diff options
| author | Paul Mackerras <paulus@samba.org> | 1999-08-12 03:56:41 +0000 |
|---|---|---|
| committer | Paul Mackerras <paulus@samba.org> | 1999-08-12 03:56:41 +0000 |
| commit | e163b2330bc14a74f599ab1854ef9abdad841279 (patch) | |
| tree | b3717e5a0e71753f5ea5117cce113ee822216ffe /README.sol2 | |
| parent | 93275f4388d54fed6b98a1ddac5b22ba7d60edab (diff) | |
| download | ppp-e163b2330bc14a74f599ab1854ef9abdad841279.tar.gz | |
add sync support
Diffstat (limited to 'README.sol2')
| -rw-r--r-- | README.sol2 | 54 |
1 files changed, 54 insertions, 0 deletions
diff --git a/README.sol2 b/README.sol2 index 9248e58..5f4f00f 100644 --- a/README.sol2 +++ b/README.sol2 @@ -46,3 +46,57 @@ create an /etc/ppp/ip-up script containing something like this: /usr/sbin/ndd -set /dev/ip ip_forwarding 1 See the man page for ip(7p) for details. + +Synchronous Serial Support. +*************************** + +This version has working but limited support for the on-board synchronous HDLC +interfaces. It has been tested with the /dev/se_hdlc and /dev/zsh drivers. +Synchronous mode was tested with a Cisco router. + +There ppp daemon does not directly support controlling the serial interface. +It relies on the /usr/sbin/syncinit command to initialize HDLC mode and +clocking. + +Some bugs remain: large sized frames are not sent/received properly, and +may be related to the IP mtu. This +may be due to bugs in pppd itself, bugs in Solaris or the serial drivers. +The /dev/zsh driver seems more larger and can send/receive larger frames +than the /dev/se_hdlc driver. There is a confirmed bug with NRZ/NRZI mode +in the /dev/se_hdlc driver, and Solaris patch 104596-11 is needed to correct +it. (However this patch seems to introduce other serial problems. If you +don't apply the patch, the workaround is to change the nrzi mode to yes or +no, whichever works) + +How to start pppd with synchronous support: + +#!/bin/sh + +local=1.1.1.1 # your ip address here +baud=38400 # needed, but ignored by serial driver + +# Change to the correct serial driver/port +#dev=/dev/zsh0 +dev=/dev/se_hdlc0 + +# Change the driver, nrzi mode, speed and clocking to match your setup +# This configuration is for external clocking from the DCE +connect="syncinit se_hdlc0 nrzi=no speed=64000 txc=rxc rxc=rxc" + +/usr/sbin/pppd $dev sync $baud novj noauth $local: connect "$connect" + + +Sample Cisco router config excerpt: + +! +! Cisco router setup as DCE with RS-232 DCE cable +! +! +interface Serial0 + ip address 1.1.1.2 255.255.255.0 + encapsulation ppp + clockrate 64000 + no nrzi-encoding + no shutdown +! + |