Multiple VLANs on Single NIC
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Posted by yash on January 19, 2006, 8:06 am
Please log in for more thread options Hi, I am using Cisco 3570 Ethernet switch and Linex machine Red Hat 3.4.2-6.fc3. My switch is having VLAN and routing feature.It supports 802.1Q. I have a situation where Linux PC participates in two VLANs,but its having only one NIC and cable connecting to switch. How does it possible in Linux. Can one NIC have more than VLANs? I am having differnet IP ranges (subnets). What i have tried is like this: I assigned trunking to the switch port which is connneced to Linux PC. Than i have assigned two Different IP adderss(differnet subnets) on NIC with the help of Device aliase feature. First IP adderss is 192.168.100.5 (default gateway: 192.158.100.1) and second IP adderss is 192.168.101.6 (default gateway: 192.158.101.1). Than i am tring to Ping both the addresses. IP 192.168.100.5 is pinging but the aliase IP 192.168.101.6 is not pinging. With this my exprimet to assign two IP address to one NIC failed I would appriciate any input on this and feel lucky if it comes soon as i need this information very urgently. Best Regards. Yash. | ||||||||||||||||||||||
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Posted by Arnold Nipper on January 19, 2006, 8:25 am
Please log in for more thread options On 19.01.2006 14:06 yash wrote you also have to enable vlan on your Linux box. /etc/network/interfaces could look like auto eth0 iface eth0 inet static address 0.0.0.0 auto vlan100 iface vlan100 inet static vlan-raw-device eth0 address 192.168.100.5 netmask 255.255.255.0 network 192.168.100.0 broadcast 192.168.100.255 auto vlan101 iface vlan101 inet static vlan-raw-device eth0 address 192.168.101.6 netmask 255.255.255.0 network 192.168.101.0 broadcast 192.168.101.255 Best regards, Arnold -- Arnold Nipper, AN45 | ||||||||||||||||||||||
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Posted by yash on January 23, 2006, 3:57 am
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Hi Arnold, Thanks for attention. But what you suggested doesn't seem to work on my Linux box. My Linux box does'nt has /etc/network/interfaces. And I didn't get any mean to apply what you told. Can you tell me, how to do what you asked or suggest any other way? I am using PCQLinux 2005 (WhiteHope) Kernel2.6.10-1.741_FC3 on an i686. Regards Yash | ||||||||||||||||||||||
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Posted by Arnold Nipper on January 23, 2006, 4:46 am
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On 23.01.2006 09:57 yash wrote > Hi Arnold,
> > Thanks for attention. > > But what you suggested doesn't seem to work on my Linux box. My Linux > box does'nt has /etc/network/interfaces. And I didn't get any mean > to apply what you told. Can you tell me, how to do what you asked or > suggest any other way? > I am using PCQLinux 2005 (WhiteHope) Kernel2.6.10-1.741_FC3 on an i686. > I'm not familiar with PCQLinux 2005. Please look for vlan in the documentation or ask your supplier/community. Arnold -- Arnold Nipper, AN45 | ||||||||||||||||||||||
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Posted by Robert Redelmeier on January 23, 2006, 9:28 am
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> But what you suggested doesn't seem to work on my Linux
> box. My Linux box does'nt has /etc/network/interfaces. And > I didn't get any mean to apply what you told. Can you tell > me, how to do what you asked or suggest any other way? > I am using PCQLinux 2005 (WhiteHope) Kernel2.6.10-1.741_FC3 > on an i686. See if your distro has info under /usr/doc/vlan* `vconfig` is the usual pgm, and it should show under `ifconfig`. -- Robert | ||||||||||||||||||||||
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>
> I am using Cisco 3570 Ethernet switch and Linex machine Red Hat
> 3.4.2-6.fc3. My switch is having VLAN and routing feature.It supports
> 802.1Q. I have a situation where Linux PC participates in two VLANs,but
> its having only one NIC and cable connecting to switch. How does it
> possible in Linux. Can one NIC have more than VLANs? I am having
> differnet IP ranges (subnets).
>
> What i have tried is like this:
> I assigned trunking to the switch port which is connneced to Linux PC.
> Than i have assigned two Different IP adderss(differnet subnets) on NIC
> with the help of Device aliase feature. First IP adderss is
> 192.168.100.5 (default gateway: 192.158.100.1) and second IP adderss is
> 192.168.101.6 (default gateway: 192.158.101.1). Than i am tring to Ping
> both the addresses. IP 192.168.100.5 is pinging but the aliase IP
> 192.168.101.6 is not pinging.
> With this my exprimet to assign two IP address to one NIC failed
>
> I would appriciate any input on this and feel lucky if it comes soon as
> i need this information very urgently.
>