echo “- – -” > /sys/class/scsi_host/host0/scan
If you see these messages:
Jul 4 09:49:50 xxxfw2 kernel: NET: 89 messages suppressed.
Jul 4 09:49:50 xxxfw2 kernel: Neighbour table overflow.
Jul 4 09:50:04 xxxfw2 kernel: NET: 22 messages suppressed.
Jul 4 09:50:04 xxxfw2 kernel: Neighbour table overflow.
Jul 4 09:50:04 xxxfw2 kernel: Neighbour table overflow.
Jul 4 09:50:05 xxxfw2 kernel: NET: 65 messages suppressed.
Jul 4 09:50:05 xxxfw2 kernel: Neighbour table overflow.
Jul 4 09:50:10 xxxfw2 kernel: NET: 264 messages suppressed.
Jul 4 09:50:10 xxxfw2 kernel: Neighbour table overflow.
Jul 4 09:50:15 xxxfw2 kernel: NET: 274 messages suppressed.
Jul 4 09:50:15 xxxfw2 kernel: Neighbour table overflow.
Jul 4 09:50:22 xxxfw2 kernel: NET: 97 messages suppressed.
Jul 4 09:50:22 xxxfw2 kernel: Neighbour table overflow.
Jul 4 09:50:25 xxxfw2 kernel: NET: 475 messages suppressed.
Jul 4 09:50:25 xxxfw2 kernel: Neighbour table overflow.
Then you need to increment your ARP cache size. Add these lines to the bottom of /etc/sysctl.conf:
# arp cache amendments
net.ipv4.neigh.default.gc_thresh1 = 1024
net.ipv4.neigh.default.gc_thresh2 = 2048
net.ipv4.neigh.default.gc_thresh3 = 4096
If you’re not going to reboot then you also need to set manually
cd /proc/sys/net/ipv4/neigh/default
echo 1024 > gc_thresh1
echo 2048 > gc_thresh2
echo 4096 > gc_thresh3
Encountered issues with Checkpoint R75
Scenario
A number of R62 and R65 gateways cannot be burnt to from R75 manager. However gateways that are greater than or equal to R70.40 burn fine.
Error message in /var/log/messages on gateway:
fwloghandle_register_string: unable to put entry into table
Solution
Edit /etc/grub.conf on the target gateway and add vmalloc=512M to the kernel line like this:
kernel /vmlinuz ro pci=noacpi root=/dev/mapper/vg_splat-lv_current vmalloc=512M panic=15 console=SERIAL 3 quiet
for 2 quad gigabit cards the example is this
vi /etc/modules.conf
or
vi /etc/modprobe.conf
depending on your version of kernel
add
options e1000 RxDescriptors=4096,4096,4096,4096,4096,4096,4096,4096 TxDescriptors=4096,4096,4096,4096,4096,4096,4096,4096 RxIntDelay=1024
Dmesg reports this error:
CIFS VFS: cifs_mount failed w/return code = -12
Manual mount attempts report this:
mount: mounting //192.168.1.1/share on /mountpoint failed: Cannot allocate memory
Solution:
Regedit on the Windows 7 machine and disable SMB2:
1) HKEY_LOCAL_MACHINE ->SYSTEM ->CurrentControlSet ->Services ->LanmanServer -> Parameters.
2) Create a DWORD with the name SMB2. Value 0
