How to restore IP, MTU.

doc/erko_howto_tools.txt

 * RadioHDL with GIT (LOFAR2.0)
+* Network card MTU and IP address
 * Flash and reboot unb2
 * Flash and reboot on L2TS using tunnel to SDPTR
 * HDL images to keep on dop349
@@ -229,6 +230,29 @@ Synthesis neemt onegeveer 4GB voor Disturb image en 3GB voor SDP image, dus
 ongeveer 14GB / weekend. De regtest machine heeft nog 500GB vrij, dus we
 kunnen nog ongeveer 35x opslaan, voordat we moeten deleten.
 
+*******************************************************************************
+* Network card MTU and IP address
+*******************************************************************************
+
+# MTU wijzigen (when statistics packets get lost, show as Rx error in ifconfig)
+sudo ifconfig enp67s0f1 10.99.0.249 netmask 255.255.0.0 mtu 9000 up
+
+# When dop386 enp5s0 1GbE interface with sdp-arts has no ip address do:
+sudo ifconfig enp5s0 10.99.0.254
+sudo ifconfig enp5s0 netmask 255.255.0.0
+
+# When dop386 ens2 10GbE interface looses its IP or mtu settings (e.g. due
+# to PC reboot or cable reconnect) then to recover do:
+sudo ifconfig ens2 192.168.0.1 netmask 255.255.0.0
+sudo ip link set dev ens2 mtu 9000
+sudo ifconfig ens2 down
+sudo ifconfig ens2 up
+
+Last SDPFW version used in 2022:
+  kooistra@dop386:~/git/sdptr$ sdp_rw.py --host 10.99.0.250 --port 4842 -r firmware_version
+  read firmware_version:
+  node 64:  2022-11-06T02.45.36_e6769e2e3_lofar2_unb2b_sdp_station_full_wg
+
 *******************************************************************************
 * Flash and reboot unb2
 *******************************************************************************
@@ -281,19 +305,6 @@ sdp_rw.py --host localhost --port 4840 -r firmware_version
 sdp_firmware.py --host localhost --port 4840 -n 0 --reboot --image USER
 sdp_rw.py --host localhost --port 4840 -r firmware_version
 
-
-# MTU wijzigen (when statistics packets get lost, show as Rx error in ifconfig)
-sudo ifconfig enp67s0f1 10.99.0.249 netmask 255.255.0.0 mtu 9000 up
-
-# When dop386 with sdp-arts has no ip address do:
-sudo ifconfig enp5s0 10.99.0.254
-sudo ifconfig enp5s0 netmask 255.255.0.0
-
-Last SDPFW version used in 2022:
-  kooistra@dop386:~/git/sdptr$ sdp_rw.py --host 10.99.0.250 --port 4842 -r firmware_version
-  read firmware_version:
-  node 64:  2022-11-06T02.45.36_e6769e2e3_lofar2_unb2b_sdp_station_full_wg
-
 *******************************************************************************
 * Flash and reboot on L2TS using tunnel to SDPTR
 *******************************************************************************