An Israeli lawmaker said on Wednesday his government was seeking to use diplomatic channels to push Lebanon's Hezbollah fighters away from the border to avoid a war flaring there, although an official close to the group said such ideas were "unrealistic". While battling Hamas in Gaza, Israel has also been trading fire since October on the Lebanese frontier with Hezbollah, which like the Palestinian group is backed by Iran. The border violence is the worst since Israel and Hezbollah fought a month-long war in 2006.