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dE_logics
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Joined: 02 Jan 2009
Posts: 2253
Location: $TERM
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 Posted: Thu Oct 10, 2013 8:23 am Post subject: Network interface stops working on addition of a bridge. |
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First, create a tap interface --
| Code: | | ip tuntap add mode tap veth |
Stop network manager
| Code: | | /etc/init.d/NetworkManager stop |
down all interfaces --
| Code: | ifconfig eth1 down
ifconfigh veth down |
Add bridge --
| Code: | | brctl addbr eth1_veth |
Bridge eth1 and veth --
| Code: | | brctl addif eth1_veth eth1 veth |
run dhcpcd on eth1 --
| Code: | dhcpcd[6316]: version 5.6.4 starting
dhcpcd[6316]: eth1: carrier lost
dhcpcd[6316]: eth1: carrier acquired
dhcpcd[6316]: eth1: sending IPv6 Router Solicitation
dhcpcd[6316]: eth1: sendmsg: Cannot assign requested address
dhcpcd[6316]: eth1: rebinding lease of 192.168.1.2
dhcpcd[6316]: eth1: sending IPv6 Router Solicitation
dhcpcd[6316]: eth1: broadcasting for a lease
dhcpcd[6316]: eth1: sending IPv6 Router Solicitation
dhcpcd[6316]: eth1: sending IPv6 Router Solicitation
dhcpcd[6316]: eth1: no IPv6 Routers available
dhcpcd[6316]: timed out
dhcpcd[6316]: allowing 8 seconds for IPv4LL timeout
dhcpcd[6316]: eth1: probing for an IPv4LL address
dhcpcd[6316]: eth1: checking for 169.254.229.90
dhcpcd[6316]: eth1: using IPv4LL address 169.254.229.90
dhcpcd[6316]: forked to background, child pid 6369 |
Note, 169.254.229.90 is unheard of in my LAN, so this's just a random IP address. The DHCP server (built in a route) is working fine for other node in the LAN.
| Code: | | ifconfig eth1_veth up |
does not help. Networkmanager fails to configure the interface for dhcp.
Forcing a valid IP does work, but the interface can't do any communication to anything.
The moment I delete the bridge eth1_veth, everything starts working.
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massimo
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Joined: 22 Jun 2003
Posts: 1226
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| Posted: Thu Oct 10, 2013 10:19 am Post subject: |
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Check out Modular Networking. Further eth1 and veth should be up when you bring the bridge's link up. Why do you run dhcpcd against eth1 and not the bridge interface?
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dE_logics
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Joined: 02 Jan 2009
Posts: 2253
Location: $TERM
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| Posted: Thu Oct 10, 2013 3:40 pm Post subject: |
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| massimo wrote: | | Further eth1 and veth should be up when you bring the bridge's link up. Why do you run dhcpcd against eth1 and not the bridge interface? |
Woah! I didn't know that! Thanks!
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