[SLUG] Networking Problem
A couple of days ago I swapped my 10/100mbs eth card for a gigabit card. Just noticed that I was having poor connection with amule - traced it to fact that network settings were set to dhcp wheras before card change were set to static ip. System apparently automatically setup new card with no action on my part. In System Settings/Network Settings ( Kubuntu 6.06). I changed dhcp to static ip and entered correct ip ( to match modem/router port forwarding previousl working). Have now noticed that new card is seen as eth1, even though it is in same slot as old card which was eth0. There is only 1 card, no wireless. /etc /network/interfaces has entries ( identical) for both eth0 and eth1. As a result of all of the above, Superkaramba network monitor themes do not see ip or throughput, though system is working fine. How should I fix this? Just edit /etc/network/interfaces and remove entry for eth1? Thanks Bill -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html
[SLUG] Networking Problem
I have just successfully installed Smoothwall 1.0 on a PII box (after changing DLink530TX+ rev "D" for a Rev "A" nic). Using a crossover cable I can successfully access the Smoothwall box from my K6 PC running Mandrake 9.0. (uses a Dlink DFE 530TX rev "A" nic) Trying the same thing from my K7 box (modem attached, setup and working), also with Mandrake 9.0, I can successfully "ping" the Smoothwall box from a terminal, both as Root and as User. However, when I try to access the Smoothwall box via a browser (Konqueror, Galeon or Opera ) I get an error message, either "network problem", "connection refused" or "could not connect", depending on the browser. On this box Mandrake shows the Lan Config as "eth0 192.168.1.3 dhcp via rhine up" (DLink DFE 530TX+ "rev D" nic). I have tried connecting with Shorewall, privoxy and the modem on and off in all combos, ensuring that I reset the browser proxy settings accordingly, with the same result. Am I correct in thinking that the problem stems from having the external modem connected and installed on the K7 box whilst also having this box connected to the Smoothwall box? (ie Mandrake is set to use the Modem for internet connection, but the Nic for Lan connection.) If so, is there a fix for this, preferably without having to remove the modem (I also run Win XP on the K7 and can't get the DLink card installed under same - no apparent driver on DLink site for XP). Once I get the nic installed under XP I'll permanently attach modem to Smoothwall box, and update Mandrake settings. Thanks in advance for any help or suggestions. Bill [EMAIL PROTECTED] -- SLUG - Sydney Linux User's Group - http://slug.org.au/ More Info: http://lists.slug.org.au/listinfo/slug
Re: [SLUG] Networking Problem
It will be the loading of the module, maybe the old module is still being loaded (or force loaded and is consuming the eth0 device name). Can't say I am fimilar with kubuntu and what it uses for auto loading modules. On 2/27/07, bill <[EMAIL PROTECTED]> wrote: A couple of days ago I swapped my 10/100mbs eth card for a gigabit card. Just noticed that I was having poor connection with amule - traced it to fact that network settings were set to dhcp wheras before card change were set to static ip. System apparently automatically setup new card with no action on my part. In System Settings/Network Settings ( Kubuntu 6.06). I changed dhcp to static ip and entered correct ip ( to match modem/router port forwarding previousl working). Have now noticed that new card is seen as eth1, even though it is in same slot as old card which was eth0. There is only 1 card, no wireless. /etc /network/interfaces has entries ( identical) for both eth0 and eth1. As a result of all of the above, Superkaramba network monitor themes do not see ip or throughput, though system is working fine. How should I fix this? Just edit /etc/network/interfaces and remove entry for eth1? Thanks Bill -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html
Re: [SLUG] Networking Problem
[EMAIL PROTECTED] wrote on 27/02/2007 01:27:39 PM: > A couple of days ago I swapped my 10/100mbs eth card for a gigabit card. > --snip-- > > /etc /network/interfaces has entries ( identical) for both eth0 and eth1. > > > As a result of all of the above, Superkaramba network monitor themes do > not see ip or throughput, though system is working fine. > > How should I fix this? Just edit /etc/network/interfaces and remove > entry for eth1? > Hi Bill, Can you check in /etc/modprobe.d/aliases and see if your old cards module is aliased to eth0, and your new cards module is alised to eth1? If so, just change eth1 to eth0, and remove the other module from the alias. afterwards, run update-modules. *Note, that I am assuming the modules aliases is setup like debian, if not, consult your manual. Regards, Scott -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html
Re: [SLUG] Networking Problem
* On Tue, Feb 27, 2007 at 01:27:39PM +1100, bill wrote: > How should I fix this? Just edit /etc/network/interfaces and remove > entry for eth1? Edit the file /etc/iftab - assigns card names based on mac address. -- Sonia Hamilton. GPG key A8B77238. -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html
[SLUG] Networking problem - help pls!
I have a home LAN of 4 PCs and 1 laptop. Connected phone-line --> modem/router --> gigabit ethernet switch --> PCs ( via CAT5 cable) Problem: the laptop and 3 PCs connect to the 'Net OK. 4th PC won't even ping the modem/router, although it did access the 'Net properly a couple of months ago ( when I last used the PC). However:- 1) if I disconnect this PC from the ethernet switch and connect the cable directly into the modem/router I can access the 'Net. 2) if I connect the laptop to the LAN cable that is normally plugged ino the problem PC, the laptop connects to the 'Net 3) if I boot the problem PC from a LiveCD I can connect to the 'Net via the switc and modem/router. 4) if I change the problem PC from fixed IP to "connect b DHCP" it still wont connect. The problem PC has its' /etc/network/interfaces file setup correctly ( verified against other PCs - just different IP). The problem PC doesn't have a firewall. All PCs are running Kubuntu - 6.10 in the case of the problem PC. The ony thing that has changed is the ethernet switch from a 10/100 to a gigabit switch. The PC's mobo has gigabit LAN. All PCs have fixed IPs ( fixed to that determined automatically by DHCP). I have changed the problem PCs IP to match that provided by the new gigabit switch. There are no conflicting IPs. All IPs fall within the range set in the LAN portion of the modem/router. From above test have determined that there are no problems with the cables, modem/router or ethernet switch. Advice please. -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html
[SLUG] Networking problem with Optus Cable.
My home internet connection via Optus cable has been suffering from intermittent disconnections in recent weeks. The set up here is that the cable modem (a Nortel Cable Modem 100) connects to a Linksys WRT54G router via an ethernet cable and the router in turn feeds this computer and a laser printer via ethernet cables. The router is running v3.03.6, Dec 29, 2004 software. Under normal operation the router picks up an address and DNS information from the cable modem as it boots up. The computer in turn picks up an address from the router when it boots up. I usually realise that the connection has failed when browsing the internet and I cannot follow a link or when I try to fetch the mail. In the failed state the indicator leds on the cable modem behave strangely with ever changing combinations. Sometimes it looks like the modem is going through some form of self test or boot sequence. In the past the fault could sometimes be cleared by de-powering al the hardware for half an hour and bringing up the cable modem, router and computer in that order. Sometimes the fault would clear apparently spontaneously. Today I contacted Optus technical support but the fault cleared just as I got to speak to a real person. During the call the support person mentioned that some customers had been having trouble with routers and to try connecting the computer straight to the cable modem if the problem returned. A short while later the problem reappeared and I restarted without the router. The computer ran all day with no problem so I thought I would see if the fault would return if I reinstated the router. Inserting the router now fails 100% of the time but I can still get to the setup program in the router from the computer using the browser. Have any slugger´s seen anything like this? Any ideas on testing the router? cheers, Ken -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html
Re: [SLUG] Networking problem - help pls!
Hi Bill, try running ethtool on the NIC and try to see if there's a link and what mode it's configured in.. you can also try to hard set the link modes with ethtool.. depending upon the switch type you may be able to hard set on it as well # ethtool eth0 Settings for eth0: Supported ports: [ MII ] Supported link modes: 10baseT/Half 10baseT/Full 100baseT/Half 100baseT/Full 1000baseT/Half 1000baseT/Full Supports auto-negotiation: Yes Advertised link modes: 10baseT/Half 10baseT/Full 100baseT/Half 100baseT/Full 1000baseT/Half 1000baseT/Full Advertised auto-negotiation: Yes Speed: 1000Mb/s Duplex: Full Port: Twisted Pair PHYAD: 1 Transceiver: internal Auto-negotiation: on Supports Wake-on: g Wake-on: d Current message level: 0x00ff (255) Link detected: yes On 9/20/07, bill <[EMAIL PROTECTED]> wrote: > > I have a home LAN of 4 PCs and 1 laptop. > > Connected phone-line --> modem/router --> gigabit ethernet switch --> > PCs ( via CAT5 cable) > > Problem: the laptop and 3 PCs connect to the 'Net OK. > > 4th PC won't even ping the modem/router, although it did access the 'Net > properly a couple of months ago ( when I last used the PC). > > However:- > > 1) if I disconnect this PC from the ethernet switch and connect the > cable directly into the modem/router I can access the 'Net. > > 2) if I connect the laptop to the LAN cable that is normally plugged ino > the problem PC, the laptop connects to the 'Net > > 3) if I boot the problem PC from a LiveCD I can connect to the 'Net via > the switc and modem/router. > > 4) if I change the problem PC from fixed IP to "connect b DHCP" it still > wont connect. > > The problem PC has its' /etc/network/interfaces file setup correctly ( > verified against other PCs - just different IP). > > The problem PC doesn't have a firewall. > > All PCs are running Kubuntu - 6.10 in the case of the problem PC. > > The ony thing that has changed is the ethernet switch from a 10/100 to a > gigabit switch. The PC's mobo has gigabit LAN. > > All PCs have fixed IPs ( fixed to that determined automatically by > DHCP). I have changed the problem PCs IP to match that provided by the > new gigabit switch. > > There are no conflicting IPs. > > All IPs fall within the range set in the LAN portion of the modem/router. > > From above test have determined that there are no problems with the > cables, modem/router or ethernet switch. > > Advice please. > -- > SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ > Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html > -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html
Re: [SLUG] Networking problem - help pls!
On Thu, Sep 20, 2007 at 11:04:04AM +1000, bill wrote: > I have a home LAN of 4 PCs and 1 laptop. > > Connected phone-line --> modem/router --> gigabit ethernet switch --> PCs ( > via CAT5 cable) > > Problem: the laptop and 3 PCs connect to the 'Net OK. > > 4th PC won't even ping the modem/router, although it did access the 'Net > properly a couple of months ago ( when I last used the PC). > > However:- > > 1) if I disconnect this PC from the ethernet switch and connect the cable > directly into the modem/router I can access the 'Net. > > 2) if I connect the laptop to the LAN cable that is normally plugged ino > the problem PC, the laptop connects to the 'Net > > 3) if I boot the problem PC from a LiveCD I can connect to the 'Net via the > switc and modem/router. > > 4) if I change the problem PC from fixed IP to "connect b DHCP" it still > wont connect. > > The problem PC has its' /etc/network/interfaces file setup correctly ( > verified against other PCs - just different IP). > > The problem PC doesn't have a firewall. > > All PCs are running Kubuntu - 6.10 in the case of the problem PC. > > The ony thing that has changed is the ethernet switch from a 10/100 to a > gigabit switch. The PC's mobo has gigabit LAN. > > All PCs have fixed IPs ( fixed to that determined automatically by DHCP). I > have changed the problem PCs IP to match that provided by the new gigabit > switch. > > There are no conflicting IPs. > > All IPs fall within the range set in the LAN portion of the modem/router. > > From above test have determined that there are no problems with the cables, > modem/router or ethernet switch. what does ifconfig show, are there rx or tx counters going up ? could also try tcpdump, i am presuming you have a switch and not a hub, but i would guess there are going to be some broadcast packets that you should pickup what does dmesg say or syslog ? any obvious errors > > Advice please. > -- > SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ > Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html > signature.asc Description: Digital signature -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html
Re: [SLUG] Networking problem - help pls!
On 20/09/2007, Alex Samad <[EMAIL PROTECTED]> wrote: > > On Thu, Sep 20, 2007 at 11:04:04AM +1000, bill wrote: > > I have a home LAN of 4 PCs and 1 laptop. > > > > Connected phone-line --> modem/router --> gigabit ethernet switch --> > PCs ( > > via CAT5 cable) I've just noticed that you mention that you ue CAT-5 cables. Maybe they are not good enough for Gigabit and you should switch to Cat-6. http://en.wikipedia.org/wiki/Category_5_cable (even if this cable works with other configurations, maybe it's a border-line case which crosses the border in this particular configuration). --Amos -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html
[SLUG] Networking problem -- partially solved - help still reqd
Thanks to Alex,Kevin, Amos, and Tony (hope I haven't missed anybody). I've solved the problem with the LAN - there was no hardware problem, just a problem with the newly created account for my wife. It has no network/web access. Have read the man pages re creating new users, and have googled extensively, yet I still haven't found, or can't grasp what is necessary to enable LAN/Net access for a newly added user account . I understand adding the User to various groups, but just what group is necessary for LAN/Net access? I assume that it is the "web-data" group , but adding my wife's account to this group and/or the "users" group has no effect. Sorry if all of this seems obvious to you but I'm not 100% at the moment and my poor old brain isn't working at full capacity. In addition I've never had to deal with adding other users on my home network, as up until now I've been the only user, and my accoun has always been created during distro installation. THanks Bill On Thu, Sep 20, 2007 at 11:04:04AM +1000, bill wrote: I have a home LAN of 4 PCs and 1 laptop. Connected phone-line --> modem/router --> gigabit ethernet switch --> PCs ( via CAT5 cable) Problem: the laptop and 3 PCs connect to the 'Net OK. 4th PC won't even ping the modem/router, although it did access the 'Net properly a couple of months ago ( when I last used the PC). However:- 1) if I disconnect this PC from the ethernet switch and connect the cable directly into the modem/router I can access the 'Net. 2) if I connect the laptop to the LAN cable that is normally plugged ino the problem PC, the laptop connects to the 'Net 3) if I boot the problem PC from a LiveCD I can connect to the 'Net via the switc and modem/router. 4) if I change the problem PC from fixed IP to "connect b DHCP" it still wont connect. The problem PC has its' /etc/network/interfaces file setup correctly ( verified against other PCs - just different IP). The problem PC doesn't have a firewall. All PCs are running Kubuntu - 6.10 in the case of the problem PC. The ony thing that has changed is the ethernet switch from a 10/100 to a gigabit switch. The PC's mobo has gigabit LAN. All PCs have fixed IPs ( fixed to that determined automatically by DHCP). I have changed the problem PCs IP to match that provided by the new gigabit switch. There are no conflicting IPs. All IPs fall within the range set in the LAN portion of the modem/router. From above test have determined that there are no problems with the cables, modem/router or ethernet switch. -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html
Re: [SLUG] Networking problem -- partially solved - help still reqd
On 23/09/2007, bill <[EMAIL PROTECTED]> wrote: > > I've solved the problem with the LAN - there was no hardware problem, > just a problem with the newly created account for my wife. It has no > network/web access. What do you get when you try to ping? Does the ping program run at all? Same with browsers - what do you get when you try to run a browser from the command line? What about wget or other command line tools? What errors do they print when you try to execute them from command line under this account? -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html
Re: [SLUG] Networking problem -- partially solved - help still reqd
On 9/23/07, bill <[EMAIL PROTECTED]> wrote: > > > > Thanks to Alex,Kevin, Amos, and Tony (hope I haven't missed anybody). > > I've solved the problem with the LAN - there was no hardware problem, > just a problem with the newly created account for my wife. It has no > network/web access. That's really not usual, you shouldn't normally need to do anything to get network access... I think someone mentioned SELinux settings - sounds like that could be the problem.. I'd suggest checking the output of 'dmesg' and look in /var/log/syslog for clues Have read the man pages re creating new users, and have googled > extensively, yet I still haven't found, or can't grasp what is necessary > to enable LAN/Net access for a newly added user account . > > I understand adding the User to various groups, but just what group is > necessary for LAN/Net access? I assume that it is the "web-data" group , > but adding my wife's account to this group and/or the "users" group has > no effect. > > Sorry if all of this seems obvious to you but I'm not 100% at the moment > and my poor old brain isn't working at full capacity. > > In addition I've never had to deal with adding other users on my home > network, as up until now I've been the only user, and my accoun has > always been created during distro installation. > > THanks > > Bill > > > > > > > > On Thu, Sep 20, 2007 at 11:04:04AM +1000, bill wrote: > > > >> I have a home LAN of 4 PCs and 1 laptop. > >> > >> Connected phone-line --> modem/router --> gigabit ethernet switch --> > PCs ( > >> via CAT5 cable) > >> > >> Problem: the laptop and 3 PCs connect to the 'Net OK. > >> > >> 4th PC won't even ping the modem/router, although it did access the > 'Net > >> properly a couple of months ago ( when I last used the PC). > >> > >> However:- > >> > >> 1) if I disconnect this PC from the ethernet switch and connect the > cable > >> directly into the modem/router I can access the 'Net. > >> > >> 2) if I connect the laptop to the LAN cable that is normally plugged > ino > >> the problem PC, the laptop connects to the 'Net > >> > >> 3) if I boot the problem PC from a LiveCD I can connect to the 'Net via > the > >> switc and modem/router. > >> > >> 4) if I change the problem PC from fixed IP to "connect b DHCP" it > still > >> wont connect. > >> > >> The problem PC has its' /etc/network/interfaces file setup correctly ( > >> verified against other PCs - just different IP). > >> > >> The problem PC doesn't have a firewall. > >> > >> All PCs are running Kubuntu - 6.10 in the case of the problem PC. > >> > >> The ony thing that has changed is the ethernet switch from a 10/100 to > a > >> gigabit switch. The PC's mobo has gigabit LAN. > >> > >> All PCs have fixed IPs ( fixed to that determined automatically by > DHCP). I > >> have changed the problem PCs IP to match that provided by the new > gigabit > >> switch. > >> > >> There are no conflicting IPs. > >> > >> All IPs fall within the range set in the LAN portion of the > modem/router. > >> > >> From above test have determined that there are no problems with the > cables, > >> modem/router or ethernet switch. > > -- > SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ > Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html > -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html
Re: [SLUG] Networking problem -- partially solved - help still reqd
Thanks to Tony and Kevin. As I replied to them:- It was only the Kubuntu installation on hat particular machine that wouldn't allow the new user account to access the LAN/'Net via the gigabit switch. Worked fine with the 10/100 switch, and the gigabit switch worked fine booting from a LiveCD. AS the installaton was Kubuntu 6.06 I decided to cut my losses and take the easy way out. Have installed LinuxMint KDE "Cassandra" ( Ubuntu Feisty based) and now I have an updated OS that has no problems wit the gigabit switch. Funny thing is that anoter PC also running Kubuntu 6.06 runs fine wit the gigabit switch. May be chip-type related - who knows? Thanks again Bill -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html
