path: root/Documentation/virtual/uml/UserModeLinux-HOWTO.txt
diff options
authorNolan Leake <>2011-05-24 17:13:02 -0700
committerLinus Torvalds <>2011-05-25 08:39:41 -0700
commit4ff4d8d342fe25c4d1106fb0ffdd310a43d0ace0 (patch)
treeb41ea0ecc007f1c90eceada0db081dc0fb81700c /Documentation/virtual/uml/UserModeLinux-HOWTO.txt
parentd634f194d4e2e58d57927c812aca097e67a2287d (diff)
um: add ucast ethernet transport
The ucast transport is similar to the mcast transport (and, in fact, shares most of its code), only it uses UDP unicast to move packets. Obviously this is only useful for point-to-point connections between virtual ethernet devices. Signed-off-by: Nolan Leake <> Signed-off-by: Richard Weinberger <> Cc: David Miller <> Signed-off-by: Andrew Morton <> Signed-off-by: Linus Torvalds <>
Diffstat (limited to 'Documentation/virtual/uml/UserModeLinux-HOWTO.txt')
1 files changed, 10 insertions, 0 deletions
diff --git a/Documentation/virtual/uml/UserModeLinux-HOWTO.txt b/Documentation/virtual/uml/UserModeLinux-HOWTO.txt
index 9b7e1904db1c..5d0fc8bfcdb9 100644
--- a/Documentation/virtual/uml/UserModeLinux-HOWTO.txt
+++ b/Documentation/virtual/uml/UserModeLinux-HOWTO.txt
@@ -1182,6 +1182,16 @@> and explains these in detail, as well as
some other issues.
+ There is also a related point-to-point only "ucast" transport.
+ This is useful when your network does not support multicast, and
+ all network connections are simple point to point links.
+ The full set of command line options for this transport are
+ ethn=ucast,ethernet address,remote address,listen port,remote port
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