Subject: Re: [masq] ip masq connects best if constantly pinging clients
>
> ifconfig will show you the MTU for all interfaced. Ignore lo - that is
> very high anyway. I found that I had to set the MTU on the ppp0 and eth0
> interfaces to 296 to make everything work properly. And for best results I
> have set the MTU on the nic in the Win95 clients to 296 as well. To check
> the ISPs MTU if you can telnet to the ISP and login to a shell prompt, do
> an ifconfig (you will probably have to specify the full path 'casue users
> don't usually have /sbin or /usr/sbin (depending on the unix flavour) in
> their path), and that should tell ya. My ISP is runnint Redhat Linux, so
> that was easy. Also check the /var/adm/debug file for when pppd makes its
> connection. You should see a couple of lines showing MRU negotiation
> requests. Here are a couple of examples from mine. The first shows when
> negotiation takes place:
>
> Jun 3 12:48:04 baldrick pppd[114]: sent [LCP ConfReq id=0x1 <mru 296>
> <magic 0x22005eef> <pcomp> <accomp>]
> Jun 3 12:48:04 baldrick pppd[114]: rcvd [LCP ConfReq id=0x1 <mru 296>
> <auth pap> <magic 0x3b4a5f18> <pcomp> <accomp>]
> Jun 3 12:48:04 baldrick pppd[114]: sent [LCP ConfAck id=0x1 <mru 296>
> <auth pap> <magic 0x3b4a5f18> <pcomp> <accomp>]
> Jun 3 12:48:07 baldrick pppd[114]: sent [LCP ConfReq id=0x1 <mru 296>
> <magic 0x22005eef> <pcomp> <accomp>]
> Jun 3 12:48:07 baldrick pppd[114]: rcvd [LCP ConfAck id=0x1 <mru 296>
> <magic 0x22005eef> <pcomp> <accomp>]
>
> and this one shows when I disabled negotation (this connected, but
> transmission speeds were slower and I could not browse some web pages, plus
> a couple of other email servers could not communicate with baldrick,
> strange and varying symptoms):
>
> May 28 19:35:55 baldrick pppd[632]: rcvd [LCP ConfReq id=0x1 <mru 296>
> <auth pap> <magic 0x4ddd6066> <pcomp> <accomp>]
> May 28 19:35:55 baldrick pppd[632]: sent [LCP ConfRej id=0x1 <mru 296>]
> May 28 19:35:55 baldrick pppd[632]: rcvd [LCP ConfReq id=0x2 <auth pap>
> <magic 0x4ddd6066> <pcomp> <accomp>]
> May 28 19:35:55 baldrick pppd[632]: sent [LCP ConfAck id=0x2 <auth pap>
> <magic 0x4ddd6066> <pcomp> <accomp>]
> May 28 19:35:58 baldrick pppd[632]: sent [LCP ConfReq id=0x1 <magic
> 0xa747a992> <pcomp> <accomp>]
> May 28 19:35:58 baldrick pppd[632]: rcvd [LCP ConfAck id=0x1 <magic
> 0xa747a992> <pcomp> <accomp>]
>
> It doesn't matter if you have an MTU of 296 or 1500, as long as it is
> consistent throughout. Our ISP says he did extensive testing when he was
> first setting himself up and found that 296 was optimum for the sort of
> conditions he was operating in.
>
> Can you ping from WinNT to something outside the Linux box ie. on the
> internet? I tried that here and no masquerading entries appeared. As soon
> as I started an FTP connection from Win95 an IP masquerading entry
> appeared.
>
> Dave
>
> ----------
> From: Jann Linder[SMTP:[EMAIL PROTECTED]]
> Sent: Wednesday, 3 June 1998 16:27
> To: 'Dave'
> Cc: 'masq'
> Subject: Re: [masq] ip masq connects best if constantly pinging clients
>
> Where else do I set mtu's except for the pppd dialer (linux to the
> 'net)...and is there a good way of finding out the exact mtu? (the isp
> doesn't know...their cust. svc is not tech support and they are a bit too
> big to care about the little guy...problem is ..they are the only ricochet
> modem ppp provider around San francisco) My ppp0 is defaulted to 1500 mtu
> at i set the modem at a 57600 connection speed.
>
> Yup...can ping linux from winnt and vice versa...currently i have a nohup
> ping process going from the linux box to winnt (lotsa traffic...but only
> two machines on the network anyway...so it really doesnt matter) This
> pinging is allowing instant access to the net...
>
> slow..but instant.
>
> Jann
>
> Jann Linder
> Web Developer/CH2M Hill - SFO
> [EMAIL PROTECTED]
> Home Page:
> http://www.jann.com/
> CalendarPlus Web Site:
> http://www.calendarplus.com/
>
> -----Original Message-----
> From: Dave [SMTP:[EMAIL PROTECTED]]
> Sent: Tuesday, June 02, 1998 11:13 PM
> To: 'masq'
> Subject: Re: [masq] ip masq connects best if constantly pinging clients
>
> Jann,
>
> Can you ping anything outside your network from the WinNT box? From the
> Linux box?
>
> It may not help, but it's something else to check, but check the MTU
> everywhere you can think of. I had some strange problems 'cause I had some
> MTUs set differently.
>
> We have a machine here with a flaky ethernet card. If I do a ping -f
> <ip.addr> it drops about 5 packets a second. Not good. Maybe one of your
> nic's is problematic?
>
> Dave
>
> ----------
> From: Jann Linder[SMTP:[EMAIL PROTECTED]]
> Sent: Wednesday, 3 June 1998 15:45
> To: 'Dave'; 'masq'
> Subject: Re: [masq] ip masq connects best if constantly pinging clients
>
> The only thing that makes me think this is not true is that I have netstat
> -Mc running constantly and it is not listing any connections when this
> occurs...the gateway in the client machines is listed as an ip # so i
> wouldn't think this is a problem...
>
> But...as they say, thanks for taking the time to think about it...it gives
> food for thought.
>
> Jann
>
> Jann Linder
> Web Developer/CH2M Hill - SFO
> [EMAIL PROTECTED]
> Home Page:
> http://www.jann.com/
> CalendarPlus Web Site:
> http://www.calendarplus.com/
>
> -----Original Message-----
> From: Dave [SMTP:[EMAIL PROTECTED]]
> Sent: Tuesday, June 02, 1998 5:34 PM
> To: 'masq'
> Subject: Re: [masq] ip masq connects best if constantly pinging clients
>
> Greetings.
>
> It might have something to do with DNS entries expiring perhaps. If you
> keep pinging then possibly the DNS entries would stay there. If there was
> no activity maybe the DNS entries would expire and be removed from the
> cache.
>
> I noticed that if my Linux machine (before I connected it to the network)
> could not resolve a name locally it would try to contact the next higher
> DNS, but not being connected could not, so it timeouted, but this took a
> few seconds.
>
> You can try doing a ipfwadm -M -l (lowercase ell) which will list the
> masquerading entries, and show you the times those expire as well.
>
> hth
>
> Dave
>
> ----------
> From: Jann Linder[SMTP:[EMAIL PROTECTED]]
> Sent: Wednesday, 3 June 1998 10:18
> To: 'masq'
> Subject: [masq] ip masq connects best if constantly pinging clients
>
> Anyone heard of IP Masquerade running on linux kernel 2.0.32 listening
> closer if you continually ping a client machine?
>
> my client is winnt and if i set linux to continually ping it, then the
> linux box receives an acts on TCP requests from the winnt box
> faster...sometimes it doesn't recognize the winnt box ax all...here are the
> commands and routing i am using on the linux box.
>
> > ipfwadm -F -f
> > ipfwadm -F -p deny
> > ipfwadm -F -a m -S 192.168.1.0/24 -D 0.0.0.0/0
>
> Leaving out the Metric, Ref and Use as they would not tell you anything--
>
> Destination Gateway Genmask Flags Iface
> mg134-198.domain * 255.255.255.255 UH ppp0
> 192.168.1.0 * 255.255.255.0 U eth0
> 127.0.0.0 * 255.0.0.0 U lo
> default mg134-198..domain 0.0.0.0 UG ppp0
>
> Thanks in advance for advice.
>
> Jann
>
> (bad day!) ;(
>
> Jann Linder
> Web Developer/CH2M Hill - SFO
> [EMAIL PROTECTED]
> Home Page:
> http://www.jann.com/
> CalendarPlus Web Site:
> http://www.calendarplus.com/
>
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--
Joachim Feise Microsoft Certified Solution Developer
mailto:[EMAIL PROTECTED] http://www.ics.uci.edu/~jfeise/
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