-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Hello List ! I have set up a firewall (susefirwall 4.3) between the internet and our internal network. One thing I have noticed is that the backups have slowed down by a factor of 10 ! the adsm backup machine is in the external network, connected via a 100Mbit ethernet card and the machines that are backed up are in the DMZ, also connected via a 100Mbit ethernet card. adsm needs port 1500 and uses a tcp buffersize of 16k. One thing I noticed is the both interfaces show many collisions. This is the output of ifconfig : eth0 Link encap:Ethernet HWaddr 00:80:C8:4C:3F:1F inet addr:134.76.90.254 Bcast:134.76.90.255 Mask:255.255.255.0 inet6 addr: fe80::280:c8ff:fe4c:3f1f/10 Scope:Link inet6 addr: fe80::80:c84c:3f1f/10 Scope:Link UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:2573757 errors:0 dropped:0 overruns:0 frame:0 TX packets:2487098 errors:33900 dropped:0 overruns:3 carrier:33897 collisions:11896 txqueuelen:100 Interrupt:12 Base address:0xe000 eth1 Link encap:Ethernet HWaddr 00:80:AD:03:1C:A3 inet addr:134.76.249.89 Bcast:134.76.249.255 Mask:255.255.255.252 inet6 addr: fe80::80:ad03:1ca3/10 Scope:Link inet6 addr: fe80::280:adff:fe03:1ca3/10 Scope:Link UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:1925308 errors:8 dropped:0 overruns:8 frame:8 TX packets:2016065 errors:28270 dropped:0 overruns:0 carrier:0 collisions:1373 txqueuelen:100 Interrupt:10 Base address:0xd800 any help would be welcome. thanks, Alex. -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.0.5 (GNU/Linux) Comment: For info see http://www.gnupg.org iD8DBQE7Hj48X1OUiCutGtcRAnGzAJ9/T9bwFK1ro/mDWEvjR2fhXg8LmwCfbRmY VtYswGQpM40ga2Qli652jUc= =SFz0 -----END PGP SIGNATURE-----