Hi,
I just the following error on the firewall:
[ QUOTE ]
loginuser@gate:/home/login > su -
Password:
gate:/root # ping 172.16.2.1
connect: No buffer space available
[/ QUOTE ]
This is from the kernel log and repeats several times until the point where the system was restarted:
[ QUOTE ]
2004:10:05-10:52:49 gate kernel: Neighbour table overflow.
2004:10:05-10:52:49 gate kernel: MASQUERADE: No route: Rusty's brain broke!
[/ QUOTE ]
Even though today is the first time I noticed these error messages, the problem is quite old. What usually happens is that after the fw has been up for one week (+/- a day or two), its connectivity rapidly degrades, i.e. the latency increases/throughput decreases up to the point that there's no outside connectivity at all any more. Finally I'm even unable to log in via WebAdmin/ssh. Only a reboot or restarting the MiddleWare seems to help.
Currently it's running on 5.023, but the problems have started quite some time and several versions ago.
This is the current configuration:
Intel Celeron 1200MHz, 256MB RAM
NIC1: D-Link DFE-580 (D-Link System Inc DL10050 Sundance Ethernet is what /proc/pci says)
NIC2: RealTek RTL-8139
The box has 5 interfaces, 4 of them being on the D-Link card.
It's doing some NAT (Masquerading as well as SNAT and DNAT), packet filtering and some IPsec Roadwarrior connections (~1 per day).
Proxies: DNS, Socks, SMTP (SMTP only running since a few days). Nothing spectacular at all.
I think it's understandable that a firewall that needs a reboot once a week is not really what I'd expect from it. Can anybody help please?
Thanks,
Sascha
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