Another way to test syslog config. Trigger sylog message using "send log <string>"; more TCLSH friendly.
Side note: generate multicast traffic:
1) Also observed that "logging host 239.1.1.2 transport udp port 40000" is possible. One could trigger udp multicast/broadcast packets with "send log ccie" at cli or within tclsh with "for" construct.
2) Using traceroute within tclsh using "for" is better method; one needn't alter config. (learned this one via INE suggestion)
ex traceroute: traceroute 224.1.1.1 ttl 5 5 source serial 0/0 port 40000 probe 1
and loop using tclsh.
Using GNS3 and 12.4(15)T
Cheers