I have two 1841's with a vpn between them
One 1841 has a lot of other misc vpns terminated there, and they all work fine. The other 1841, has only this one vpn.
Packets over 300 bytes are getting dropped or something is happening (proven by pings -- just under 300 bytes works fine)
In the logs though (on both 1841s) I'm getting messages like:
May 9 18:46:28.183 EDT: %CRYPTO-4-RECVD_PKT_MSG_LEN_ERR: decapsulate: packet has bad bad pad length for packet: decrypt error? length destadr=<removed>, prot=50, len=14
May 9 18:46:28.183 EDT: %CRYPTO-4-RECVD_PKT_MAC_ERR: decrypt: mac verify failed for connection id=3003 local=<removed> remote=<removed> spi=D63B2179 seqno=00005100
route cache is turned off on both sides.
Cisco IOS Software, 1841 Software (C1841-ADVSECURITYK9-M), Version 12.4(25b), RELEASE SOFTWARE (fc1)