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authorWolfgang Denk <wd@pollux.(none)>2005-09-24 23:25:46 +0200
committerWolfgang Denk <wd@pollux.(none)>2005-09-24 23:25:46 +0200
commit28cb9375846b4f072f80536549713a6bc8fcf298 (patch)
tree425d1a1ac55715461f3445c117612b972bc25fa5 /README
parentecb0ccd9c260701183bc8d35966e65e6a2feb2f6 (diff)
Update for TFTP using a fixed UDP port
Use the approved environment variable names. Added "tftpdstp" to allow ports other than 69 per Tolunay Orkun's recommendation. Patch by Jerry Van Baren, 12 Jan 2005
Diffstat (limited to 'README')
-rw-r--r--README15
1 files changed, 11 insertions, 4 deletions
diff --git a/README b/README
index 3b36e50e11d..9c3ff3844e6 100644
--- a/README
+++ b/README
@@ -1490,12 +1490,16 @@ The following options need to be configured:
- TFTP Fixed UDP Port:
CONFIG_TFTP_PORT
- If this is defined, the environment variable tftpport
+ If this is defined, the environment variable tftpsrcp
is used to supply the TFTP UDP source port value.
- If tftpport isn't defined, the normal pseudo-random port
+ If tftpsrcp isn't defined, the normal pseudo-random port
number generator is used.
- The purpose for this is to allow a TFTP server to
+ Also, the environment variable tftpdstp is used to supply
+ the TFTP UDP destination port value. If tftpdstp isn't
+ defined, the normal port 69 is used.
+
+ The purpose for tftpsrcp is to allow a TFTP server to
blindly start the TFTP transfer using the pre-configured
target IP address and UDP port. This has the effect of
"punching through" the (Windows XP) firewall, allowing
@@ -2468,9 +2472,12 @@ Some configuration options can be set using Environment Variables:
Useful on scripts which control the retry operation
themselves.
- tftpport - If this is set, the value is used for TFTP's
+ tftpsrcport - If this is set, the value is used for TFTP's
UDP source port.
+ tftpdstport - If this is set, the value is used for TFTP's UDP
+ destination port instead of the Well Know Port 69.
+
vlan - When set to a value < 4095 the traffic over
ethernet is encapsulated/received over 802.1q
VLAN tagged frames.