Hi All, I try to do monitoring a specific interfaces using command "monitor traffic interface <IFD>" I saw a lot of missing byte in the IP packet such as SSH, ICMP, OSPF hello packet, etc across these links (More than 1 links). I use Junos 9.1R4.4 on M120 and GE Interfaces with MTU 4484.
The sample log is: opti...@prime> ping 2.2.2.2 size 33 00:31:25.042381 Out IP truncated-ip - 1 bytes missing! 1.1.1.1 > 2.2.2.2: ICMP echo request, id 27828, seq 2, length 41 00:31:25.797269 Out IP truncated-ip - 24 bytes missing! 1.1.1.1 > 224.0.0.5: OSPFv2, Hello, length 48 The maximum IP packet without "IP Truncate is only 32 byte". If I put 33 bytes, I saw 1 bytes missing as shown in the log above above, and so on. With 32 bytes ICMP packet, the total packet is 32+28 (20 IP header + 8 ICMP header) = 60 bytes max. Is this known problem or bug on tcpdump/9.1 code? Does it affects router performance ? (My router is working fine). Any advice would be appreciated. Regards, Nugroho _______________________________________________ juniper-nsp mailing list [email protected] https://puck.nether.net/mailman/listinfo/juniper-nsp
