Networking

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(Networking concepts and configuration)
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=== GLIBC ===
 
=== GLIBC ===
  
* IPv4: [https://bugzilla.redhat.com/show_bug.cgi?id=721350 <code>getaddrinfo("127.0.0.1", ...)</code> fail with some AI_ADDRCONFIG configurations]
+
* IPv4: [http://bugzilla.redhat.com/show_bug.cgi?id=721350 <code>getaddrinfo("127.0.0.1", ...)</code> fail with some AI_ADDRCONFIG configurations]
* IPv6: [https://bugzilla.redhat.com/show_bug.cgi?id=808147 Fedora 808147 - <code>getaddrinfo("::1", ...)</code> fails with some configurations of AI_ADDRCONFIG]
+
* IPv6: [http://bugzilla.redhat.com/show_bug.cgi?id=808147 Fedora 808147 - <code>getaddrinfo("::1", ...)</code> fails with some configurations of AI_ADDRCONFIG]
 
* IPv6: <code>getaddrinfo("fe80::1234:56ff:fe78:90%eth0", ...)</code> also fails as above
 
* IPv6: <code>getaddrinfo("fe80::1234:56ff:fe78:90%eth0", ...)</code> also fails as above
* IPv6: [https://bugzilla.redhat.com/show_bug.cgi?id=843054 GLIBC's nsswitch doesn't support overriding <code>getaddrinfo</code> which is requred to resolve link-local IPv6 addresses]
+
* IPv6: [http://bugzilla.redhat.com/show_bug.cgi?id=843054 GLIBC's nsswitch doesn't support overriding <code>getaddrinfo</code> which is requred to resolve link-local IPv6 addresses]
 
* DNS: [http://sourceware.org/bugzilla/show_bug.cgi?id=2099 <code>getaddrinfo</code> doesn't support SRV records]
 
* DNS: [http://sourceware.org/bugzilla/show_bug.cgi?id=2099 <code>getaddrinfo</code> doesn't support SRV records]
  
 
=== dhclient ===
 
=== dhclient ===
  
* Fixed: [https://bugzilla.redhat.com/show_bug.cgi?id=662254 <code>dhclient</code> fails with large values of dhcp-renawal-time, notably the infinity (0xffffffff) value]
+
* Fixed: [http://bugzilla.redhat.com/show_bug.cgi?id=662254 <code>dhclient</code> fails with large values of dhcp-renawal-time, notably the infinity (0xffffffff) value]
 
* People say that dhclient exchange is slow, especially on wireless (I can't reproduce)
 
* People say that dhclient exchange is slow, especially on wireless (I can't reproduce)
  
 
=== Avahi ===
 
=== Avahi ===
  
* [https://bugzilla.redhat.com/show_bug.cgi?id=719178 Avahi's ''nss-mdns'' returns link-local IPv6 addresses ''without'' scope_id and applications fail to connect]
+
* [http://bugzilla.redhat.com/show_bug.cgi?id=719178 Avahi's ''nss-mdns'' returns link-local IPv6 addresses ''without'' scope_id and applications fail to connect]
* [https://bugzilla.redhat.com/show_bug.cgi?id=821127 Avahi's IPv6 support is disabled by default (this has been resolved in the past)]
+
* [http://bugzilla.redhat.com/show_bug.cgi?id=821127 Avahi's IPv6 support is disabled by default (this has been resolved in the past)]
  
 
=== NetworkManager ===
 
=== NetworkManager ===

Revision as of 15:22, 23 November 2012

Networking features are nowadays important for virtually all users of Fedora and other linux distributions. Fedora's main network use cases are laptops, desktops, servers and virtualization. Fedora could also be used for routers, becoming part of networking infrastructure.

Contents

Networking concepts and configuration

Most prominent projects involved in linux networking

Networking problems

Only platform bugs that can influence various application and/or the overall behavior of the system belong here.

Kernel

  • Bridge: Adding first interface after setting MAC address changes the MAC address
  • IPv4: Kernel can't store DHCP lifetime and cannot mark IPv6 addresses dynamic (in the DHCP sense)
  • IPv6: Kernel ignores RA router preference
  • IPv6: Tempaddr cycling breaks TCP connections prematurely
  • IPv6: Kernel doesn't cache RDNSS and DNSSL
  • IPv6: Kernel doesn't provide default route information when defrtr is disabled
  • IPv6: Kernel doesn't provide prefix route information when pinfo is disabled

libnl

  • rtnl_link_bond_add() succeeds when device already exists
  • rtnl_link_bridge_add() and rtnl_link_vlan_add missing

iproute

  • iproute won't distinguish bridges and bonds
  • iproute won't show vlan id

GLIBC

dhclient

Avahi

NetworkManager

Testing tools

  • ping doesn't support IPv6 (you have to use ping6)